35 datasets found
  1. S

    Madagascar - Population density

    • data.subak.org
    tiff
    Updated Feb 16, 2023
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    Madagascar - Population density [Dataset]. https://data.subak.org/dataset/madagascar-population-density-2015
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    tiffAvailable download formats
    Dataset updated
    Feb 16, 2023
    Dataset provided by
    WorldPop
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Madagascar
    Description

    Population density per pixel at 100 metre resolution. WorldPop provides estimates of numbers of people residing in each 100x100m grid cell for every low and middle income country. Through ingegrating cencus, survey, satellite and GIS datasets in a flexible machine-learning framework, high resolution maps of population counts and densities for 2000-2020 are produced, along with accompanying metadata.

    DATASET: Alpha version 2010 and 2015 estimates of numbers of people per grid square, with national totals adjusted to match UN population division estimates (http://esa.un.org/wpp/) and remaining unadjusted.

    REGION: Africa

    SPATIAL RESOLUTION: 0.000833333 decimal degrees (approx 100m at the equator)

    PROJECTION: Geographic, WGS84

    UNITS: Estimated persons per grid square

    MAPPING APPROACH: Land cover based, as described in: Linard, C., Gilbert, M., Snow, R.W., Noor, A.M. and Tatem, A.J., 2012, Population distribution, settlement patterns and accessibility across Africa in 2010, PLoS ONE, 7(2): e31743.

    FORMAT: Geotiff (zipped using 7-zip (open access tool): www.7-zip.org)

    FILENAMES: Example - AGO10adjv4.tif = Angola (AGO) population count map for 2010 (10) adjusted to match UN national estimates (adj), version 4 (v4). Population maps are updated to new versions when improved census or other input data become available.

    Madagascar data available from WorldPop here.

  2. Madagascar: High Resolution Population Density Maps + Demographic Estimates

    • data.amerigeoss.org
    • data.humdata.org
    zip
    Updated Oct 23, 2024
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    UN Humanitarian Data Exchange (2024). Madagascar: High Resolution Population Density Maps + Demographic Estimates [Dataset]. https://data.amerigeoss.org/th/dataset/highresolutionpopulationdensitymaps-mdg
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    zip(6681287), zip(6647427), zip(21832083), zip(21833360), zip(21837979), zip(6630742), zip(21828748), zip(6664287), zip(21830534), zip(21833608), zip(6671417), zip(21833873), zip(6646767), zip(6688788)Available download formats
    Dataset updated
    Oct 23, 2024
    Dataset provided by
    United Nationshttp://un.org/
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    The world's most accurate population datasets. Seven maps/datasets for the distribution of various populations in Madagascar: (1) Overall population density (2) Women (3) Men (4) Children (ages 0-5) (5) Youth (ages 15-24) (6) Elderly (ages 60+) (7) Women of reproductive age (ages 15-49).

  3. M

    Madagascar Population 1950-2025

    • macrotrends.net
    • new.macrotrends.net
    csv
    Updated Feb 28, 2025
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    MACROTRENDS (2025). Madagascar Population 1950-2025 [Dataset]. https://www.macrotrends.net/global-metrics/countries/MDG/madagascar/population
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    csvAvailable download formats
    Dataset updated
    Feb 28, 2025
    Dataset authored and provided by
    MACROTRENDS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Madagascar
    Description

    Chart and table of Madagascar population from 1950 to 2025. United Nations projections are also included through the year 2100.

  4. Southern Madagascar drought map - population and IPC food security -...

    • maps.mapaction.org
    Updated Feb 16, 2022
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    mapaction.org (2022). Southern Madagascar drought map - population and IPC food security - Datasets - MapAction [Dataset]. https://maps.mapaction.org/dataset/2022-mdg-001-ma035-v2
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    Dataset updated
    Feb 16, 2022
    Dataset provided by
    MapActionhttp://www.mapaction.org/
    License

    Open Data Commons Attribution License (ODC-By) v1.0https://www.opendatacommons.org/licenses/by/1.0/
    License information was derived automatically

    Area covered
    Madagascar
    Description

    Map of southern madagascar

  5. T

    Madagascar Population

    • tradingeconomics.com
    • fa.tradingeconomics.com
    • +17more
    csv, excel, json, xml
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    TRADING ECONOMICS, Madagascar Population [Dataset]. https://tradingeconomics.com/madagascar/population
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    csv, excel, xml, jsonAvailable download formats
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Dec 31, 1960 - Dec 31, 2023
    Area covered
    Madagascar
    Description

    The total population in Madagascar was estimated at 30.3 million people in 2023, according to the latest census figures and projections from Trading Economics. This dataset provides the latest reported value for - Madagascar Population - plus previous releases, historical high and low, short-term forecast and long-term prediction, economic calendar, survey consensus and news.

  6. T

    Madagascar - Male Population 00-04

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Jun 2, 2017
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    Madagascar - Male Population 00-04 [Dataset]. https://tradingeconomics.com/madagascar/male-population-00-04-wb-data.html
    Explore at:
    json, csv, excel, xmlAvailable download formats
    Dataset updated
    Jun 2, 2017
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    Population ages 00-04, male in Madagascar was reported at 2326898 Persons in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Male population 00-04 - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  7. Madagascar: Cyclone Enawo- Total Population in Antalaha, Maroantsetra,...

    • maps.mapaction.org
    Updated Mar 13, 2017
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    maps.mapaction.org (2017). Madagascar: Cyclone Enawo- Total Population in Antalaha, Maroantsetra, Andapa and Sambava Districts (2010 data) - Datasets - MapAction [Dataset]. https://maps.mapaction.org/dataset/madagascar-2017-ma005-v1
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    Dataset updated
    Mar 13, 2017
    Dataset provided by
    MapActionhttp://www.mapaction.org/
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Area covered
    Sambava, Andapa, Antalaha, Maroantsetra, Madagascar
    Description

    Map shows total population figures by commune from 2010 projected data. There are a number of known sources of population data for Madagascar currently in use which differ. This map uses data from the INSTAT Madagascar 2010 data (projected from 1993 census).

  8. T

    Madagascar - Population Ages 50-54, Male (% Of Male Population)

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Jun 5, 2017
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    TRADING ECONOMICS (2017). Madagascar - Population Ages 50-54, Male (% Of Male Population) [Dataset]. https://tradingeconomics.com/madagascar/population-ages-50-54-male-percent-of-male-population-wb-data.html
    Explore at:
    json, csv, xml, excelAvailable download formats
    Dataset updated
    Jun 5, 2017
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    Population ages 50-54, male (% of male population) in Madagascar was reported at 3.1391 % in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Population ages 50-54, male (% of male population) - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  9. Affected population at District level (As of 14th Feb 2022) - Datasets -...

    • maps.mapaction.org
    Updated Feb 15, 2022
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    mapaction.org (2022). Affected population at District level (As of 14th Feb 2022) - Datasets - MapAction [Dataset]. https://maps.mapaction.org/dataset/2022-mdg-001-ma014-v2
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    Dataset updated
    Feb 15, 2022
    Dataset provided by
    MapActionhttp://www.mapaction.org/
    Description

    This map shows the number of deceased and injured people in Districts of Madagascar as of 14th Feb 2022. Cette carte montre le nombre de personnes décédées et sinistres dans les districts de Madagascar au 14 février 2022

  10. T

    Madagascar - Male Population 05-09

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Jun 3, 2017
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    TRADING ECONOMICS (2017). Madagascar - Male Population 05-09 [Dataset]. https://tradingeconomics.com/madagascar/male-population-05-09-wb-data.html
    Explore at:
    xml, json, csv, excelAvailable download formats
    Dataset updated
    Jun 3, 2017
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    Population ages 05-09, male in Madagascar was reported at 2047046 Persons in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Male population 05-09 - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  11. w

    Evolution of historical female population in Madagascar

    • workwithdata.com
    Updated Jan 26, 2025
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    Work With Data (2025). Evolution of historical female population in Madagascar [Dataset]. https://www.workwithdata.com/charts/countries-yearly?agg=sum&chart=line&f=1&fcol0=country&fop0=%3D&fval0=Madagascar&x=date&y=population_female
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    Dataset updated
    Jan 26, 2025
    Dataset authored and provided by
    Work With Data
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Madagascar
    Description

    This line chart displays female population (people) by date using the aggregation sum and is filtered where the country is Madagascar. The data is about countries per year.

  12. w

    Distribution of urban population per continent in Madagascar and in 2023

    • workwithdata.com
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    Work With Data, Distribution of urban population per continent in Madagascar and in 2023 [Dataset]. https://www.workwithdata.com/charts/countries-yearly?agg=sum&chart=bar&f=2&fcol0=country&fcol1=date&fop0=%3D&fop1=%3D&fval0=Madagascar&fval1=2023&x=continent&y=urban_population
    Explore at:
    Dataset authored and provided by
    Work With Data
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Madagascar
    Description

    This bar chart displays urban population (people) by continent using the aggregation sum and is filtered where the country is Madagascar and the date is 2023. The data is about countries per year.

  13. T

    Madagascar - Population Ages 5-9, Male (% Of Male Population)

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Jun 5, 2017
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    TRADING ECONOMICS (2017). Madagascar - Population Ages 5-9, Male (% Of Male Population) [Dataset]. https://tradingeconomics.com/madagascar/population-ages-5-9-male-percent-of-male-population-wb-data.html
    Explore at:
    csv, excel, xml, jsonAvailable download formats
    Dataset updated
    Jun 5, 2017
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    Population ages 05-09, male (% of male population) in Madagascar was reported at 13.08 % in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Population ages 5-9, male (% of male population) - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  14. T

    Madagascar - Population In Largest City

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Feb 8, 2020
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    TRADING ECONOMICS (2020). Madagascar - Population In Largest City [Dataset]. https://tradingeconomics.com/madagascar/population-in-largest-city-wb-data.html
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    csv, excel, json, xmlAvailable download formats
    Dataset updated
    Feb 8, 2020
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    Population in largest city in Madagascar was reported at 3872264 in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Population in largest city - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  15. T

    Madagascar - Population Of The Official Age For Secondary Education, Male

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Jun 11, 2017
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    Madagascar - Population Of The Official Age For Secondary Education, Male [Dataset]. https://tradingeconomics.com/madagascar/population-of-the-official-age-for-secondary-education-male-number-wb-data.html
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    xml, json, csv, excelAvailable download formats
    Dataset updated
    Jun 11, 2017
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    School age population, secondary education, male (number) in Madagascar was reported at 2209972 Persons in 2020, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Population of the official age for secondary education, male - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  16. T

    Madagascar - Elderly Illiterate Population, 65+ Years, % Female

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Jul 12, 2024
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    TRADING ECONOMICS (2024). Madagascar - Elderly Illiterate Population, 65+ Years, % Female [Dataset]. https://tradingeconomics.com/madagascar/elderly-illiterate-population-65-years-percent-female-wb-data.html
    Explore at:
    csv, excel, xml, jsonAvailable download formats
    Dataset updated
    Jul 12, 2024
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    Elderly illiterate population, 65+ years, % female in Madagascar was reported at 65.02 % in 2018, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Elderly illiterate population, 65+ years, % female - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  17. T

    Madagascar - Population Ages 15-64, Male (% Of Total)

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Jun 9, 2017
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    TRADING ECONOMICS (2017). Madagascar - Population Ages 15-64, Male (% Of Total) [Dataset]. https://tradingeconomics.com/madagascar/population-ages-15-64-male-percent-of-total-wb-data.html
    Explore at:
    json, xml, csv, excelAvailable download formats
    Dataset updated
    Jun 9, 2017
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    Population ages 15-64, male (% of male population) in Madagascar was reported at 56.95 % in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Population ages 15-64, male (% of total) - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  18. Extreme poverty as share of global population in Africa 2025, by country

    • statista.com
    Updated Feb 3, 2025
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    Extreme poverty as share of global population in Africa 2025, by country [Dataset]. https://www.statista.com/statistics/1228553/extreme-poverty-as-share-of-global-population-in-africa-by-country/
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    Dataset updated
    Feb 3, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2025
    Area covered
    Africa
    Description

    In 2025, nearly 11.7 percent of the world population in extreme poverty, with the poverty threshold at 2.15 U.S. dollars a day, lived in Nigeria. Moreover, the Democratic Republic of the Congo accounted for around 11.7 percent of the global population in extreme poverty. Other African nations with a large poor population were Tanzania, Mozambique, and Madagascar. Poverty levels remain high despite the forecast decline Poverty is a widespread issue across Africa. Around 429 million people on the continent were living below the extreme poverty line of 2.15 U.S. dollars a day in 2024. Since the continent had approximately 1.4 billion inhabitants, roughly a third of Africa’s population was in extreme poverty that year. Mozambique, Malawi, Central African Republic, and Niger had Africa’s highest extreme poverty rates based on the 2.15 U.S. dollars per day extreme poverty indicator (updated from 1.90 U.S. dollars in September 2022). Although the levels of poverty on the continent are forecast to decrease in the coming years, Africa will remain the poorest region compared to the rest of the world. Prevalence of poverty and malnutrition across Africa Multiple factors are linked to increased poverty. Regions with critical situations of employment, education, health, nutrition, war, and conflict usually have larger poor populations. Consequently, poverty tends to be more prevalent in least-developed and developing countries worldwide. For similar reasons, rural households also face higher poverty levels. In 2024, the extreme poverty rate in Africa stood at around 45 percent among the rural population, compared to seven percent in urban areas. Together with poverty, malnutrition is also widespread in Africa. Limited access to food leads to low health conditions, increasing the poverty risk. At the same time, poverty can determine inadequate nutrition. Almost 38.3 percent of the global undernourished population lived in Africa in 2022.

  19. T

    Madagascar - Population Ages 15-19, Male (% Of Male Population)

    • tradingeconomics.com
    csv, excel, json, xml
    Updated Jun 2, 2017
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    TRADING ECONOMICS (2017). Madagascar - Population Ages 15-19, Male (% Of Male Population) [Dataset]. https://tradingeconomics.com/madagascar/population-ages-15-19-male-percent-of-male-population-wb-data.html
    Explore at:
    csv, excel, xml, jsonAvailable download formats
    Dataset updated
    Jun 2, 2017
    Dataset authored and provided by
    TRADING ECONOMICS
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 1, 1976 - Dec 31, 2025
    Area covered
    Madagascar
    Description

    Population ages 15-19, male (% of male population) in Madagascar was reported at 10.73 % in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. Madagascar - Population ages 15-19, male (% of male population) - actual values, historical data, forecasts and projections were sourced from the World Bank on March of 2025.

  20. i

    Afrobarometer Survey 2005-2006 - Africa

    • dev.ihsn.org
    Updated Apr 25, 2019
    + more versions
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    Institute for Democracy in South Africa (IDASA) (2019). Afrobarometer Survey 2005-2006 - Africa [Dataset]. https://dev.ihsn.org/nada/catalog/study/AFR_2005_AFB-18_v01_M
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    Dataset updated
    Apr 25, 2019
    Dataset provided by
    Michigan State University (MSU)
    Institute for Democracy in South Africa (IDASA)
    Ghana Centre for Democratic Development (CDD-Ghana)
    Time period covered
    2005 - 2006
    Area covered
    Africa
    Description

    Abstract

    The Afrobarometer project assesses attitudes and public opinion on democracy, markets, and civil society in several sub-Saharan African.This dataset was compiled from the studies in Round 3 of the Afrobarometer survey, conducted from 2005-2006 in 18 African countries (Benin, Botswana, Cape Verde, Ghana, Kenya, Lesotho, Madagascar, Malawi, Mali, Mozambique, Namibia, Nigeria, Senegal, South Africa, Tanzania, Uganda, Zambia, Zimbabwe).

    Geographic coverage

    The Afrobarometer surveys have national coverage

    Botswana Lesotho Malawi Namibia South Africa Zambia Zimbabwe Ghana Mali Nigeria Tanzania Uganda Cape Verde Mozambique Senegal Kenya Benin Madagascar

    Analysis unit

    Basic units of analysis that the study investigates include: individuals and groups

    Universe

    The sample universe for Afrobarometer surveys includes all citizens of voting age within the country. In other words, we exclude anyone who is not a citizen and anyone who has not attained this age (usually 18 years) on the day of the survey. Also excluded are areas determined to be either inaccessible or not relevant to the study, such as those experiencing armed conflict or natural disasters, as well as national parks and game reserves. As a matter of practice, we have also excluded people living in institutionalized settings, such as students in dormitories and persons in prisons or nursing homes.

    What to do about areas experiencing political unrest? On the one hand we want to include them because they are politically important. On the other hand, we want to avoid stretching out the fieldwork over many months while we wait for the situation to settle down. It was agreed at the 2002 Cape Town Planning Workshop that it is difficult to come up with a general rule that will fit all imaginable circumstances. We will therefore make judgments on a case-by-case basis on whether or not to proceed with fieldwork or to exclude or substitute areas of conflict. National Partners are requested to consult Core Partners on any major delays, exclusions or substitutions of this sort.

    Kind of data

    Sample survey data [ssd]

    Sampling procedure

    A new sample has to be drawn for each round of Afrobarometer surveys. Whereas the standard sample size for Round 3 surveys will be 1200 cases, a larger sample size will be required in societies that are extremely heterogeneous (such as South Africa and Nigeria), where the sample size will be increased to 2400. Other adaptations may be necessary within some countries to account for the varying quality of the census data or the availability of census maps.

    The sample is designed as a representative cross-section of all citizens of voting age in a given country. The goal is to give every adult citizen an equal and known chance of selection for interview. We strive to reach this objective by (a) strictly applying random selection methods at every stage of sampling and by (b) applying sampling with probability proportionate to population size wherever possible. A randomly selected sample of 1200 cases allows inferences to national adult populations with a margin of sampling error of no more than plus or minus 2.5 percent with a confidence level of 95 percent. If the sample size is increased to 2400, the confidence interval shrinks to plus or minus 2 percent.

    Sample Universe

    The sample universe for Afrobarometer surveys includes all citizens of voting age within the country. In other words, we exclude anyone who is not a citizen and anyone who has not attained this age (usually 18 years) on the day of the survey. Also excluded are areas determined to be either inaccessible or not relevant to the study, such as those experiencing armed conflict or natural disasters, as well as national parks and game reserves. As a matter of practice, we have also excluded people living in institutionalized settings, such as students in dormitories and persons in prisons or nursing homes.

    What to do about areas experiencing political unrest? On the one hand we want to include them because they are politically important. On the other hand, we want to avoid stretching out the fieldwork over many months while we wait for the situation to settle down. It was agreed at the 2002 Cape Town Planning Workshop that it is difficult to come up with a general rule that will fit all imaginable circumstances. We will therefore make judgments on a case-by-case basis on whether or not to proceed with fieldwork or to exclude or substitute areas of conflict. National Partners are requested to consult Core Partners on any major delays, exclusions or substitutions of this sort.

    Sample Design

    The sample design is a clustered, stratified, multi-stage, area probability sample.

    To repeat the main sampling principle, the objective of the design is to give every sample element (i.e. adult citizen) an equal and known chance of being chosen for inclusion in the sample. We strive to reach this objective by (a) strictly applying random selection methods at every stage of sampling and by (b) applying sampling with probability proportionate to population size wherever possible.

    In a series of stages, geographically defined sampling units of decreasing size are selected. To ensure that the sample is representative, the probability of selection at various stages is adjusted as follows:

    The sample is stratified by key social characteristics in the population such as sub-national area (e.g. region/province) and residential locality (urban or rural). The area stratification reduces the likelihood that distinctive ethnic or language groups are left out of the sample. And the urban/rural stratification is a means to make sure that these localities are represented in their correct proportions. Wherever possible, and always in the first stage of sampling, random sampling is conducted with probability proportionate to population size (PPPS). The purpose is to guarantee that larger (i.e., more populated) geographical units have a proportionally greater probability of being chosen into the sample. The sampling design has four stages

    A first-stage to stratify and randomly select primary sampling units;

    A second-stage to randomly select sampling start-points;

    A third stage to randomly choose households;

    A final-stage involving the random selection of individual respondents

    We shall deal with each of these stages in turn.

    STAGE ONE: Selection of Primary Sampling Units (PSUs)

    The primary sampling units (PSU's) are the smallest, well-defined geographic units for which reliable population data are available. In most countries, these will be Census Enumeration Areas (or EAs). Most national census data and maps are broken down to the EA level. In the text that follows we will use the acronyms PSU and EA interchangeably because, when census data are employed, they refer to the same unit.

    We strongly recommend that NIs use official national census data as the sampling frame for Afrobarometer surveys. Where recent or reliable census data are not available, NIs are asked to inform the relevant Core Partner before they substitute any other demographic data. Where the census is out of date, NIs should consult a demographer to obtain the best possible estimates of population growth rates. These should be applied to the outdated census data in order to make projections of population figures for the year of the survey. It is important to bear in mind that population growth rates vary by area (region) and (especially) between rural and urban localities. Therefore, any projected census data should include adjustments to take such variations into account.

    Indeed, we urge NIs to establish collegial working relationships within professionals in the national census bureau, not only to obtain the most recent census data, projections, and maps, but to gain access to sampling expertise. NIs may even commission a census statistician to draw the sample to Afrobarometer specifications, provided that provision for this service has been made in the survey budget.

    Regardless of who draws the sample, the NIs should thoroughly acquaint themselves with the strengths and weaknesses of the available census data and the availability and quality of EA maps. The country and methodology reports should cite the exact census data used, its known shortcomings, if any, and any projections made from the data. At minimum, the NI must know the size of the population and the urban/rural population divide in each region in order to specify how to distribute population and PSU's in the first stage of sampling. National investigators should obtain this written data before they attempt to stratify the sample.

    Once this data is obtained, the sample population (either 1200 or 2400) should be stratified, first by area (region/province) and then by residential locality (urban or rural). In each case, the proportion of the sample in each locality in each region should be the same as its proportion in the national population as indicated by the updated census figures.

    Having stratified the sample, it is then possible to determine how many PSU's should be selected for the country as a whole, for each region, and for each urban or rural locality.

    The total number of PSU's to be selected for the whole country is determined by calculating the maximum degree of clustering of interviews one can accept in any PSU. Because PSUs (which are usually geographically small EAs) tend to be socially homogenous we do not want to select too many people in any one place. Thus, the Afrobarometer has established a standard of no more than 8 interviews per PSU. For a sample size of 1200, the sample must therefore contain 150 PSUs/EAs (1200 divided by 8). For a sample size of 2400, there must be 300 PSUs/EAs.

    These PSUs should then be allocated

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Madagascar - Population density [Dataset]. https://data.subak.org/dataset/madagascar-population-density-2015

Madagascar - Population density

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tiffAvailable download formats
Dataset updated
Feb 16, 2023
Dataset provided by
WorldPop
License

Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
License information was derived automatically

Area covered
Madagascar
Description

Population density per pixel at 100 metre resolution. WorldPop provides estimates of numbers of people residing in each 100x100m grid cell for every low and middle income country. Through ingegrating cencus, survey, satellite and GIS datasets in a flexible machine-learning framework, high resolution maps of population counts and densities for 2000-2020 are produced, along with accompanying metadata.

DATASET: Alpha version 2010 and 2015 estimates of numbers of people per grid square, with national totals adjusted to match UN population division estimates (http://esa.un.org/wpp/) and remaining unadjusted.

REGION: Africa

SPATIAL RESOLUTION: 0.000833333 decimal degrees (approx 100m at the equator)

PROJECTION: Geographic, WGS84

UNITS: Estimated persons per grid square

MAPPING APPROACH: Land cover based, as described in: Linard, C., Gilbert, M., Snow, R.W., Noor, A.M. and Tatem, A.J., 2012, Population distribution, settlement patterns and accessibility across Africa in 2010, PLoS ONE, 7(2): e31743.

FORMAT: Geotiff (zipped using 7-zip (open access tool): www.7-zip.org)

FILENAMES: Example - AGO10adjv4.tif = Angola (AGO) population count map for 2010 (10) adjusted to match UN national estimates (adj), version 4 (v4). Population maps are updated to new versions when improved census or other input data become available.

Madagascar data available from WorldPop here.

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