Boulder Hill is a CDP located in Kane County, Illinois. Boulder Hill has a 2025 population of 9,907 . Boulder Hill is currently growing at a rate of 1.23% annually and its population has increased by 9.1% since the most recent census, which recorded a population of 9,081 in 2020.
The average household income in Boulder Hill is $94,020 with a poverty rate of 6.96%. The median age in Boulder Hill is 36.8 years: 36.1 years for males, and 37.6 years for females. For every 100 females there are 90.0 males.
Data after 2023 is projected based on recent change
The racial composition of Boulder Hill includes 63.24% White, 14.18% other race, and smaller percentages for Native American, Black or African American, Asian and multiracial populations.
White (63.24%)
Two or more races (17.08%)
Other race (14.18%)
Native American (2.27%)
Black or African American (1.64%)
Asian (1.59%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 5,772 | 63.24% |
| Two or more races | 1,559 | 17.08% |
| Other race | 1,294 | 14.18% |
| Native American | 207 | 2.27% |
| Black or African American | 150 | 1.64% |
| Asian | 145 | 1.59% |
Married
Widowed
Divorced
Separated
Never Married
Boulder Hill's average per capita income is $45,156. Household income levels show a median of $76,935. The poverty rate stands at 6.96%.
Name | Median | Mean |
|---|---|---|
| Married Families | $93,657 | - |
| Families | $82,363 | $95,082 |
| Households | $76,935 | $94,020 |
| Non Families | $52,971 | $68,058 |
Average Income
Median Household Income
Poverty Rate