Tiffin is a city located in Seneca County Ohio. It is also the county seat of Seneca County. With a 2020 population of 17,951, it is the 104th largest city in Ohio and the 2532nd largest city in the United States. Tiffin is currently declining at a rate of -0.01% annually and its population has decreased by -0.01% since the most recent census, which recorded a population of 17,953 in 2020. Spanning over 7 miles, Tiffin has a population density of 2,614 people per square mile.
The average household income in Tiffin is $55,021 with a poverty rate of 11.63%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Tiffin is 37.2 years, 34.5 years for males, and 39.9 years for females.
According to the most recent ACS, the racial composition of Tiffinwas:
2021 and 2022 population is estimated by projecting the 2019 numbers.
Rate of Home Ownership
Average Family Size
Average Household Size
The highest rate of high school graduation is among native american people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 72.40%.
94.93% of Tiffin residents speak only English, while 5.07% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.94% of the population.
Overall Poverty Rate
Male Poverty Rate
Female Poverty Rate
The race most likely to be in poverty in Tiffin is Native, with 25.00% below the poverty level.
The race least likely to be in poverty in Tiffin is Hispanic, with 3.78% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.06%. Among those working part-time, it was 12.91%, and for those that did not work, the poverty rate was 21.10%.
Overall Marriage Rate
Male Marriage Rate
Female Marriage Rate
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.
Number of Veterans
Veteran Poverty Rate
Veteran Disability Rate
Labor Force Participation
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Born in Tiffin
96.78% of Tiffin residents were born in the United States, with 84.16% having been born in Ohio. 1.95% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.