Tiffin is a city located in Seneca County Ohio. Tiffin has a 2024 population of 17,565. It is also the county seat of Seneca County. Tiffin is currently declining at a rate of -0.57% annually and its population has decreased by -2.23% since the most recent census, which recorded a population of 17,965 in 2020.
The average household income in Tiffin is $67,079 with a poverty rate of 12.39%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Tiffin is 37 years, 34.3 years for males, and 40.1 years for females.
According to the most recent ACS, the racial composition of Tiffin was:
White
Black or African American
Two or more races
Asian
Other race
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 7,543 | 2.1 | 60.3 | 39.7 |
| Non Family | 3,652 | 1.21 | 49.4 | 50.6 |
| Married | 2,588 | 2.87 | 80.8 | 19.2 |
| Female | 976 | 3.02 | 53.8 | 46.2 |
| Male | 327 | 3.18 | 40.1 | 59.9 |
2.85
Average Family Size
2.1
Average Household Size
60.3%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among native american people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 43.7%.
All
Male
Female
$39,476
Average Earnings
$46,142
Average Male
$34,532
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
96.29% of Tiffin residents speak only English, while 3.71% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.01% of the population.
rate
12.39%
Overall Poverty Rate
12.62%
Male Poverty Rate
12.18%
Female Poverty Rate
The race most likely to be in poverty in Tiffin is Black, with 28.91% below the poverty level.
The race least likely to be in poverty in Tiffin is White, with 11.72% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.59%. Among those working part-time, it was 11.32%, and for those that did not work, the poverty rate was 22.34%.
Married
Widowed
Divorced
Separated
NeverMarried
35.8%
Overall Marriage Rate
38.9%
Male Marriage Rate
33.0%
Female Marriage Rate
male
female
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 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
8.02%
Veteran Poverty Rate
29.62%
Veteran Disability Rate
LaborForceParticipation
61.2%
Labor Force Participation
58.1%
Employment Rate
5.1%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
85.08%
Born in Tiffin
98.34%
Native Born
1.66%
Foreign Born
0.82%
Non Citizen
0.84%
Naturalized
98.34% of Tiffin residents were born in the United States, with 85.08% having been born in Ohio. 0.82% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 17,065 | -100 | -0.58% |
| 2028 | 17,165 | -100 | -0.58% |
| 2027 | 17,265 | -100 | -0.58% |
| 2026 | 17,365 | -100 | -0.57% |
| 2025 | 17,465 | -100 | -0.57% |
| 2024 | 17,565 | -100 | -0.57% |
| 2023 | 17,665 | -100 | -0.56% |
| 2022 | 17,765 | -117 | -0.65% |
| 2021 | 17,882 | -83 | -0.46% |
| 2020 | 17,965 | 423 | 2.41% |
| 2019 | 17,542 | 28 | 0.16% |
| 2018 | 17,514 | -4 | -0.02% |
| 2017 | 17,518 | 3 | 0.02% |
| 2016 | 17,515 | -93 | -0.53% |
| 2015 | 17,608 | -86 | -0.49% |
| 2014 | 17,694 | 3 | 0.02% |
| 2013 | 17,691 | -95 | -0.53% |
| 2012 | 17,786 | -108 | -0.6% |
| 2011 | 17,894 | 18 | 0.1% |
| 2010 | 17,876 | -259 | -1.43% |
| 2000 | 18,135 | -469 | -2.52% |
| 1990 | 18,604 | -945 | -4.83% |
| 1980 | 19,549 | -2,047 | -9.48% |
| 1970 | 21,596 | 118 | 0.55% |
| 1960 | 21,478 | 2,526 | 13.33% |
| 1950 | 18,952 | 2,850 | 17.7% |
| 1940 | 16,102 | -326 | -1.98% |
| 1930 | 16,428 | 2,053 | 14.28% |
| 1920 | 14,375 | 2,481 | 20.86% |
| 1910 | 11,894 | 905 | 8.24% |
| 1900 | 10,989 | 188 | 1.74% |
| 1890 | 10,801 | 2,922 | 37.09% |
| 1880 | 7,879 | 2,231 | 39.5% |
| 1870 | 5,648 | 1,656 | 41.48% |
| 1860 | 3,992 | 1,274 | 46.87% |
| 1850 | 2,718 | 0 | 0% |