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

17401 (York), at 31.4 (±2.5), 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 York County, PA

These are the 25 ZIP codes in York County with the lowest median age, out of 38 with at least 1,000 residents. 17401 (York, 31.4), 17366 (Windsor, 36.7) and 17407 (York, 37.9) lead the list. There is no single "best" ZIP code in York 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 York County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	17401	York	31.4 ±2.5	18,570	7,600	6,945
2	17366	Windsor	36.7 ±2.2	6,392	2,302	2,240
3	17407	York	37.9 ±5.2	2,673	913	—
4	17406	York	38.5 ±1.6	23,636	8,969	10,236
5	17403	York	38.6 ±1.6	40,287	15,439	15,910
6	17319	Etters	38.9 ±1.8	11,292	4,322	4,421
7	17313	Dallastown	39.0 ±3.2	11,428	4,350	4,401
8	17402	York	39.5 ±1.2	37,466	14,569	14,821
9	17404	York	39.6 ±2.3	39,374	15,128	15,467
10	17356	Red Lion	39.9 ±1.7	22,869	9,109	10,358
11	17070	New Cumberland	40.9 ±2.4	16,830	7,116	7,446
12	17364	Thomasville	41.1 ±4.2	4,209	1,623	1,558
13	17314	Delta	41.3 ±3.2	6,640	2,385	2,356
14	17055	Mechanicsburg	41.4 ±1.8	42,006	18,318	19,377
15	17370	York Haven	41.8 ±4.3	7,090	2,601	2,554
16	17331	Hanover	42.0 ±1.4	56,443	23,100	24,362
17	17301	Abbottstown	42.4 ±3.8	4,133	1,513	1,782
18	17347	Mount Wolf	42.7 ±3.8	6,393	2,429	2,094
19	17360	Seven Valleys	42.8 ±4.1	5,735	2,205	2,397
20	17368	Wrightsville	42.9 ±3.5	7,005	2,887	3,280
21	17322	Felton	43.1 ±6.2	6,473	2,562	2,281
22	17345	Manchester	43.2 ±5.0	7,715	3,185	3,354
23	17365	Wellsville	43.2 ±6.9	2,897	1,104	1,108
24	17019	Dillsburg	43.9 ±2.1	19,594	7,548	7,695
25	17408	York	44.0 ±2.0	25,431	10,214	10,376

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 45 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 35,223 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 17401 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in York County has the lowest median age?: 17401 (York), at 31.4 (±2.5), 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.