58 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 19446 | Lansdale | 61,608 |
| 19464 | Pottstown | 48,084 |
| 19403 | Norristown | 43,967 |
| 19426 | Collegeville | 43,284 |
| 19401 | Norristown | 43,099 |
| 19038 | Glenside | 32,157 |
| 19002 | Ambler | 31,681 |
| 19406 | King Of Prussia | 29,388 |
| 19454 | North Wales | 28,141 |
| 19468 | Royersford | 28,050 |
| 19438 | Harleysville | 25,184 |
| 19006 | Huntingdon Valley | 23,211 |
| 19040 | Hatboro | 21,866 |
| 19027 | Elkins Park | 20,412 |
| 19428 | Conshohocken | 20,225 |
| 19422 | Blue Bell | 20,068 |
| 19090 | Willow Grove | 19,926 |
| 19440 | Hatfield | 19,650 |
| 19046 | Jenkintown | 19,143 |
| 19525 | Gilbertsville | 17,859 |
| 19473 | Schwenksville | 17,731 |
| 19001 | Abington | 17,601 |
| 19044 | Horsham | 17,134 |
| 19462 | Plymouth Meeting | 16,215 |
| 18969 | Telford | 15,229 |
| 19096 | Wynnewood | 15,136 |
| 18964 | Souderton | 14,422 |
| 18073 | Pennsburg | 11,534 |
| 19444 | Lafayette Hill | 11,070 |
| 19004 | Bala Cynwyd | 10,439 |
| 19072 | Narberth | 10,352 |
| 19075 | Oreland | 7,779 |
| 19095 | Wyncote | 7,759 |
| 19025 | Dresher | 7,417 |
| 19034 | Fort Washington | 7,084 |
| 19012 | Cheltenham | 6,787 |
| 19066 | Merion Station | 5,893 |
| 18041 | East Greenville | 5,665 |
| 18074 | Perkiomenville | 5,394 |
| 19405 | Bridgeport | 5,167 |
| 19031 | Flourtown | 5,166 |
| 18054 | Green Lane | 4,714 |
| 19035 | Gladwyne | 3,779 |
| 18076 | Red Hill | 3,013 |
| 18915 | Colmar | 1,791 |
| 19453 | Mont Clare | 1,421 |
| 19009 | Bryn Athyn | 1,153 |
| 19492 | Zieglerville | 766 |
| 19437 | Gwynedd Valley | 625 |
| 19436 | Gwynedd | 544 |
| 19490 | Worcester | 433 |
| 18936 | Montgomeryville | 288 |
| 18070 | Palm | 286 |
| 19474 | Skippack | 286 |
| 19456 | Oaks | 192 |
| 19477 | Spring House | 85 |
| 19435 | Frederick | 82 |
| 19472 | Sassamansville | 55 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 58 ZCTAs in Montgomery County, Pennsylvania (US Census).