Tompkins township is located in Warren County, Illinois. Tompkins township has a 2026 population of 853. Tompkins township is currently declining at a rate of -0.58% annually and its population has decreased by -4.48% since the most recent census, which recorded a population of 893 in 2020.
The median household income in Tompkins township is $80,679 with a poverty rate of 6.18%. The median age in Tompkins township is 40.2 years: 40.4 years for males, and 40 years for females. For every 100 females there are 106.5 males.
Data after 2023 is projected based on recent change
The racial composition of Tompkins township includes 96.19% White, and smaller percentages for Asian, Two or more races and multiracial populations.
White (96.19%)
Asian (2.19%)
Two or more races (1.62%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,011 | 96.19% |
| Asian | 23 | 2.19% |
| Two or more races | 17 | 1.62% |
Married
Widowed
Divorced
Separated
Never Married
Tompkins township's average per capita income is $46,037. Household income levels show a median of $80,679. The poverty rate stands at 6.18%.
Name | Median | Mean |
|---|---|---|
| Married Families | $83,750 | - |
| Families | $83,313 | $89,600 |
| Households | $80,679 | $82,148 |
| Non Families | $42,083 | $59,636 |
Average Income
Median Household Income
Poverty Rate