Tiffin Flag

Tiffin

County:
Seneca County
County Seat:
Yes
Area (mi²):
7.234
State:
Ohio

Tiffin is a city located in Seneca County, Ohio. Tiffin has a 2025 population of 17,652 . It is also the county seat of Seneca County . Tiffin is currently declining at a rate of -0.43% annually and its population has decreased by -2.12% since the most recent census, which recorded a population of 18,034 in 2020.

The average household income in Tiffin is $71,248 with a poverty rate of 12.3%. The median age in Tiffin is 36.7 years: 34.6 years for males, and 38.7 years for females. For every 100 females there are 95.1 males.

17.7K
Total Population
2,440
Density (mi²)
-77 -0.43%
Growth

Tiffin Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)