Lanark is a city located in Carroll County, Illinois. Lanark has a 2026 population of 1,439. Lanark is currently declining at a rate of -0.83% annually and its population has decreased by -4.7% since the most recent census, which recorded a population of 1,510 in 2020.
The median household income in Lanark is $59,375 with a poverty rate of 12.65%. The median age in Lanark is 38.4 years: 34.9 years for males, and 39.4 years for females. For every 100 females there are 113.1 males.
Data after 2023 is projected based on recent change
Overall: 38.4 years
Female: 39.4 years
Male: 34.9 years
There are 1,166 adults, (332 of whom are seniors) in Lanark.
Female: 723 (46.9%)
Male: 818 (53.1%)
The racial composition of Lanark includes 95.2% White, and smaller percentages for other race, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,467 | 95.2% |
| Two or more races | 63 | 4.09% |
| Other race | 6 | 0.39% |
| Black or African American | 5 | 0.32% |
Lanark 's average per capita income is $49,202. Household income levels show a median of $59,375. The poverty rate stands at 12.65%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $120,000 | - |
| Families | $86,563 | $95,626 |
| Households | $59,375 | $79,076 |
| Non Families | $39,464 | $44,418 |
Average Income
Median Household Income
Poverty Rate