City in Defiance County, Ohio · 12.8 sq mi · 1,330 people per sq mi
17,003 people live in Defiance. The typical household earns $61,439, and the median resident is 41.8 years old.
2026 projection
From 17,066 in 2020
Poverty rate 14.75%
Men 39.5 · Women 44.1
1850–2026
17,003
2026 projection
0.4% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1850–2026
17,003
2026 projection
0.4% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 17,003 | -6 | 0.04% |
|---|---|---|---|
| 2025 | 17,009 | -24 | 0.14% |
| 2024 | 17,033 | +31 | 0.18% |
| 2023 | 17,002 | +36 | 0.21% |
| 2022 | 16,966 | -23 | 0.14% |
| 2021 | 16,989 | -77 | 0.45% |
| 2020 | 17,066 | -14 | 0.08% |
| 2019 | 17,080 | +3 | 0.02% |
| 2018 | 17,077 | -17 | 0.10% |
| 2017 | 17,094 | +78 | 0.46% |
Showing 10 of 33 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Defiance has a population change lower than Defiance County, Ohio, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 173 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 7 residents
45% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 45% | 44% | 46% |
| Never married | 34% | 42% | 26% |
| Divorced | 14% | 10% | 18% |
| Widowed | 6% | 4% | 9% |
| Separated | 2% | 1% | 3% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources