Tiffin, Ohio Demographics & Population 2026
During the 2020–2024 ACS period, Tiffin, Ohio had a total population of 17,818, the 105th largest city in Ohio, with a median household income of $56,198, which is 21% lower than the state average. The poverty rate is 14.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Tiffin Quick Facts
How Tiffin Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 17,814 | 17,818 | +0.0% |
| Median household income | $55,700 | $56,198 | +0.9% |
| Median home value | $129,200 | $142,200 | +10.1% |
How Tiffin Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 41 | National average: 61
Education
Educational Attainment (Adults 25+)
Tiffin Rankings in Ohio
Explore Ohio Rankings
Other Cities in Seneca County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Attica | 755 | $69,063 | 10.2% | $113,800 |
| Bloomville | 721 | $69,000 | 17.0% | $96,800 |
| Bettsville | 562 | $65,417 | 14.7% | $99,900 |
| Republic | 456 | $63,125 | 10.3% | $85,000 |
| McCutchenville | 346 | $83,393 | 0.0% | $154,200 |
| Flat Rock | 340 | N/A | 24.7% | $92,500 |
| New Riegel | 316 | $63,750 | 15.2% | $119,000 |
| Bascom | 298 | $90,592 | 0.0% | $145,500 |
| Kansas | 200 | $53,144 | 40.0% | $73,800 |
| Fort Seneca | 113 | $39,375 | 0.0% | $204,700 |
Cities Similar to Tiffin
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| New Philadelphia | 17,520 | $58,547 | $169,500 | 24.4% | 15.9% |
| Mount Vernon | 17,052 | $53,845 | $174,000 | 23.5% | 21.9% |
| Eastlake | 17,493 | $62,072 | $172,100 | 21.7% | 8.4% |
| Niles | 18,287 | $50,953 | $116,300 | 21.3% | 16.2% |
| Defiance | 17,276 | $61,439 | $139,900 | 21.1% | 14.8% |
Population Overview
Tiffin is a small city located in Ohio, within Seneca County. The total population is 17,818. It ranks as the 105th most populous out of 1,264 Census-designated places in Ohio.
Age Demographics
The median age in Tiffin is 34.1 years. This is 14% lower than the state median of 39.7 years.
Economy, Income & Housing
The median household income in Tiffin is $56,198. This is 21% lower than the state median of $71,389. It is also 30% lower than the national median of $80,734. The poverty rate stands at 14.8%. This is 11% higher than the state poverty rate of 13.3%. The unemployment rate is 3.8%. This is 21% lower than the state rate of 4.8%. The median home value is $142,200. Housing costs are 34% lower than the state median of $214,800. With a home-value-to-income ratio of just 2.5x, Tiffin is one of the most affordable housing markets in the area. 58.9% of occupied housing units are owner-occupied. This homeownership rate is 12% lower than the state average of 67.2%.
Race & Ethnicity
Tiffin has a predominantly White (non-Hispanic) population, comprising 86.8% of all residents. Hispanic or Latino residents account for 5.1%. The Black or African American population (3.5%) is well below the state average of 12.0%. The Asian population (1.0%) is well below the state average of 2.5%.
Education
27.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 13% lower than the state rate of 31.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.9%.
Data Sources & Methodology
All demographic data for Tiffin, Ohio is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Ohio state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,264 Census-designated places in Ohio. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Tiffin, Ohio?
Tiffin, Ohio has a population of 17,818 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Tiffin, OH?
The median household income in Tiffin is $56,198, which is 30% lower than the national median of $80,734.
What is the poverty rate in Tiffin, OH?
The poverty rate in Tiffin is 14.8%. This means approximately 2,345 residents live below the federal poverty line.
What is the racial makeup of Tiffin, Ohio?
Tiffin's population is 86.8% White, 3.5% Black, 5.1% Hispanic/Latino, and 1.0% Asian.
What is the median home value in Tiffin, OH?
The median home value in Tiffin is $142,200. The home-value-to-income ratio is 2.5x.
How educated is Tiffin, Ohio?
27.4% of adults (25+) in Tiffin hold a bachelor's degree or higher, and 10.5% hold a graduate or professional degree.