Harlem is located in Winnebago County, Illinois. Harlem has a 2025 population of 39,537 . Harlem is currently growing at a rate of 0.66% annually and its population has increased by 0.83% since the most recent census, which recorded a population of 39,212 in 2020.
The average household income in Harlem is $96,252 with a poverty rate of 11.71%. The median age in Harlem is 40 years: 40.2 years for males, and 39.7 years for females. For every 100 females there are 92.0 males.
Data after 2023 is projected based on recent change
The racial composition of Harlem includes 82.87% White, 4.03% Black or African American, 3.18% Asian, and smaller percentages for other race, Native American and multiracial populations.
White (82.87%)
Two or more races (6.91%)
Black or African American (4.03%)
Asian (3.18%)
Other race (2.59%)
Native American (0.4%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 32,361 | 82.87% |
| Two or more races | 2,700 | 6.91% |
| Black or African American | 1,573 | 4.03% |
| Asian | 1,243 | 3.18% |
| Other race | 1,013 | 2.59% |
| Native American | 158 | 0.4% |
Married
Widowed
Divorced
Separated
Never Married
Harlem's average per capita income is $50,686. Household income levels show a median of $76,630. The poverty rate stands at 11.71%.
Name | Median | Mean |
|---|---|---|
| Married Families | $109,105 | - |
| Families | $90,044 | $107,773 |
| Households | $76,630 | $96,252 |
| Non Families | $49,957 | $63,247 |
Average Income
Median Household Income
Poverty Rate