There are 58 zip codes in Montgomery County, Pennsylvania. The most populated is 19446, located in Lansdale. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
19446Lansdale60,659
19464Pottstown47,913
19403Norristown44,111
19401Norristown42,908
19426Collegeville42,656
19038Glenside32,672
19002Ambler31,608
19406King Of Prussia28,826
19468Royersford28,083
19454North Wales28,036
19438Harleysville24,962
19006Huntingdon Valley23,244
19040Hatboro22,137
19428Conshohocken20,321
19422Blue Bell20,050
19440Hatfield19,897
19027Elkins Park19,863
19090Willow Grove19,814
19046Jenkintown18,994
19001Abington17,830
19473Schwenksville17,522
19525Gilbertsville17,090
19044Horsham17,027
19462Plymouth Meeting15,868
18969Telford15,533
19096Wynnewood15,384
18964Souderton14,129
18073Pennsburg11,271
19444Lafayette Hill11,194
19072Narberth10,557
19004Bala Cynwyd9,971
19075Oreland7,868
19095Wyncote7,437
19034Fort Washington7,138
19025Dresher7,044
19012Cheltenham6,664
18041East Greenville5,619
19066Merion Station5,594
18074Perkiomenville5,423
19031Flourtown5,159
19405Bridgeport5,110
18054Green Lane4,960
19035Gladwyne4,149
18076Red Hill3,152
19453Mont Clare1,543
18915Colmar1,458
19009Bryn Athyn1,091
19437Gwynedd Valley968
19492Zieglerville674
19436Gwynedd486
19474Skippack386
18070Palm340
19490Worcester274
19456Oaks270
18936Montgomeryville265
19435Frederick120
19472Sassamansville60
19477Spring House44
showing: 58 rows

Montgomery County, Pennsylvania Zip Codes by Population (2024)