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 17,360. It is also the county seat of Seneca County. Tiffin is currently declining at a rate of -0.69% annually and its population has decreased by -3.38% since the most recent census, which recorded a population of 17,967 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.

Demographics

The racial composition of Tiffin includes 89.82% White, 4% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	16,000	89.82%
Black or African American	713	4%
Two or more races	596	3.35%
Other race	247	1.39%
Asian	191	1.07%
Native American	55	0.31%
Native Hawaiian or Pacific Islander	12	0.07%

Tiffin Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Tiffin's average per capita income is $42,383. Household income levels show a median of $55,700. The poverty rate stands at 12.3%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$86,629	-
Families	$71,799	$83,773
Households	$55,700	$71,248
Non Families	$37,774	$55,106

$42,383

Average Income

$55,700

Median Household Income

12.3%

Poverty Rate