About this dataset

Context

The dataset tabulates the Fairfield County population over the last 20 plus years. It lists the population for each year, along with the year on year change in population, as well as the change in percentage terms for each year. The dataset can be utilized to understand the population change of Fairfield County across the last two decades. For example, using this dataset, we can identify if the population is declining or increasing. If there is a change, when the population peaked, or if it is still growing and has not reached its peak. We can also compare the trend with the overall trend of United States population over the same period of time.

Key observations

In 2021, the population of Fairfield County was 959,768, a 0.41% increase year-by-year from 2020. Previously, in 2020, Fairfield County population was 955,895, an increase of 1.22% compared to a population of 944,388 in 2019. Over the last 20 plus years, between 2000 and 2021, population of Fairfield County increased by 75,436. In this period, the peak population was 959,768 in the year 2021. The numbers suggest that the population has not reached its peak yet and is showing a trend of further growth. Source: U.S. Census Bureau Population Estimates Program (PEP).

https://i.neilsberg.com/ch/population-of-fairfield-county-ct-population-by-year-2000-2021.jpeg" alt="Fairfield County population by year">

Content

When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

Data Coverage:

• From 2000 to 2021

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2021)
• Population: The population for the specific year for the Fairfield County is shown in this column.
• Year on Year Change: This column displays the change in Fairfield County population for each year compared to the previous year.
• Change in Percent: This column displays the year on year change as a percentage. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Fairfield County Population by Year. You can refer the same here

About this dataset

Context

The dataset tabulates the Fairfield County population over the last 20 plus years. It lists the population for each year, along with the year on year change in population, as well as the change in percentage terms for each year. The dataset can be utilized to understand the population change of Fairfield County across the last two decades. For example, using this dataset, we can identify if the population is declining or increasing. If there is a change, when the population peaked, or if it is still growing and has not reached its peak. We can also compare the trend with the overall trend of United States population over the same period of time.

Key observations

In 2023, the population of Fairfield County was 165,360, a 1.48% increase year-by-year from 2022. Previously, in 2022, Fairfield County population was 162,956, an increase of 1.08% compared to a population of 161,209 in 2021. Over the last 20 plus years, between 2000 and 2023, population of Fairfield County increased by 41,891. In this period, the peak population was 165,360 in the year 2023. The numbers suggest that the population has not reached its peak yet and is showing a trend of further growth. Source: U.S. Census Bureau Population Estimates Program (PEP).

Content

When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

Data Coverage:

• From 2000 to 2023

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2023)
• Population: The population for the specific year for the Fairfield County is shown in this column.
• Year on Year Change: This column displays the change in Fairfield County population for each year compared to the previous year.
• Change in Percent: This column displays the year on year change as a percentage. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Fairfield County Population by Year. You can refer the same here

Graph and download economic data for Resident Population in Fairfield County, OH (OHFAIR0POP) from 1970 to 2024 about Fairfield County, OH; Columbus; OH; residents; population; and USA.

Graph and download economic data for Resident Population in Fairfield County, CT (DISCONTINUED) (CTFAIR1POP) from 1970 to 2021 about Fairfield County, CT; Bridgeport; CT; residents; population; and USA.

About this dataset

Context

The dataset tabulates the data for the Fairfield County, OH population pyramid, which represents the Fairfield County population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

• Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Fairfield County, OH, is 30.1.
• Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Fairfield County, OH, is 25.2.
• Total dependency ratio for Fairfield County, OH is 55.2.
• Potential support ratio, which is the number of youth (working age population) per elderly, for Fairfield County, OH is 4.0.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Variables / Data Columns

• Age Group: This column displays the age group for the Fairfield County population analysis. Total expected values are 18 and are define above in the age groups section.
• Population (Male): The male population in the Fairfield County for the selected age group is shown in the following column.
• Population (Female): The female population in the Fairfield County for the selected age group is shown in the following column.
• Total Population: The total population of the Fairfield County for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Fairfield County Population by Age. You can refer the same here

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Fairfield County, OH (B03002003E039045) from 2009 to 2023 about Fairfield County, OH; Columbus; white; non-hispanic; estimate; OH; 5-year; persons; population; and USA.

Comprehensive demographic dataset for Fairfield, PA, US including population statistics, household income, housing units, education levels, employment data, and transportation with year-over-year changes.

Comprehensive demographic dataset for Fairfield, CT, US including population statistics, household income, housing units, education levels, employment data, and transportation with year-over-year changes.

U.S. Census Bureau QuickFacts statistics for Fairfield County, Ohio. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

Estimate, Median Age by Sex, Total Population (5-year estimate) in Fairfield County, CT was 40.70000 Years of Age in January of 2021, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in Fairfield County, CT reached a record high of 40.80000 in January of 2020 and a record low of 38.70000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate, Median Age by Sex, Total Population (5-year estimate) in Fairfield County, CT - last updated from the United States Federal Reserve on September of 2025.

Estimate, Median Age by Sex, Total Population (5-year estimate) in Fairfield County, SC was 46.70000 Years of Age in January of 2023, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in Fairfield County, SC reached a record high of 47.30000 in January of 2021 and a record low of 40.70000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate, Median Age by Sex, Total Population (5-year estimate) in Fairfield County, SC - last updated from the United States Federal Reserve on September of 2025.

Resident Population in Fairfield County, CT was 959.76800 Thous. of Persons in January of 2021, according to the United States Federal Reserve. Historically, Resident Population in Fairfield County, CT reached a record high of 959.76800 in January of 2021 and a record low of 786.50000 in January of 1973. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Fairfield County, CT - last updated from the United States Federal Reserve on September of 2025.

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Fairfield County, CT was 196340.00000 Persons in January of 2021, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Fairfield County, CT reached a record high of 196340.00000 in January of 2021 and a record low of 133093.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Fairfield County, CT - last updated from the United States Federal Reserve on September of 2025.

Graph and download economic data for Estimate, Median Age by Sex, Total Population (5-year estimate) in Fairfield County, OH (B01002001E039045) from 2009 to 2023 about Fairfield County, OH; Columbus; age; OH; 5-year; median; and USA.

About this dataset

Context

This list ranks the 24 cities in the Fairfield County, CT by Multi-Racial Asian population, as estimated by the United States Census Bureau. It also highlights population changes in each cities over the past five years.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

• 2019-2023 American Community Survey 5-Year Estimates
• 2018-2022 American Community Survey 5-Year Estimates
• 2017-2021 American Community Survey 5-Year Estimates
• 2016-2020 American Community Survey 5-Year Estimates
• 2015-2019 American Community Survey 5-Year Estimates

Variables / Data Columns

• Rank by Multi-Racial Asian Population: This column displays the rank of cities in the Fairfield County, CT by their Multi-Racial Asian population, using the most recent ACS data available.
• cities: The cities for which the rank is shown in the previous column.
• Multi-Racial Asian Population: The Multi-Racial Asian population of the cities is shown in this column.
• % of Total cities Population: This shows what percentage of the total cities population identifies as Multi-Racial Asian. Please note that the sum of all percentages may not equal one due to rounding of values.
• % of Total Fairfield County Multi-Racial Asian Population: This tells us how much of the entire Fairfield County, CT Multi-Racial Asian population lives in that cities. Please note that the sum of all percentages may not equal one due to rounding of values.
• 5 Year Rank Trend: TThis column displays the rank trend across the last 5 years.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

About this dataset

Context

The dataset tabulates the data for the Fairfield County, CT population pyramid, which represents the Fairfield County population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey 5-Year estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

• Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Fairfield County, CT, is 27.6.
• Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Fairfield County, CT, is 24.0.
• Total dependency ratio for Fairfield County, CT is 51.6.
• Potential support ratio, which is the number of youth (working age population) per elderly, for Fairfield County, CT is 4.2.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Variables / Data Columns

• Age Group: This column displays the age group for the Fairfield County population analysis. Total expected values are 18 and are define above in the age groups section.
• Population (Male): The male population in the Fairfield County for the selected age group is shown in the following column.
• Population (Female): The female population in the Fairfield County for the selected age group is shown in the following column.
• Total Population: The total population of the Fairfield County for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Fairfield County Population by Age. You can refer the same here

About this dataset

Context

The dataset tabulates the Fairfield County population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for Fairfield County. The dataset can be utilized to understand the population distribution of Fairfield County by age. For example, using this dataset, we can identify the largest age group in Fairfield County.

Key observations

The largest age group in Fairfield County, OH was for the group of age 10 to 14 years years with a population of 11,973 (7.42%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Fairfield County, OH was the 85 years and over years with a population of 3,020 (1.87%). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Variables / Data Columns

• Age Group: This column displays the age group in consideration
• Population: The population for the specific age group in the Fairfield County is shown in this column.
• % of Total Population: This column displays the population of each age group as a proportion of Fairfield County total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Fairfield County Population by Age. You can refer the same here

U.S. Census Bureau QuickFacts statistics for Fairfield County, South Carolina. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

Resident Population in Fairfield County, SC was 20.36900 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Fairfield County, SC reached a record high of 23.86000 in January of 2010 and a record low of 19.80000 in January of 1972. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Fairfield County, SC - last updated from the United States Federal Reserve on September of 2025.

Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Fairfield County, SC was 8023.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Fairfield County, SC reached a record high of 9547.00000 in January of 2009 and a record low of 8023.00000 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Fairfield County, SC - last updated from the United States Federal Reserve on September of 2025.