Cambridge is a village located in Henry County, Illinois. Cambridge has a 2025 population of 2,021 . It is also the county seat of Henry County . Cambridge is currently declining at a rate of -0.64% annually and its population has decreased by -3.02% since the most recent census, which recorded a population of 2,084 in 2020.
The average household income in Cambridge is $82,098 with a poverty rate of 7.4%. The median age in Cambridge is 35.6 years: 32.6 years for males, and 40.5 years for females. For every 100 females there are 102.8 males.
Data after 2023 is projected based on recent change
The racial composition of Cambridge includes 92.22% White, and smaller percentages for Black or African American, Asian and multiracial populations.
White (92.22%)
Two or more races (4.49%)
Black or African American (2.43%)
Asian (0.87%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,014 | 92.22% |
| Two or more races | 98 | 4.49% |
| Black or African American | 53 | 2.43% |
| Asian | 19 | 0.87% |
Married
Widowed
Divorced
Separated
Never Married
Cambridge's average per capita income is $39,818. Household income levels show a median of $72,292. The poverty rate stands at 7.4%.
Name | Median | Mean |
|---|---|---|
| Married Families | $92,083 | - |
| Families | $81,500 | $92,284 |
| Households | $72,292 | $82,098 |
| Non Families | $43,516 | $51,222 |
Average Income
Median Household Income
Poverty Rate