Chatham Flag

Chatham

County:
Sangamon County
County Seat:
No
Area (mi²):
7.406
State:
Illinois

Chatham is a village located in Sangamon County, Illinois. Chatham has a 2025 population of 14,597. Chatham is currently growing at a rate of 0.25% annually and its population has increased by 1.26% since the most recent census, which recorded a population of 14,416 in 2020.

The average household income in Chatham is $121,600 with a poverty rate of 3.68%.The median age in Chatham is 35.1 years: 37.7 years for males, and 31.8 years for females.

14.6K
Total Population
1,971
Density (mi²)
36 0.25%
Growth

Chatham Population

Chatham Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Chatham includes 90.23% White, and smaller percentages for Asian, Black or African American, other race, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White13,30090.23%
Two or more races5843.96%
Asian3742.54%
Black or African American3342.27%
Other race1330.9%
Native Hawaiian or Pacific Islander150.1%

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 $67,687. Household income levels show a median of $106,030. The poverty rate stands at 3.68%.

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$140,744-
Families$132,575$150,793
Households$106,030$121,600
Non Families$59,067$63,562

$67,687

Average Income

$106,030

Median Household Income

3.68%

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)