Data Last Updated: July 1, 2025

Chester County, PA ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Chester, PA.	70 ZIP Codes (28 General, 29 PO Box, 5 Unique, & 8 Multi County) [More Details]
Area Codes: The Telephone Area Codes that are associated with Chester, PA. Area Codes are used in the North American Numbering Plan (NANP) to facilitate phone routing. There are approximately 350 area codes in use in the United States.	484, 610, 835
Timezone: Time zone designation within the U.S. Please note that not all areas in the U.S. observe daylight saving time which can affect actual local time for this city. There are 7 standard time zones which are, from west to east: Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern, Atlantic. Also included in U.S. Territories are Samoa, Guam and Palau.	Eastern
Local Time: The current local time for each timezone. If more than 1 time zone for this area, all local times will be shown. Counties can cross timezones, so more than 1 may be shown.	12:00:00 AM
Population: The population of Chester, PA from the U.S. Census 2020. Included are U.S. Citizens, permanent residents, temporary migrants, and undocumented individuals. The total population represents people who live in the city, not just those present while the Census was being completed.	534,413 [More Details]
FIPS: FIPS stands for Federal Information Processing Standards, which are a set of publicly announced standards for computer systems. A county FIPS code is a unique numeric identifier for a county in the United States, assigned by the National Institute of Standards and Technology (NIST). County FIPS codes have five digits, with the first two digits identifying the state and the last 3 indicating the county.	42029
CBSA: A Core Based Statistical Area (CBSA) is the recognized term for a region that functions around an urban core with a population of at least 10,000 people, according to the standards set by the Office of Management and Budget (OMB) in 2000. A CBSA is divided into two subsets: Metro and Micro, and these classifications are determined by population density. A Micro area is identified by a population ranging between 10,000 to 50,000, while a Metro area is defined as having a population that exceeds 50,000.	Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
Land Area: The approximate amount of land area covered by Chester, PA in square miles. The Land Area provided by the Census Bureau is based on geographic boundaries that include the mainland, islands, inland, coastal, Great Lakes, and territorial waters associated with each city.	751 square miles
Water Area: The approximate amount of water area covered by Chester, PA in square miles. Calculations by the Census Bureau for Water Area take into account inland bodies of water, coastal regions, Great Lakes, and territorial sea waters. This encompasses features such as lakes, reservoirs, rivers, and coastal water bodies.	9 square miles
Coordinates: The latitude/longitude centroid coordinates for Chester County, PA.	-75.748415, 39.973087
Quick Link: Copy the direct link to the Chester, PACounty page and use anywhere you like!	https://www.zip-codes.com/county/pa-chester.asp

Chester, PA ZIP Code Boundaries

Download ZIP Code Database

Load Chester County, PA Map

Chester County, PA Covers 70 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 17527 *	General	Gap	6,550	--
ZIP Code 17555 *	General	Narvon	7,464	--
ZIP Code 19073 *	General	Newtown Square	20,853	--
ZIP Code 19087 *	General	Wayne	33,501	--
ZIP Code 19301	General	Paoli	7,542	1.41%
ZIP Code 19310	General	Atglen	2,898	0.54%
ZIP Code 19311	General	Avondale	9,556	1.79%
ZIP Code 19312	General	Berwyn	11,848	2.22%
ZIP Code 19316	P.O. Box	Brandamore	166	0.03%
ZIP Code 19317 *	General	Chadds Ford	10,714	--
ZIP Code 19318	P.O. Box	Chatham	0	0.00%
ZIP Code 19319 *	General	Cheyney	824	--
ZIP Code 19320	General	Coatesville	54,149	10.13%
ZIP Code 19330	General	Cochranville	5,705	1.07%
ZIP Code 19333	General	Devon	7,734	1.45%
ZIP Code 19335	General	Downingtown	52,406	9.81%
ZIP Code 19341	General	Exton	18,808	3.52%
ZIP Code 19342 *	General	Glen Mills	20,550	--
ZIP Code 19343	General	Glenmoore	8,711	1.63%
ZIP Code 19344	General	Honey Brook	12,869	2.41%
ZIP Code 19345	P.O. Box	Immaculata	788	0.15%
ZIP Code 19346	P.O. Box	Kelton	0	0.00%
ZIP Code 19347	P.O. Box	Kemblesville	0	0.00%
ZIP Code 19348	General	Kennett Square	22,606	4.23%
ZIP Code 19350	General	Landenberg	11,030	2.06%
ZIP Code 19351	P.O. Box	Lewisville	0	0.00%
ZIP Code 19352	General	Lincoln University	10,495	1.96%
ZIP Code 19353	P.O. Box	Lionville	0	0.00%
ZIP Code 19354	P.O. Box	Lyndell	0	0.00%
ZIP Code 19355	General	Malvern	29,273	5.48%
ZIP Code 19357	P.O. Box	Mendenhall	0	0.00%
ZIP Code 19358	P.O. Box	Modena	318	0.06%
ZIP Code 19360	P.O. Box	New London	0	0.00%
ZIP Code 19362	General	Nottingham	5,888	1.10%
ZIP Code 19363	General	Oxford	18,104	3.39%
ZIP Code 19365	General	Parkesburg	7,410	1.39%
ZIP Code 19366	P.O. Box	Pocopson	0	0.00%
ZIP Code 19367	P.O. Box	Pomeroy	188	0.04%
ZIP Code 19369	P.O. Box	Sadsburyville	252	0.05%
ZIP Code 19372	General	Thorndale	2,348	0.44%
ZIP Code 19374	General	Toughkenamon	988	0.18%
ZIP Code 19375	P.O. Box	Unionville	212	0.04%
ZIP Code 19376	P.O. Box	Wagontown	0	0.00%
ZIP Code 19380	General	West Chester	50,692	9.49%
ZIP Code 19381	P.O. Box	West Chester	0	0.00%
ZIP Code 19382	General	West Chester	52,498	9.82%
ZIP Code 19383	Unique	West Chester	5,053	0.95%
ZIP Code 19390	General	West Grove	14,101	2.64%
ZIP Code 19395	P.O. Box	Westtown	0	0.00%
ZIP Code 19397	P.O. Box	Southeastern	0	0.00%
ZIP Code 19398	P.O. Box	Southeastern	0	0.00%
ZIP Code 19399	P.O. Box	Southeastern	0	0.00%
ZIP Code 19421	P.O. Box	Birchrunville	0	0.00%
ZIP Code 19425	General	Chester Springs	16,352	3.06%
ZIP Code 19432	P.O. Box	Devault	0	0.00%
ZIP Code 19442	P.O. Box	Kimberton	61	0.01%
ZIP Code 19457	P.O. Box	Parker Ford	103	0.02%
ZIP Code 19460	General	Phoenixville	43,611	8.16%
ZIP Code 19465	General	Pottstown	18,217	3.41%
ZIP Code 19470	P.O. Box	Saint Peters	0	0.00%
ZIP Code 19475	General	Spring City	12,028	2.25%
ZIP Code 19480	P.O. Box	Uwchland	0	0.00%
ZIP Code 19481	P.O. Box	Valley Forge	0	0.00%
ZIP Code 19482	P.O. Box	Valley Forge	0	0.00%
ZIP Code 19493	Unique	Valley Forge	0	0.00%
ZIP Code 19494	Unique	Valley Forge	0	0.00%
ZIP Code 19495	Unique	Valley Forge	0	0.00%
ZIP Code 19496	Unique	Valley Forge	0	0.00%
ZIP Code 19520	General	Elverson	5,932	1.11%
ZIP Code 19543 *	General	Morgantown	6,256	--

* Indicates a Multi County ZIP Code. These ZIP Codes partially cross over into Chester, PA, but will mostly cover area in a different County. Not included in % of Population calculations.

Important Chester, PA Information

Chester County, PA Covers 70 ZIP Codes. This includes 28 General ZIP Codes, 29 PO Box ZIP Codes, and 5 Unique (reserved for Business and Volume Mail Receivers). There are also 8 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Chester County.

The population for Chester County is 534,413, according to the U.S. Census. Population Density is 711.60 persons per square mile. With 208,240 Housing Units, the Average Household Size is 2.64 persons. There are 197,119 Family Households with an Average Family Size of 2.80 persons. 3.91% of the population is without Health Insurance. The 65.47% Employment Rate is 5.67% above the national average of 59.8%.371,656 people aged 25+ have some educational achievement, with 56.58% (or 210,289 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

There are 3 area codes serving this area including484, 610 and 835. Chester is also located in the Eastern timezone and the current local time is shown above.

Chester is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Core Based Statistical Area (CBSA). Its CBSA Code is 37980.It is classified as a metro area, which means the combined population is 50,000 or more (at its core).

CBSAs are defined by the OMB as geographic areas that have at least one core with a population of 10,000 or more (for a micro area) and adjacent territory with a high degree of social and economic integration. CBSA codes are commonly used to accurately file Medicare claims and to verify applicable incentives using a patient's ZIP Code.

ZIP Codes in Chester, PA have 204,898 Residential mailboxes and 12,092 Business mailboxes.There are 14,129 businesses with a total of 237,505 employees. That is an average of 16.8 employees per business. Annual payroll for these businesses is $18,902,543,000. Other Demographics

Chester County Demographic Profile

Population & People

Total Population

534,413

Income

Median Household Income

$123,041

Housing

Total Housing Units

208,240

Health

Without Healthcare Coverage

3.91%

Business & Economy

Total Businesses

14,129

Families

Total Households

197,119

Employment

Employment Rate

65.47%

Education

Bachelor's Degree or Higher

56.58%

Total Population: Total number of people from the 2020 U.S. Census for Chester, PA. This reflects the exact count of this area at that point in time, not future estimates, regardless of citizenship or immigration status. It is intended to count all persons living within the geographic area, not just those present on the day of the census.	534,413
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Chester, PA. This is derived from known delivery information, household occupancy rates, household size, and more to come up with an accurate estimation for the current population. IMPORTANT: This does not include population totals for persons in nursing homes, correctional facilities, or other institutions. This is an estimation of the household population based on US Postal Service delivery information.	541,302
Total Households: Total number of Households from the 2020 U.S. Census for Chester, PA. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	197,119
Total Housing Units: The total number of Housing Units is the number of occupied units + the number of vacant units. Ownership is defined by whether the unit is occupied by an owner or by a tenant. Owner occupancy means that the owner lives in the unit. This value comes from the 2020 U.S. Census and is not a projection or estimate.	208,240
Average Household Size: The Average Household Size, is obtained by dividing the number of people in Households (excluding those in group quarters, nursing home, prisons, and dorm rooms) by the number of Households. A Household includes everyone living in a residential unit. Those who do not live in a household are classified as living in group accommodation. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.64
Average Family Size: Average Family Size is calculated by dividing the number of people in a Family Household by the number of Family Households. The U.S. Census Bureau defines family households as households consisting of two or more individuals who are related by birth, marriage, or adoption. They also may include other unrelated people. Non-family households consist of people who live alone or who share their residence with unrelated individuals. The Average Family Size only looks at the households classified as Family Households. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.80

Other Chester Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	204,898
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	12,092
Total Delivery Receptacles: The total number of delivery receptacles. This includes curb side mailboxes, centralized units, PO Boxes, NDCBU, and contract boxes. This count is for Residential and Business combined.	260,286
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	145,229
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	15,570

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	14,129
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$4,877,117,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$18,902,543,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	237,505

Sum of all ZIP Codes assigned Chester, PA as their primary County.

References

U.S. Postal Service [Last Updated: 7/1/2025], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 7/1/2025], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023], https://www.census.gov