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 2026 population of 14,751. Chatham is currently growing at a rate of 0.38% annually and its population has increased by 2.33% since the most recent census, which recorded a population of 14,415 in 2020.

The median household income in Chatham is $106,773 with a poverty rate of 3.3%. The median age in Chatham is 35.4 years: 38.2 years for males, and 32.4 years for females. For every 100 females there are 79.6 males.

14.8K
Total Population
1,992
Density (mi²)
56 0.38%
Growth

Chatham Population

Chatham Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202614,751560.38%
202514,695560.38%
202414,639630.43%
202314,5761150.8%
202214,461-7-0.05%
202114,468530.37%
202014,415340.24%
201913,0272041.59%
201812,823430.34%
201712,7801901.51%
201612,5901190.95%
201512,4711261.02%
201412,3451551.27%
201312,1901140.94%
201212,0761201%
201111,9561771.5%
201011,7792792.43%
20008,5832,50941.31%
19906,0744778.52%
19805,5972,809100.75%
19702,78800%

Median Age

Overall: 35.4 years
Female: 32.4 years
Male: 38.2 years

Chatham Adults

There are 10,032 adults, (1,748 of whom are seniors) in Chatham.

Sex Ratio

Female: 8,152 (55.7%)
Male: 6,487 (44.3%)

Demographics

The racial composition of Chatham includes 88.68% White, 3.09% Asian, and smaller percentages for Black or African American, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White12,98288.68%
Two or more races6744.6%
Asian4533.09%
Black or African American3962.71%
Other race1340.92%
Race
Population ↓
Percentage (of total)
Two or more races2601.78%
Other race1340.92%
Black or African American990.68%
White740.51%
Race
Population ↓
Percentage (of total)
White12,90888.18%
Asian4533.09%
Two or more races4142.83%
Black or African American2972.03%

Chatham Marital Status

Economics and Income Statistics

Chatham 's average per capita income is $68,038. Household income levels show a median of $106,773. The poverty rate stands at 3.3%.

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$143,285-
Families$137,652$153,531
Households$106,773$123,068
Non Families$61,320$65,513

$68,038

Average Income

$106,773

Median Household Income

3.3%

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)