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 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ayr township | 1 | 1,982 | 2,032 | -0.85% | 43 | 46.3 | Township |
| Todd township | 2 | 1,608 | 1,626 | -0.5% | 56 | 28.9 | Township |
| Licking Creek township | 3 | 1,572 | 1,576 | -0.57% | 35 | 44.7 | Township |
| Bethel township | 4 | 1,546 | 1,554 | -0.58% | 42 | 37.1 | Township |
| Mercersburg | 5 | 1,492 | 1,506 | -0.27% | 1,654 | 0.9 | Borough |
| Belfast township | 6 | 1,330 | 1,362 | -0.82% | 27 | 50.1 | Township |
| Dublin township | 7 | 1,184 | 1,199 | -0.34% | 32 | 36.9 | Township |
| McConnellsburg | 8 | 1,115 | 1,149 | -0.8% | 3,213 | 0.3 | Borough |
| Taylor township | 9 | 1,045 | 1,059 | -0.57% | 32 | 32.6 | Township |
| Thompson township | 10 | 1,033 | 1,032 | -0.29% | 27 | 37.9 | Township |
| Three Springs | 11 | 432 | 443 | -0.69% | 350 | 1.2 | Borough |
| Saltillo | 12 | 304 | 314 | -0.98% | 1,206 | 0.3 | Borough |
| Shade Gap | 13 | 76 | 79 | -1.3% | 2,375 | 0.0 | Borough |
| Valley-Hi | 14 | 5 | 5 | 0% | 10 | 0.5 | Borough |
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.
Ayr township is the largest city in Fulton County.
Valley-Hi is the smallest city in Fulton County.
There are 14 cities in Fulton County, Pennsylvania.