Chatham Flag

Chatham

County:
Sangamon County
County Seat:
No
Area (mi²):
37.237
State:
Illinois

Chatham is located in Sangamon County, Illinois. Chatham has a 2025 population of 8,562 . Chatham is currently growing at a rate of 0.4% annually and its population has increased by 1.78% since the most recent census, which recorded a population of 8,412 in 2020.

The average household income in Chatham is $99,132 with a poverty rate of 4.5%. The median age in Chatham is 34 years: 36.7 years for males, and 31.6 years for females. For every 100 females there are 82.8 males.

8.6K
Total Population
230
Density (mi²)
34 0.4%
Growth

Chatham Population

Chatham Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Chatham includes 87.97% White, 3.39% Black or African American, and smaller percentages for Asian, other race and multiracial populations.

Population by Race

White (87.97%)

Two or more races (5.08%)

Black or African American (3.39%)

Asian (1.99%)

Other race (1.58%)

Race
Population
Percentage (of total)
White7,39887.97%
Two or more races4275.08%
Black or African American2853.39%
Asian1671.99%
Other race1331.58%

Chatham Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Chatham's average per capita income is $62,859. Household income levels show a median of $87,152. The poverty rate stands at 4.5%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$125,227-
Families$115,526$126,060
Households$87,152$99,132
Non Families$59,683$63,986

$62,859

Average Income

$87,152

Median Household Income

4.5%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)