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

19085 (Villanova), at 20.7 (±0.2), among 38 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 Delaware County, PA

These are the 25 ZIP codes in Delaware County with the lowest median age, out of 38 with at least 1,000 residents. 19085 (Villanova, 20.7), 19032 (Folcroft, 30.5) and 19013 (Chester, 33.0) lead the list. There is no single "best" ZIP code in Delaware 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 Delaware County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	19085	Villanova	20.7 ±0.2	11,230	1,723	2,070
2	19032	Folcroft	30.5 ±1.9	6,772	2,566	2,516
3	19013	Chester	33.0 ±1.8	35,064	13,120	13,690
4	19076	Prospect Park	33.7 ±7.5	6,441	2,514	2,709
5	19082	Upper Darby	33.9 ±1.5	41,541	15,393	15,449
6	19079	Sharon Hill	33.9 ±2.4	8,745	3,115	3,492
7	19081	Swarthmore	34.8 ±2.7	10,089	3,415	3,655
8	19094	Woodlyn	34.8 ±4.6	3,929	1,569	1,997
9	19023	Darby	35.5 ±1.4	22,247	8,604	8,012
10	19026	Drexel Hill	36.0 ±1.3	32,725	12,841	13,106
11	19003	Ardmore	36.2 ±2.2	14,255	5,923	6,058
12	19022	Crum Lynne	37.0 ±4.0	4,482	1,815	1,544
13	19018	Clifton Heights	37.7 ±2.1	23,505	9,723	10,288
14	19033	Folsom	38.0 ±3.1	8,261	3,095	3,119
15	19010	Bryn Mawr	38.3 ±2.3	21,827	7,751	8,281
16	19373	Thornton	38.3 ±4.9	2,357	740	822
17	19036	Glenolden	38.4 ±1.6	13,668	5,204	5,523
18	19061	Marcus Hook	38.5 ±2.4	19,896	7,713	8,326
19	19153	Philadelphia	38.5 ±4.2	13,018	5,896	5,388
20	19078	Ridley Park	39.0 ±1.7	11,683	4,725	4,912
21	19083	Havertown	39.9 ±1.2	37,590	13,650	13,558
22	19087	Wayne	40.3 ±2.6	33,528	11,949	13,057
23	19015	Brookhaven	40.5 ±1.9	16,464	6,820	6,928
24	19074	Norwood	40.7 ±2.7	5,934	2,203	2,337
25	19014	Aston	41.6 ±2.3	21,427	8,027	8,204

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; 38 of 42 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 35,316 households, on 56 carrier routes with 36,434 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 19085 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Delaware County has the lowest median age?: 19085 (Villanova), at 20.7 (±0.2), among 38 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.