Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/PA/COUNTY/CHESTER

Chester County, PA ZIP codes

There are 65 ZIP codes in Chester County, PA, in 55 towns, from 19087 to 19520. The largest are 19335 (Downingtown), 19380 (West Chester) and 19320 (Coatesville).

The county seat is West Chester.

ZIP codes
65
Towns
55
County seat
West Chester
County FIPS
42029
Population
547,840
Median household income
$127,208
Land area
751 sq mi
Area codes
484, 610, 835

Chester County ZIP codes by town

West Chester (county seat)
19380, 19381, 19382, 19383

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Chester County ZIP codes

1908719301193101931119312193161931719318193201933019333193351934119343193441934519346193471934819350193511935219353193541935519357193581936019362193631936519366193671936919371193721937419375193761938019381193821938319390193951939719398193991942119425194321944219457194601946519470194751948019481194821949319494194951949619520

The ZIP codes of Chester County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Chester County in numbers

About 547,840 people live in Chester County, in 204,774 households, the 7th most populous of Pennsylvania's 67 counties. The median household income is $127,208 a year, 63% above the Pennsylvania median of $77,971 (US: $80,734). The median owner-occupied home is valued at $485,600 (91% above the Pennsylvania median), and median gross rent is $1,763 a month. The median age is 40.8; 57.1% of adults 25 and over hold a bachelor's degree or higher (35.2% across Pennsylvania); the average commute takes 27 minutes.

Population547,840Chester547,840
Households204,774Chester204,774
Median age40.8Chester40.8Pennsylvania40.9US 38.9
Median household income$127,208Chester$127,208Pennsylvania$77,971US $80,734
Median home value$485,600Chester$485,600Pennsylvania$254,500US $332,700
Median gross rent$1,763Chester$1,763Pennsylvania$1,209US $1,413
Bachelor's degree or higher57.1%Chester57.1%Pennsylvania35.2%US 35.7%
Mean commute26.9 minChester26.9 minPennsylvania26.3 minUS 26.4 min
Population density730 / sq miChester730 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Chester County

Largest towns in Chester County
TownZIP codesPopulation
Pottstown 1 23,476
West Chester 4 20,666
Phoenixville 1 19,452
Chester Springs 1 17,219
Coatesville 1 13,353
Landenberg 1 10,945
Downingtown 1 8,255
Lionville 1 7,683
Exton 1 6,772
Wayne 1 6,635
Paoli 1 6,362
Kennett Square 1 6,243
Oxford 1 5,825
Parkesburg 1 3,937
Thorndale 1 3,854

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Chester County.

Not sure you are in Chester County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Chester County, with figures

ZIP codes in Chester County
ZIP City Type Population Median income Median home
19087 Wayne , PA Standard 33,528 $171,179 $748,200
19301 Paoli , PA Standard 7,814 $167,348 $550,100
19310 Atglen , PA Standard 2,950 $82,371 $315,700
19311 Avondale , PA Standard 11,692 $155,771 $540,800
19312 Berwyn , PA Standard 12,283 $204,384 $855,000
19316 Brandamore , PA Standard 389 — —
19317 Chadds Ford , PA Standard 10,864 $174,408 $624,900
19318 Chatham , PA No street area — — —
19320 Coatesville , PA Standard 55,941 $90,601 $330,100
19330 Cochranville , PA Standard 5,957 $109,779 $387,100
19333 Devon , PA Standard 7,471 $173,107 $760,700
19335 Downingtown , PA Standard 53,629 $143,249 $494,100
19341 Exton , PA Standard 21,709 $121,680 $509,300
19343 Glenmoore , PA Standard 8,450 $160,256 $567,700
19344 Honey Brook , PA Standard 12,827 $86,890 $321,100
19345 Immaculata , PA Standard 768 — —
19346 Kelton , PA No street area — — —
19347 Kemblesville , PA No street area — — —
19348 Kennett Square , PA Standard 23,621 $123,526 $543,100
19350 Landenberg , PA Standard 10,945 $144,375 $533,000
19351 Lewisville , PA No street area — — —
19352 Lincoln University , PA Standard 11,484 $165,365 $473,200
19353 Lionville , PA No street area — — —
19354 Lyndell , PA No street area — — —
19355 Malvern , PA Standard 29,425 $169,417 $692,300
19357 Mendenhall , PA No street area — — —
19358 Modena , PA Standard 191 $71,875 $162,500
19360 New London , PA No street area — — —
19362 Nottingham , PA Standard 6,092 $89,302 $359,700
19363 Oxford , PA Standard 18,231 $107,067 $370,200
19365 Parkesburg , PA Standard 8,006 $104,728 $339,500
19366 Pocopson , PA No street area — — —
19367 Pomeroy , PA Standard 21 — —
19369 Sadsburyville , PA Standard 122 $132,730 —
19371 Suplee , PA No street area — — —
19372 Thorndale , PA Standard 1,854 $115,438 $337,000
19374 Toughkenamon , PA Standard 434 — $354,800
19375 Unionville , PA Standard 234 $250,000+ $614,400
19376 Wagontown , PA No street area — — —
19380 West Chester , PA Standard 49,856 $122,899 $564,400
19381 West Chester , PA No street area — — —
19382 West Chester , PA Standard 54,127 $132,091 $568,500
19383 West Chester , PA Standard 6,537 $23,514 —
19390 West Grove , PA Standard 12,546 $128,858 $417,900
19395 Westtown , PA No street area — — —
19397 Southeastern , PA No street area — — —
19398 Southeastern , PA No street area — — —
19399 Southeastern , PA No street area — — —
19421 Birchrunville , PA No street area — — —
19425 Chester Springs , PA Standard 17,219 $211,739 $656,700
19432 Devault , PA No street area — — —
19442 Kimberton , PA Standard 0 — —
19457 Parker Ford , PA Standard 148 — —
19460 Phoenixville , PA Standard 45,423 $124,050 $455,900
19465 Pottstown , PA Standard 18,564 $107,825 $404,500
19470 Saint Peters , PA No street area — — —
19475 Spring City , PA Standard 12,298 $97,146 $399,500
19480 Uwchland , PA No street area — — —
19481 Valley Forge , PA No street area — — —
19482 Valley Forge , PA No street area — — —
19493 Valley Forge , PA No street area — — —
19494 Valley Forge , PA No street area — — —
19495 Valley Forge , PA No street area — — —
19496 Valley Forge , PA No street area — — —
19520 Elverson , PA Standard 6,277 $100,088 $417,200

Cite this page

zipcodes.pro. “Chester County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/pa/county/chester

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