This information will guide legislative redistricting, and can affect how much federal funding local governments get.
The state’s total population in 2020 was 11.8 million, according to census data released in April. Ohio grew in the past decade, but not as fast as the rest of the country — meaning Ohio will lose one of its current 16 seats in the U.S. House of Representatives.
The latest data release breaks down Ohio’s population changes by race, ethnicity and select housing characteristics, showing populations by total and by voting age, down to individual census blocks — the smallest unit measured, bounded by physical features and legal lines.
Here’s the new populations for all of our local cities and counties:
Municipality | 2010 Census | 2020 Census | Population change | Percent Change |
---|---|---|---|---|
Montgomery County | 535,153 | 537,309 | 2,156 | 0.40% |
Brookville | 5,884 | 5,989 | 105 | 1.78% |
Centerville | 23,999 | 24,240 | 241 | 1.00% |
Clayton | 13,209 | 13,310 | 101 | 0.76% |
Dayton | 141,527 | 137,644 | -3,883 | -2.74% |
Englewood | 13,465 | 13,463 | -2 | -0.01% |
Germantown | 5,547 | 5,796 | 249 | 4.49% |
Huber Heights | 38,101 | 43,439 | 5,338 | 14.01% |
Kettering | 56,163 | 57,862 | 1,699 | 3.03% |
Miamisburg | 20,181 | 19,923 | -258 | -1.28% |
Moraine | 6,307 | 6,393 | 86 | 1.36% |
Oakwood | 9,202 | 9,572 | 370 | 4.02% |
Riverside | 25,201 | 24,474 | -727 | -2.88% |
Trotwood | 24,431 | 23,070 | -1,361 | -5.57% |
Union | 6,419 | 6,859 | 440 | 6.85% |
Vandalia | 15,246 | 15,209 | -37 | -0.24% |
West Carrollton | 13,143 | 13,129 | -14 | -0.11% |
Warren County | 212,693 | 242,337 | 29,644 | 13.94% |
Franklin | 11,771 | 11,690 | -81 | -0.69% |
Lebanon | 20,033 | 20,841 | 808 | 4.03% |
Loveland | 12,081 | 13,307 | 1,226 | 10.15% |
Mason | 30,712 | 34,792 | 4,080 | 13.28% |
Middletown | 48,694 | 50,987 | 2,293 | 4.71% |
Monroe | 12,442 | 15,412 | 2,970 | 23.87% |
Springboro | 17409 | 19062 | 1653 | 9.50% |
Greene County | 161,573 | 167,966 | 6,393 | 3.96% |
Beavercreek | 45,193 | 46,549 | 1,356 | 3.00% |
Bellbrook | 6,943 | 7,317 | 374 | 5.39% |
Fairborn | 32,352 | 34,510 | 2,158 | 6.67% |
Xenia | 25,719 | 25,441 | -278 | -1.08% |
Miami County | 102,506 | 108,774 | 6,268 | 6.11% |
Piqua | 20,522 | 20,354 | -168 | -0.82% |
Tipp City | 9,689 | 10,274 | 585 | 6.04% |
Troy | 25,058 | 26,305 | 1,247 | 4.98% |