Village in Allen County, Ohio · 0.3 sq mi · 1,819 people per sq mi
504 people live in Cairo. The typical household earns $83,125, and the median resident is 35.9 years old.
2026 projection
From 517 in 2020
Poverty rate 6.88%
Men 32.9 · Women 46.5
2010–2026
504
2026 projection
2.5% 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.
2010–2026
504
2026 projection
2.5% 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 | 504 | -3 | 0.59% |
|---|---|---|---|
| 2025 | 507 | -1 | 0.20% |
| 2024 | 508 | +1 | 0.20% |
| 2023 | 507 | -1 | 0.20% |
| 2022 | 508 | -6 | 1.17% |
| 2021 | 514 | -3 | 0.58% |
| 2020 | 517 | -2 | 0.39% |
| 2019 | 519 | -4 | 0.76% |
| 2018 | 523 | -1 | 0.19% |
| 2017 | 524 | -7 | 1.32% |
Showing 10 of 17 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.
Cairo has a population change lower than Allen 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 6 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 15 residents
52% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 52% | 50% | 54% |
| Never married | 31% | 38% | 23% |
| Divorced | 11% | 5% | 18% |
| Widowed | 3% | 2% | 5% |
| Separated | 2% | 5% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources