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 |
|---|---|---|---|---|---|---|---|
| Selinsgrove | 1 | 5,512 | 5,712 | -0.9% | 3,012 | 1.8 | Borough |
| Monroe township | 2 | 4,233 | 4,149 | 1.12% | 272 | 15.5 | Township |
| Center township | 3 | 2,436 | 2,415 | 0.29% | 116 | 21.0 | Township |
| Middlecreek township | 4 | 2,063 | 2,056 | 0.39% | 143 | 14.4 | Township |
| Perry township | 5 | 2,058 | 2,064 | 0.24% | 78 | 26.3 | Township |
| Spring township | 6 | 1,638 | 1,637 | 0.37% | 44 | 37.1 | Township |
| Shamokin Dam | 7 | 1,635 | 1,649 | -0.24% | 886 | 1.8 | Borough |
| Chapman township | 8 | 1,590 | 1,565 | 0.44% | 117 | 13.5 | Township |
| Union township | 9 | 1,527 | 1,500 | 0.66% | 104 | 14.6 | Township |
| Middleburg | 10 | 1,315 | 1,325 | -0.23% | 1,489 | 0.9 | Borough |
| West Beaver township | 11 | 1,143 | 1,129 | 0.7% | 42 | 27.5 | Township |
| West Perry township | 12 | 1,083 | 1,084 | 0.28% | 40 | 27.0 | Township |
| Beavertown | 13 | 991 | 999 | -0.2% | 1,292 | 0.8 | Borough |
| Freeburg | 14 | 557 | 559 | -0.18% | 1,746 | 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.
Selinsgrove is the largest city in Snyder County.
Freeburg is the smallest city in Snyder County.
There are 14 cities in Snyder County, Pennsylvania.