Which ZIP code in Chester County has the lowest median age?

19383 (West Chester), at 19.6 (±0.1), among 31 ZIP codes with at least 1,000 residents.

Why are some ZIP codes missing?

ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

Youngest ZIP codes in Chester County, PA

These are the 25 ZIP codes in Chester County with the lowest median age, out of 31 with at least 1,000 residents. 19383 (West Chester, 19.6), 19365 (Parkesburg, 33.8) and 19310 (Atglen, 33.8) lead the list. There is no single "best" ZIP code in Chester County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Youngest ZIP codes in Chester County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	19383	West Chester	19.6 ±0.1	6,537	180	—
2	19365	Parkesburg	33.8 ±3.1	8,006	2,857	3,050
3	19310	Atglen	33.8 ±6.8	2,950	941	928
4	19311	Avondale	35.8 ±2.5	11,692	3,619	2,960
5	19341	Exton	37.2 ±1.9	21,709	9,069	10,127
6	19352	Lincoln University	37.7 ±2.6	11,484	3,243	2,816
7	19460	Phoenixville	38.6 ±1.3	45,423	18,612	19,458
8	19363	Oxford	38.6 ±4.2	18,231	6,234	6,557
9	19475	Spring City	39.2 ±3.8	12,298	4,850	5,025
10	19087	Wayne	40.3 ±2.6	33,528	11,949	13,057
11	19372	Thorndale	40.3 ±19.0	1,854	804	968
12	19335	Downingtown	40.5 ±0.9	53,629	20,002	21,604
13	19382	West Chester	40.9 ±1.5	54,127	21,440	21,154
14	19320	Coatesville	41.2 ±1.1	55,941	20,462	21,230
15	19333	Devon	41.2 ±4.4	7,471	2,953	3,175
16	19362	Nottingham	41.2 ±1.5	6,092	2,194	2,155
17	19425	Chester Springs	41.7 ±1.0	17,219	5,710	5,952
18	19355	Malvern	42.0 ±1.1	29,425	11,535	12,333
19	19390	West Grove	42.5 ±3.6	12,546	4,267	5,562
20	19330	Cochranville	43.3 ±3.9	5,957	2,099	2,173
21	19344	Honey Brook	43.5 ±4.8	12,827	4,555	4,460
22	19350	Landenberg	43.8 ±2.1	10,945	3,904	4,021
23	19348	Kennett Square	43.9 ±1.6	23,621	8,884	9,863
24	19317	Chadds Ford	43.9 ±2.2	10,864	4,044	4,136
25	19380	West Chester	44.1 ±1.5	49,856	21,077	21,524

How we ranked them

Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 31 of 41 qualify.

Which of these to mail, and why

Younger ZIP codes skew toward renters, students and young families: fitness, quick-service food, apartments, entertainment and first-time-buyer offers.

The top five ZIP codes on this list hold 16,666 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 19383 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

Map it and price it

EDDM guides

Frequently asked questions

Which ZIP code in Chester County has the lowest median age?: 19383 (West Chester), at 19.6 (±0.1), among 31 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024).
Why are some ZIP codes missing?: ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.