Chatham, Illinois Population 2023

15,241

Chatham is a city located in Sangamon County Illinois. With a 2023 population of 15,241, it is the 161st largest city in Illinois and the 2936th largest city in the United States.Chatham is currently growing at a rate of 1.93% annually and its population has increased by 6.01% since the most recent census, which recorded a population of 14,377 in 2020. Spanning over 7 miles, Chatham has a population density of 2,087 people per square mile.

The average household income in Chatham is $102,626 with a poverty rate of 5.02%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Chatham is 35.2 years, 36.9 years for males, and 33.5 years for females.

Chatham Demographics

According to the most recent ACS, the racial composition of Chatham was:

  • White: 95.71%
  • Two or more races: 1.63%
  • Black or African American: 1.34%
  • Asian: 1.07%
  • Native Hawaiian or Pacific Islander: 0.14%
  • Other race: 0.11%
  • Native American: 0.00%
The current population of Chatham, Illinois is 15,241 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 14,377.

Chatham, Illinois Population 2023

Population by Race

White

Two or more races

Black or African American

Asian

Native Hawaiian or Pacific Islander

Other race

Native American

Chatham Population by Race

Chatham Population Pyramid 2023

Chatham Median Age

35.2

Total

36.9

Male

33.5

Female

Chatham Adults

There are 9,213 adults, (1,350 of whom are seniors) in Chatham.

Chatham Age Dependency

68.3

Age Dependency Ratio

17.2

Old Age Dependency Ratio

51.1

Child Dependency Ratio

Chatham Sex Ratio

Female7,29355.12%
Male5,93844.88%

Chatham Population by Age

Chatham Renter vs Owner Occupied by Household Type

3.23

Average Family Size

2.75

Average Household Size

80.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Chatham Households and Families

Male

Female

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Chatham Educational Attainment by Sex (over 25)

Chatham Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 71.43%.

Chatham Educational Attainment by Race

All

Male

Female

$57,247

Average Earnings

$64,946

Average Male

$48,275

Average Female

Chatham Earnings by Educational Attainment

Chatham Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Chatham Language

97.42% of Chatham residents speak only English, while 2.58% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.31% of the population.

Chatham Language

Chatham Poverty by Race

rate

5.02%

Overall Poverty Rate

3.36%

Male Poverty Rate

4.09%

Female Poverty Rate

Poverty in Chatham

The race most likely to be in poverty in Chatham is Black, with 55.66% below the poverty level.

The race least likely to be in poverty in Chatham is White, with 4.64% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.52%. Among those working part-time, it was 6.71%, and for those that did not work, the poverty rate was 7.31%.

Chatham Poverty

Chatham Poverty Rate by Education

Chatham Poverty Rate by Employment Status and Sex

Chatham Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

mean

median

Income by Household Type

Chatham Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

57.6%

Overall Marriage Rate

62.9%

Male Marriage Rate

53.1%

Female Marriage Rate

Chatham Married by Age and Sex

male

female

Chatham Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Chatham Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Chatham Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

685

Number of Veterans

635

Male Veterans

50

Female Veterans

Chatham Veterans by War

Chatham Veterans by Age

count

Chatham Veterans by Race

Chatham Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.19%

Veteran Poverty Rate

34.31%

Veteran Disability Rate

Chatham Veterans by Education

LaborForceParticipation

74.4%

Labor Force Participation

73.4%

Employment Rate

1.4%

Unemployment Rate

Chatham Employment by Age

LaborForceParticipation

Chatham Employment by Race

LaborForceParticipation

Chatham Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

73.55%

Born in Chatham

90.25%

Native Born

1.78%

Foreign Born

0.22%

Non Citizen

1.56%

Naturalized

Place of Birth

90.25% of Chatham residents were born in the United States, with 73.55% having been born in Illinois. 0.22% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Chatham Place of Birth

Note: data after 2020 is projected based on recent growth

Chatham Population by Year