48 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 19020 | Bensalem | 56,809 |
| 19067 | Morrisville | 53,885 |
| 18974 | Warminster | 43,122 |
| 18951 | Quakertown | 36,568 |
| 18966 | Southampton | 36,370 |
| 19047 | Langhorne | 34,563 |
| 18940 | Newtown | 29,626 |
| 18901 | Doylestown | 28,509 |
| 19053 | Feasterville Trevose | 28,509 |
| 18944 | Perkasie | 27,570 |
| 18902 | Doylestown | 22,898 |
| 18976 | Warrington | 22,202 |
| 19007 | Bristol | 21,800 |
| 18914 | Chalfont | 21,598 |
| 19057 | Levittown | 17,925 |
| 19054 | Levittown | 17,518 |
| 19056 | Levittown | 15,960 |
| 19055 | Levittown | 13,833 |
| 18938 | New Hope | 13,649 |
| 18960 | Sellersville | 13,597 |
| 19030 | Fairless Hills | 12,305 |
| 18954 | Richboro | 10,380 |
| 18929 | Jamison | 9,748 |
| 19021 | Croydon | 9,638 |
| 18947 | Pipersville | 6,477 |
| 18925 | Furlong | 6,250 |
| 18977 | Washington Crossing | 4,569 |
| 18972 | Upper Black Eddy | 3,104 |
| 18942 | Ottsville | 2,377 |
| 18917 | Dublin | 2,216 |
| 18077 | Riegelsville | 2,203 |
| 18930 | Kintnersville | 1,892 |
| 18955 | Richlandtown | 1,511 |
| 18923 | Fountainville | 984 |
| 18946 | Pineville | 689 |
| 18970 | Trumbauersville | 553 |
| 18962 | Silverdale | 531 |
| 18932 | Line Lexington | 436 |
| 18920 | Erwinna | 393 |
| 18980 | Wycombe | 308 |
| 18935 | Milford Square | 273 |
| 18950 | Point Pleasant | 262 |
| 18913 | Carversville | 243 |
| 18927 | Hilltown | 239 |
| 18912 | Buckingham | 213 |
| 18921 | Ferndale | 160 |
| 18933 | Lumberville | 105 |
| 18081 | Springtown | 85 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 48 ZCTAs in Bucks County, Pennsylvania (US Census).