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 |
---|---|---|---|---|---|---|---|
Allentown | 1 | 124,597 | 125,727 | -0.23% | 7,094 | 17.6 | City |
Bethlehem | 2 | 79,167 | 75,699 | 1.11% | 4,142 | 19.1 | City |
Lower Macungie township | 3 | 32,517 | 32,413 | -0.02% | 1,453 | 22.4 | Township |
Upper Macungie township | 4 | 29,120 | 26,485 | 2.2% | 1,116 | 26.1 | Township |
Whitehall township | 5 | 29,098 | 29,167 | -0.04% | 2,315 | 12.6 | Township |
Bethlehem township | 6 | 26,488 | 25,882 | 0.57% | 1,836 | 14.4 | Township |
South Whitehall township | 7 | 21,528 | 21,067 | 0.58% | 1,261 | 17.1 | Township |
Upper Saucon township | 8 | 17,988 | 16,981 | 1.98% | 735 | 24.5 | Township |
North Whitehall township | 9 | 15,754 | 15,637 | 0.01% | 561 | 28.1 | Township |
Whitehall | 10 | 14,472 | 15,044 | -0.98% | 4,352 | 3.3 | Borough |
Emmaus | 11 | 12,142 | 11,641 | 1.04% | 4,194 | 2.9 | Borough |
Upper Milford township | 12 | 8,198 | 7,816 | 1.11% | 456 | 18.0 | Township |
Catasauqua | 13 | 6,454 | 6,512 | -0.23% | 4,995 | 1.3 | Borough |
Weisenberg township | 14 | 5,031 | 4,974 | 0.5% | 188 | 26.8 | Township |
Fountain Hill | 15 | 4,789 | 4,824 | -0.19% | 6,516 | 0.7 | Borough |
Lynn township | 16 | 4,249 | 4,236 | 0.09% | 103 | 41.3 | Township |
Slatington | 17 | 4,240 | 4,279 | -0.24% | 3,210 | 1.3 | Borough |
Lower Milford township | 18 | 3,836 | 3,858 | -0.13% | 195 | 19.7 | Township |
Coplay | 19 | 3,544 | 3,342 | 1.43% | 5,810 | 0.6 | Borough |
Heidelberg township | 20 | 3,336 | 3,326 | 0.03% | 135 | 24.6 | Township |
Macungie | 21 | 3,265 | 3,255 | 0.06% | 3,301 | 1.0 | Borough |
North Catasauqua | 22 | 3,030 | 2,970 | 0.5% | 4,220 | 0.7 | Borough |
Freemansburg | 23 | 2,902 | 2,869 | 0.28% | 4,164 | 0.7 | Borough |
Alburtis | 24 | 2,572 | 2,591 | -0.19% | 3,638 | 0.7 | Borough |
Coopersburg | 25 | 2,495 | 2,458 | 0.36% | 2,674 | 0.9 | Borough |
Lowhill township | 26 | 2,326 | 2,288 | 0.61% | 166 | 14.0 | 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.
Allentown is the largest city in Lehigh County.
Lowhill township is the smallest city in Lehigh County.
There are 26 cities in Lehigh County, Pennsylvania.