About this dataset

Context

The dataset tabulates the Decatur 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 Decatur 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 Decatur was 68,670, a 0.77% decrease year-by-year from 2022. Previously, in 2022, Decatur population was 69,201, a decline of 1.27% compared to a population of 70,088 in 2021. Over the last 20 plus years, between 2000 and 2023, population of Decatur decreased by 13,169. In this period, the peak population was 81,839 in the year 2000. The numbers suggest that the population has already reached its peak and is showing a trend of decline. 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 Decatur is shown in this column.
• Year on Year Change: This column displays the change in Decatur 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 Decatur Population by Year. You can refer the same here

Graph and download economic data for Resident Population in Decatur, IL (MSA) (DECPOP) from 2000 to 2024 about Decatur, IL, residents, population, and USA.

About this dataset

Context

The dataset tabulates the Decatur 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 Decatur 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 2022, the population of Decatur was 69,097, a 1.18% decrease year-by-year from 2021. Previously, in 2021, Decatur population was 69,919, a decline of 1.13% compared to a population of 70,717 in 2020. Over the last 20 plus years, between 2000 and 2022, population of Decatur decreased by 12,742. In this period, the peak population was 81,839 in the year 2000. The numbers suggest that the population has already reached its peak and is showing a trend of decline. 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 2022

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2022)
• Population: The population for the specific year for the Decatur is shown in this column.
• Year on Year Change: This column displays the change in Decatur 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 Decatur Population by Year. You can refer the same here

About this dataset

Context

The dataset tabulates the Decatur population by age. The dataset can be utilized to understand the age distribution and demographics of Decatur.

Content

The dataset constitues the following three datasets

• Decatur, IL Age Group Population Dataset: A complete breakdown of Decatur age demographics from 0 to 85 years, distributed across 18 age groups
• Decatur, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Decatur - Population and Percentage Analysis
• Decatur, IL Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis

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 Non-Hispanic population of Decatur by race. It includes the distribution of the Non-Hispanic population of Decatur across various race categories as identified by the Census Bureau. The dataset can be utilized to understand the Non-Hispanic population distribution of Decatur across relevant racial categories.

Key observations

Of the Non-Hispanic population in Decatur, the largest racial group is White alone with a population of 46,203 (67.82% of the total Non-Hispanic population).

Content

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

Racial categories include:

• White
• Black or African American
• American Indian and Alaska Native
• Asian
• Native Hawaiian and Other Pacific Islander
• Some other race
• Two or more races (multiracial)

Variables / Data Columns

• Race: This column displays the racial categories (for Non-Hispanic) for the Decatur
• Population: The population of the racial category (for Non-Hispanic) in the Decatur is shown in this column.
• % of Total Population: This column displays the percentage distribution of each race as a proportion of Decatur total Non-Hispanic 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 Decatur Population by Race & Ethnicity. You can refer the same here

Graph and download economic data for Percent of Population Below the Poverty Level (5-year estimate) in Macon County, IL (S1701ACS017115) from 2012 to 2023 about Macon County, IL; Decatur; IL; percent; poverty; 5-year; population; and USA.

Graph and download economic data for Resident Population in Macon County, IL (ILMACO2POP) from 1970 to 2024 about Macon County, IL; Decatur; IL; residents; population; and USA.

About this dataset

Context

The dataset tabulates the data for the Decatur, IL population pyramid, which represents the Decatur population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Decatur, IL, is 27.6.
• Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Decatur, IL, is 33.5.
• Total dependency ratio for Decatur, IL is 61.0.
• Potential support ratio, which is the number of youth (working age population) per elderly, for Decatur, IL is 3.0.

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 for the Decatur population analysis. Total expected values are 18 and are define above in the age groups section.
• Population (Male): The male population in the Decatur for the selected age group is shown in the following column.
• Population (Female): The female population in the Decatur for the selected age group is shown in the following column.
• Total Population: The total population of the Decatur 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 Decatur Population by Age. You can refer the same here

Graph and download economic data for Population Estimate, Total, Hispanic or Latino, Two or More Races (5-year estimate) in Macon County, IL (B03002019E017115) from 2009 to 2023 about Macon County, IL; Decatur; IL; latino; hispanic; estimate; persons; 5-year; population; and USA.

Graph and download economic data for All Employees: Goods Producing in Decatur, IL (MSA) (SMU17195000600000001SA) from Jan 1990 to Jun 2025 about Decatur, IL, production, goods, employment, and USA.

Graph and download economic data for 90% Confidence Interval Lower Bound of Estimate of Median Household Income for Macon County, IL (MHICILBIL17115A052NCEN) from 1989 to 2023 about Macon County, IL; Decatur; IL; households; median; income; and USA.

About this dataset

Context

The dataset tabulates the Decatur population by gender and age. The dataset can be utilized to understand the gender distribution and demographics of Decatur.

Content

The dataset constitues the following two datasets across these two themes

• Decatur, IL Population Breakdown by Gender
• Decatur, IL Population Breakdown by Gender and Age

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/.

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Macon County, IL (B03002004E017115) from 2009 to 2023 about Macon County, IL; Decatur; IL; African-American; non-hispanic; estimate; persons; 5-year; population; and USA.

Graph and download economic data for Estimate of Median Household Income for Macon County, IL (MHIIL17115A052NCEN) from 1989 to 2023 about Macon County, IL; Decatur; IL; households; median; income; and USA.

Resident Population in Decatur, IL (MSA) was 100.73700 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Decatur, IL (MSA) reached a record high of 114.47600 in January of 2000 and a record low of 100.73700 in January of 2024. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Decatur, IL (MSA) - last updated from the United States Federal Reserve on July of 2025.

Graph and download economic data for Estimate of People of All Ages in Poverty in Macon County, IL (PEAAIL17115A647NCEN) from 1989 to 2023 about Macon County, IL; Decatur; child; poverty; IL; persons; and USA.

About this dataset

Context

The dataset tabulates the population of Decatur by race. It includes the population of Decatur across racial categories (excluding ethnicity) as identified by the Census Bureau. The dataset can be utilized to understand the population distribution of Decatur across relevant racial categories.

Key observations

The percent distribution of Decatur population by race (across all racial categories recognized by the U.S. Census Bureau): 69.23% are white, 23.12% are Black or African American, 0.25% are American Indian and Alaska Native, 1.37% are Asian, 0.09% are Native Hawaiian and other Pacific Islander, 0.62% are some other race and 5.32% are multiracial.

https://i.neilsberg.com/ch/decatur-il-population-by-race.jpeg" alt="Decatur population by race">

Content

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

Racial categories include:

• White
• Black or African American
• American Indian and Alaska Native
• Asian
• Native Hawaiian and Other Pacific Islander
• Some other race
• Two or more races (multiracial)

Variables / Data Columns

• Race: This column displays the racial categories (excluding ethnicity) for the Decatur
• Population: The population of the racial category (excluding ethnicity) in the Decatur is shown in this column.
• % of Total Population: This column displays the percentage distribution of each race as a proportion of Decatur 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 Decatur Population by Race & Ethnicity. You can refer the same here

Graph and download economic data for Population Estimate, Total (5-year estimate) in Macon County, IL (B03002001E017115) from 2009 to 2023 about Macon County, IL; Decatur; estimate; IL; persons; 5-year; population; and USA.

Graph and download economic data for Poverty Universe, Age 0-17 for Macon County, IL (PUA0T17IL17115A647NCEN) from 1998 to 2023 about Macon County, IL; Decatur; IL; child; poverty; and USA.

About this dataset

Context

The dataset tabulates the Decatur median household income by race. The dataset can be utilized to understand the racial distribution of Decatur income.

Content

The dataset will have the following datasets when applicable

Please note: The 2020 1-Year ACS estimates data was not reported by the Census Bureau due to the impact on survey collection and analysis caused by COVID-19. Consequently, median household income data for 2020 is unavailable for large cities (population 65,000 and above).

• Decatur, IL median household income breakdown by race betwen 2012 and 2022
• Median Household Income by Racial Categories in Decatur, IL (2022)

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/.

Interested in deeper insights and visual analysis?

Explore our comprehensive data analysis and visual representations for a deeper understanding of Decatur median household income by race. You can refer the same here