Gillespie is a city located in Macoupin County, Illinois. Gillespie has a 2026 population of 3,049. Gillespie is currently declining at a rate of -0.62% annually and its population has decreased by -3.6% since the most recent census, which recorded a population of 3,163 in 2020.
The median household income in Gillespie is $82,772 with a poverty rate of 17.09%. The median age in Gillespie is 45.3 years: 42.1 years for males, and 47.7 years for females. For every 100 females there are 115.5 males.
Data after 2023 is projected based on recent change
Overall: 45.3 years
Female: 47.7 years
Male: 42.1 years
There are 2,229 adults, (596 of whom are seniors) in Gillespie.
Female: 1,306 (46.4%)
Male: 1,509 (53.6%)
The racial composition of Gillespie includes 92.26% White, and smaller percentages for other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,597 | 92.26% |
| Two or more races | 212 | 7.53% |
| Other race | 6 | 0.21% |
Gillespie 's average per capita income is $57,260. Household income levels show a median of $82,772. The poverty rate stands at 17.09%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $109,333 | - |
| Families | $88,519 | $99,814 |
| Households | $82,772 | $89,461 |
| Non Families | $42,241 | $58,704 |
Average Income
Median Household Income
Poverty Rate