Viola township is located in Mercer County, Illinois. Viola township has a 2026 population of 302. Viola township is currently declining at a rate of -0.33% annually and its population has decreased by -0.98% since the most recent census, which recorded a population of 305 in 2020.
The median household income in Viola township is $80,781 with a poverty rate of 13.68%. The median age in Viola township is 29 years: 29.3 years for males, and 26.9 years for females. For every 100 females there are 95.4 males.
Data after 2023 is projected based on recent change
The racial composition of Viola township includes 97.17% White, and smaller percentages for other race and multiracial populations.
White (97.17%)
Other race (2.83%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 412 | 97.17% |
| Other race | 12 | 2.83% |
Married
Widowed
Divorced
Separated
Never Married
Viola township's average per capita income is $51,250. Household income levels show a median of $80,781. The poverty rate stands at 13.68%.
Name | Median | Mean |
|---|---|---|
| Married Families | $84,196 | - |
| Families | $83,036 | $112,735 |
| Households | $80,781 | $113,805 |
| Non Families | - | $94,963 |
Average Income
Median Household Income
Poverty Rate