There are 30 cities in Lebanon 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 |
|---|---|---|---|---|---|---|---|
| Lebanon | 1 | 26,239 | 26,794 | -0.53% | 6,297 | 4.2 | City |
| North Lebanon township | 2 | 12,146 | 12,049 | 0.33% | 725 | 16.8 | Township |
| South Lebanon township | 3 | 10,613 | 10,423 | 0.56% | 489 | 21.7 | Township |
| North Cornwall township | 4 | 9,725 | 8,509 | 3.1% | 1,024 | 9.5 | Township |
| Jackson township | 5 | 9,262 | 9,335 | -0.18% | 385 | 24.1 | Township |
| North Londonderry township | 6 | 8,980 | 8,917 | 0.3% | 836 | 10.7 | Township |
| South Londonderry township | 7 | 8,780 | 8,786 | -0.17% | 361 | 24.4 | Township |
| Palmyra | 8 | 7,662 | 7,821 | -0.52% | 3,984 | 1.9 | Borough |
| Bethel township | 9 | 5,375 | 5,135 | -0.09% | 155 | 34.6 | Township |
| Swatara township | 10 | 5,008 | 5,059 | -0.28% | 232 | 21.6 | Township |
| Manheim | 11 | 4,980 | 5,036 | -0.28% | 3,603 | 1.4 | Borough |
| Annville township | 12 | 4,962 | 4,755 | 0.24% | 3,059 | 1.6 | Township |
| Cornwall | 13 | 4,626 | 4,609 | 0.09% | 477 | 9.7 | Borough |
| East Petersburg | 14 | 4,571 | 4,569 | 0% | 3,784 | 1.2 | Borough |
| Millcreek township | 15 | 4,396 | 4,366 | 0.27% | 215 | 20.4 | Township |
| Heidelberg township | 16 | 4,030 | 4,100 | -0.25% | 166 | 24.2 | Township |
| South Annville township | 17 | 3,458 | 3,438 | 0.26% | 178 | 19.5 | Township |
| Myerstown | 18 | 3,113 | 3,097 | 0.13% | 3,637 | 0.9 | Borough |
| Union township | 19 | 2,888 | 2,932 | -0.28% | 97 | 29.6 | Township |
| East Hanover township | 20 | 2,678 | 2,657 | 0.3% | 83 | 32.5 | Township |
| North Annville township | 21 | 2,284 | 2,277 | 0.18% | 132 | 17.3 | Township |
| Robesonia | 22 | 2,175 | 2,031 | 1.68% | 2,441 | 0.9 | Borough |
| Pine Grove | 23 | 2,065 | 2,049 | 0.19% | 1,939 | 1.1 | Borough |
| Cleona | 24 | 2,022 | 2,013 | 0.1% | 2,424 | 0.8 | Borough |
| West Cornwall township | 25 | 2,002 | 1,995 | 0.2% | 232 | 8.6 | Township |
| Jonestown | 26 | 1,648 | 1,636 | 0.18% | 2,599 | 0.6 | Borough |
| Richland | 27 | 1,504 | 1,496 | 0.13% | 1,086 | 1.4 | Borough |
| West Lebanon township | 28 | 841 | 833 | 0.48% | 2,173 | 0.4 | Township |
| Mount Gretna | 29 | 188 | 187 | 0% | 1,306 | 0.1 | Borough |
| Cold Spring township | 30 | 62 | 59 | 3.33% | 2 | 24.8 | Township |
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.
Lebanon is the largest city in Lebanon County.
Cold Spring township is the smallest city in Lebanon County.
There are 30 cities in Lebanon County, Pennsylvania.