48 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 19020 | Bensalem | 57,079 |
| 19067 | Morrisville | 53,596 |
| 18974 | Warminster | 42,984 |
| 18951 | Quakertown | 36,556 |
| 18966 | Southampton | 35,994 |
| 19047 | Langhorne | 34,182 |
| 18940 | Newtown | 29,797 |
| 18901 | Doylestown | 28,477 |
| 19053 | Feasterville Trevose | 28,000 |
| 18944 | Perkasie | 27,405 |
| 18902 | Doylestown | 22,648 |
| 19007 | Bristol | 22,585 |
| 18976 | Warrington | 21,942 |
| 18914 | Chalfont | 21,371 |
| 19057 | Levittown | 17,924 |
| 19054 | Levittown | 17,597 |
| 19056 | Levittown | 15,634 |
| 19055 | Levittown | 13,734 |
| 18938 | New Hope | 13,192 |
| 19030 | Fairless Hills | 12,310 |
| 18960 | Sellersville | 12,198 |
| 18954 | Richboro | 10,864 |
| 18929 | Jamison | 9,736 |
| 19021 | Croydon | 9,713 |
| 18947 | Pipersville | 6,676 |
| 18925 | Furlong | 6,650 |
| 18977 | Washington Crossing | 4,378 |
| 18972 | Upper Black Eddy | 2,944 |
| 18942 | Ottsville | 2,498 |
| 18930 | Kintnersville | 2,218 |
| 18077 | Riegelsville | 2,195 |
| 18917 | Dublin | 2,176 |
| 18955 | Richlandtown | 1,453 |
| 18923 | Fountainville | 1,317 |
| 18970 | Trumbauersville | 733 |
| 18946 | Pineville | 629 |
| 18932 | Line Lexington | 584 |
| 18920 | Erwinna | 483 |
| 18962 | Silverdale | 450 |
| 18935 | Milford Square | 413 |
| 18913 | Carversville | 317 |
| 18927 | Hilltown | 311 |
| 18081 | Springtown | 282 |
| 18912 | Buckingham | 250 |
| 18921 | Ferndale | 177 |
| 18933 | Lumberville | 135 |
| 18950 | Point Pleasant | 128 |
| 18980 | Wycombe | 84 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 48 ZCTAs in Bucks County, Pennsylvania (US Census).