| ZIP Codes: | 62 ZIP Codes (28 Standard, 29 PO Box, 5 Unique) [See All] |
| Area Codes: | 484 / 610 / 835 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:30 PM |
| Population: | 535,535 [See All] |
| FIPS: | 42029 |
| CBSA: | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| Land Area: | 762 sq mi |
| Water Area: | 9 sq mi |
| Coordinates: | 39.9976, -75.6800 |
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535,535 residents live across 62 ZIPs covering 762 sq mi, served by 52 distinct USPS-recognized cities.
Population moved from 494,933 to 535,413 from 2014 to 2024 — a +8.2% change. 24 ZIPs gained residents, 11 lost (and 1 held flat).
The county's wealthiest ZIP 19425 (Chester Springs, $211,739 median) and poorest ZIP 19383 (West Chester, $23,514) are 11.7 miles apart — a 9.0× income gap across local geography.
Median home values vary 2.7× across this county — from $315,700 in 19310 (Atglen) to $855,000 in 19312 (Berwyn).
Density varies 148× across the county — from 164 people/sq mi in 19520 (Elverson) to 24,328 in 19383 (West Chester).
Educational attainment ranges from 22.5% bachelor's+ in 19362 (Nottingham) to 82.1% in 19333 (Devon) — the breadth of educational profiles across the area.
Within Pennsylvania, this is the #7 most populous of 67 counties and ranks #2 for median household income with the #2 fastest decade growth .
On the national stage, Chester County is ranks #53 for income .
Hosts 4 single-entity Unique ZIPs: 19383West Chester University ; 19495Providian Agon ; 19496The Vanguard Group ; and 19494Providian Agon .
Weighted by population, the typical household earns about $129,010 across the county — reflecting what a typical resident sees, not a simple ZIP average.
56.1% of adults age 25+ hold a bachelor's degree or higher (206,751 of 368,334 reporting).
28 Standard delivery, 29 PO Box only, 5 single-entity Unique ZIPs serve this county.
11 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
5 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
Median household income spans 9.0× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 19320 | Coatesville | Standard | 55,941 | $90,601 | 83.6 | 3.7% |
| 19382 | West Chester | Standard | 54,127 | $132,091 | 47.2 | 0.0% |
| 19335 | Downingtown | Standard | 53,629 | $143,249 | 44.0 | 14.6% |
| 19380 | West Chester | Standard | 49,856 | $122,899 | 30.7 | -0.9% |
| 19460 | Phoenixville | Standard | 45,423 | $124,050 | 35.7 | 11.7% |
| 19355 | Malvern | Standard | 29,425 | $169,417 | 38.1 | 19.8% |
| 19348 | Kennett Square | Standard | 23,621 | $123,526 | 36.0 | 7.2% |
| 19341 | Exton | Standard | 21,709 | $121,680 | 14.3 | 27.8% |
| 19465 | Pottstown | Standard | 18,564 | $107,825 | 35.6 | 8.0% |
| 19363 | Oxford | Standard | 18,231 | $107,067 | 50.8 | 7.5% |
| 19425 | Chester Springs | Standard | 17,219 | $211,739 | 27.8 | 19.0% |
| 19344 | Honey Brook | Standard | 12,827 | $86,890 | 34.3 | 6.2% |
| 19390 | West Grove | Standard | 12,546 | $128,858 | 29.7 | -7.7% |
| 19475 | Spring City | Standard | 12,298 | $97,146 | 17.3 | 7.1% |
| 19312 | Berwyn | Standard | 12,283 | $204,384 | 9.6 | 4.5% |
| 19311 | Avondale | Standard | 11,692 | $155,771 | 12.3 | 23.5% |
| 19352 | Lincoln University | Standard | 11,484 | $165,365 | 17.6 | 6.2% |
| 19350 | Landenberg | Standard | 10,945 | $144,375 | 28.2 | -4.5% |
| 19343 | Glenmoore | Standard | 8,450 | $160,256 | 28.1 | -0.5% |
| 19365 | Parkesburg | Standard | 8,006 | $104,728 | 16.9 | 17.0% |
| 19301 | Paoli | Standard | 7,814 | $167,348 | 3.7 | 20.3% |
| 19333 | Devon | Standard | 7,471 | $173,107 | 3.6 | 12.4% |
| 19383 | West Chester | Unique | 6,537 | $23,514 | 0.3 | 117.4% |
| 19520 | Elverson | Standard | 6,277 | $100,088 | 38.2 | 13.6% |
| 19362 | Nottingham | Standard | 6,092 | $89,302 | 29.4 | -5.3% |
| 19330 | Cochranville | Standard | 5,957 | $109,779 | 33.1 | 11.9% |
| 19310 | Atglen | Standard | 2,950 | $82,371 | 13.7 | -9.6% |
| 19372 | Thorndale | Standard | 1,854 | $115,438 | 0.9 | 31.9% |
| 19345 | Immaculata | PO Box | 768 | — | 0.0 | 4.3% |
| 19374 | Toughkenamon | Standard | 434 | — | 1.6 | -62.5% |
| 19316 | Brandamore | PO Box | 389 | — | 0.0 | 235.3% |
| 19375 | Unionville | PO Box | 234 | $250,001 | 0.0 | 169.0% |
| 19358 | Modena | PO Box | 191 | $71,875 | 0.0 | -61.5% |
| 19457 | Parker Ford | PO Box | 148 | — | 0.0 | -14.0% |
| 19369 | Sadsburyville | PO Box | 122 | $132,730 | 0.0 | — |
| 19367 | Pomeroy | PO Box | 21 | — | 0.0 | -50.0% |
| 19442 | Kimberton | PO Box | 0 | — | 0.0 | — |
| 19421 | Birchrunville | PO Box | — | — | 0.0 | — |
| 19481 | Valley Forge | PO Box | — | — | 0.0 | — |
| 19480 | Uwchland | PO Box | — | — | 0.0 | — |
| 19482 | Valley Forge | PO Box | — | — | 0.0 | — |
| 19354 | Lyndell | PO Box | — | — | 0.0 | — |
| 19397 | Southeastern | PO Box | — | — | 0.0 | — |
| 19398 | Southeastern | PO Box | — | — | 0.0 | — |
| 19399 | Southeastern | PO Box | — | — | 0.0 | — |
| 19432 | Devault | PO Box | — | — | 0.0 | — |
| 19470 | Saint Peters | PO Box | — | — | 0.0 | — |
| 19495 | Valley Forge | Unique | — | — | 0.0 | — |
| 19496 | Valley Forge | Unique | — | — | 0.0 | — |
| 19494 | Valley Forge | Unique | — | — | 0.0 | — |
| 19493 | Valley Forge | Unique | — | — | 0.0 | — |
| 19395 | Westtown | PO Box | — | — | 0.0 | — |
| 19376 | Wagontown | PO Box | — | — | 0.0 | — |
| 19381 | West Chester | PO Box | — | — | 0.0 | — |
| 19353 | Lionville | PO Box | — | — | 0.0 | — |
| 19366 | Pocopson | PO Box | — | — | 0.0 | — |
| 19318 | Chatham | PO Box | — | — | 0.0 | — |
| 19357 | Mendenhall | PO Box | — | — | 0.0 | — |
| 19346 | Kelton | PO Box | — | — | 0.0 | — |
| 19360 | New London | PO Box | — | — | 0.0 | — |
| 19351 | Lewisville | PO Box | — | — | 0.0 | — |
| 19347 | Kemblesville | PO Box | — | — | 0.0 | — |