There are 36 cities in Miami County, Ohio.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Dayton | 1 | 134,850 | 137,496 | -0.49% | 2,416 | 55.8 | City |
| Huber Heights | 2 | 43,269 | 43,444 | -0.1% | 1,949 | 22.2 | City |
| Troy | 3 | 27,005 | 26,375 | 0.58% | 2,198 | 12.3 | City |
| Riverside | 4 | 24,296 | 24,472 | -0.18% | 2,498 | 9.7 | City |
| Trotwood | 5 | 22,894 | 23,076 | -0.2% | 751 | 30.5 | City |
| Piqua | 6 | 20,860 | 20,408 | 0.55% | 1,609 | 13.0 | City |
| Vandalia | 7 | 14,852 | 15,194 | -0.58% | 1,203 | 12.3 | City |
| Clayton | 8 | 13,194 | 13,304 | -0.21% | 713 | 18.5 | City |
| Englewood | 9 | 13,174 | 13,473 | -0.57% | 2,008 | 6.6 | City |
| Tipp City | 10 | 10,546 | 10,297 | 0.59% | 1,313 | 8.0 | City |
| Union | 11 | 6,976 | 6,867 | 0.39% | 840 | 8.3 | City |
| Brookville | 12 | 5,893 | 5,991 | -0.42% | 1,502 | 3.9 | City |
| New Carlisle | 13 | 5,472 | 5,559 | -0.4% | 2,040 | 2.7 | City |
| West Milton | 14 | 4,837 | 4,708 | 0.67% | 1,426 | 3.4 | Village |
| Park Layne | 15 | 3,912 | 4,420 | -0.79% | 2,672 | 1.5 | CDP |
| Covington | 16 | 2,612 | 2,554 | 0.54% | 1,905 | 1.4 | Village |
| Arcanum | 17 | 2,320 | 2,352 | -0.34% | 1,824 | 1.3 | Village |
| Bradford | 18 | 1,798 | 1,792 | 0.06% | 2,156 | 0.8 | Village |
| Crystal Lakes | 19 | 1,625 | 1,478 | 0.62% | 3,378 | 0.5 | CDP |
| Wright-Patterson AFB | 20 | 1,510 | 2,414 | -1.44% | 153 | 9.9 | CDP |
| Pleasant Hill | 21 | 1,264 | 1,235 | 0.56% | 2,010 | 0.6 | Village |
| Christiansburg | 22 | 499 | 507 | -0.4% | 2,097 | 0.2 | Village |
| Fletcher | 23 | 459 | 453 | 0.22% | 1,476 | 0.3 | Village |
| Gettysburg | 24 | 459 | 465 | -0.43% | 1,048 | 0.4 | Village |
| Laura | 25 | 412 | 399 | 0.73% | 1,537 | 0.3 | Village |
| Pitsburg | 26 | 378 | 385 | -0.53% | 2,237 | 0.2 | Village |
| Rosewood | 27 | 284 | 311 | 0.71% | 210 | 1.4 | CDP |
| Casstown | 28 | 272 | 266 | 0.37% | 2,804 | 0.1 | Village |
| Donnelsville | 29 | 253 | 259 | -0.78% | 796 | 0.3 | Village |
| Brandt | 30 | 251 | 383 | 7.72% | 259 | 1.0 | CDP |
| Gordon | 31 | 237 | 241 | -0.42% | 1,436 | 0.2 | Village |
| Potsdam | 32 | 221 | 224 | -0.45% | 496 | 0.4 | Village |
| Ludlow Falls | 33 | 177 | 173 | 0.57% | 989 | 0.2 | Village |
| Lockington | 34 | 156 | 160 | -0.64% | 1,857 | 0.1 | Village |
| Castine | 35 | 106 | 108 | -0.94% | 1,395 | 0.1 | Village |
| Ithaca | 36 | 84 | 86 | -1.18% | 2,710 | 0.0 | Village |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Dayton is the largest city in Miami County.
Ithaca is the smallest city in Miami County.
There are 36 cities in Miami County, Ohio.