Lake township is located in Clinton County, Illinois. Lake township has a 2026 population of 833. Lake township is currently growing at a rate of 0.85% annually and its population has increased by 1.83% since the most recent census, which recorded a population of 818 in 2020.
The median household income in Lake township is $73,448 with a poverty rate of 4.23%. The median age in Lake township is 33.6 years: 34.5 years for males, and 32.8 years for females. For every 100 females there are 105.6 males.
Data after 2023 is projected based on recent change
Overall: 33.6 years
Female: 32.8 years
Male: 34.5 years
There are 554 adults, (147 of whom are seniors) in Lake township.
Female: 391 (48.6%)
Male: 413 (51.4%)
The racial composition of Lake township includes 98.01% White, and smaller percentages for Two or more races and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 788 | 98.01% |
| Two or more races | 16 | 1.99% |
Lake township 's average per capita income is $53,235. Household income levels show a median of $73,448. The poverty rate stands at 4.23%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $90,250 | - |
| Families | $75,833 | $95,516 |
| Households | $73,448 | $82,141 |
| Non Families | $38,750 | $47,688 |
Average Income
Median Household Income
Poverty Rate