There are 21 cities in Juniata County, Pennsylvania.
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 |
|---|---|---|---|---|---|---|---|
| Fayette township | 1 | 3,280 | 3,332 | -0.3% | 83 | 39.5 | Township |
| Fermanagh township | 2 | 2,853 | 2,867 | 0.03% | 89 | 32.0 | Township |
| Walker township | 3 | 2,774 | 2,789 | -0.04% | 96 | 28.8 | Township |
| Monroe township | 4 | 2,006 | 2,045 | -0.3% | 101 | 19.9 | Township |
| Milford township | 5 | 1,954 | 1,989 | -0.51% | 49 | 40.1 | Township |
| Delaware township | 6 | 1,598 | 1,610 | -0.06% | 54 | 29.5 | Township |
| Susquehanna township | 7 | 1,203 | 1,203 | 0.84% | 73 | 16.5 | Township |
| Tuscarora township | 8 | 1,121 | 1,134 | -0.27% | 24 | 47.2 | Township |
| Liverpool | 9 | 968 | 960 | 0.21% | 1,099 | 0.9 | Borough |
| Turbett township | 10 | 947 | 976 | -0.94% | 58 | 16.4 | Township |
| Mifflintown | 11 | 811 | 838 | -0.86% | 5,793 | 0.1 | Borough |
| Beale township | 12 | 787 | 770 | 0.9% | 36 | 21.9 | Township |
| Port Royal | 13 | 786 | 812 | -0.88% | 1,306 | 0.6 | Borough |
| Spruce Hill township | 14 | 777 | 789 | 0% | 36 | 21.8 | Township |
| Millerstown | 15 | 696 | 688 | 0.29% | 824 | 0.8 | Borough |
| Thompsontown | 16 | 621 | 627 | -0.32% | 1,905 | 0.3 | Borough |
| Lack township | 17 | 620 | 635 | -0.48% | 11 | 57.0 | Township |
| Greenwood township | 18 | 549 | 537 | 0.55% | 28 | 19.5 | Township |
| Mifflin | 19 | 513 | 531 | -0.97% | 2,948 | 0.2 | Borough |
| Orbisonia | 20 | 445 | 453 | -0.45% | 4,541 | 0.1 | Borough |
| Rockhill | 21 | 367 | 377 | -0.81% | 1,261 | 0.3 | 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.
Fayette township is the largest city in Juniata County.
Rockhill is the smallest city in Juniata County.
There are 21 cities in Juniata County, Pennsylvania.