Williams township is located in Sangamon County, Illinois. Williams township has a 2026 population of 3,436. Williams township is currently growing at a rate of 0.15% annually but its population has decreased by -0.41% since the most recent census, which recorded a population of 3,450 in 2020.
The median household income in Williams township is $125,583 with a poverty rate of 4.24%. The median age in Williams township is 40.4 years: 33.8 years for males, and 43.2 years for females. For every 100 females there are 112.8 males.
Data after 2023 is projected based on recent change
Overall: 40.4 years
Female: 43.2 years
Male: 33.8 years
There are 2,379 adults, (724 of whom are seniors) in Williams township.
Female: 1,608 (47%)
Male: 1,814 (53%)
The racial composition of Williams township includes 92.96% White, and smaller percentages for Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 3,181 | 92.96% |
| Two or more races | 194 | 5.67% |
| Black or African American | 22 | 0.64% |
| Asian | 21 | 0.61% |
| Native Hawaiian or Pacific Islander | 4 | 0.12% |
Williams township 's average per capita income is $63,276. Household income levels show a median of $125,583. The poverty rate stands at 4.24%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $153,920 | - |
| Families | $150,402 | $174,905 |
| Households | $125,583 | $146,869 |
| Non Families | $39,450 | $54,133 |
Average Income
Median Household Income
Poverty Rate