Tiffin is located in Seneca County, Ohio. Tiffin has a 2025 population of 5,328 . It is also the county seat of Seneca County . Tiffin is currently growing at a rate of 0.72% annually and its population has increased by 2.3% since the most recent census, which recorded a population of 5,208 in 2020.
The average household income in Tiffin is $60,919 with a poverty rate of 22.76%. The median age in Tiffin is 42.6 years: 38.5 years for males, and 44.4 years for females. For every 100 females there are 117.2 males.
Data after 2023 is projected based on recent change
The racial composition of Tiffin includes 96.9% White, and smaller percentages for Two or more races, Black or African American, other race and multiracial populations.
White (96.9%)
Two or more races (1.78%)
Black or African American (0.75%)
Other race (0.57%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 5,064 | 96.9% |
| Two or more races | 93 | 1.78% |
| Black or African American | 39 | 0.75% |
| Other race | 30 | 0.57% |
Married
Widowed
Divorced
Separated
Never Married
Tiffin's average per capita income is $35,383. Household income levels show a median of $38,245. The poverty rate stands at 22.76%.
Name | Median | Mean |
|---|---|---|
| Married Families | $84,605 | - |
| Families | $61,979 | $79,731 |
| Households | $38,245 | $60,919 |
| Non Families | $26,317 | $27,965 |
Average Income
Median Household Income
Poverty Rate