Which ZIP code in Cumberland County has the highest median age?

17015 (Carlisle), at 48.1 (±2.3), among 15 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.

Oldest ZIP codes in Cumberland County, PA

These are the 15 ZIP codes in Cumberland County with the highest median age, out of 15 with at least 1,000 residents. 17015 (Carlisle, 48.1), 17324 (Gardners, 47.5) and 17240 (Newburg, 43.2) lead the list. There is no single "best" ZIP code in Cumberland County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Oldest ZIP codes in Cumberland County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	17015	Carlisle	48.1 ±2.3	24,385	9,811	10,624
2	17324	Gardners	47.5 ±5.6	4,433	1,735	1,695
3	17240	Newburg	43.2 ±5.3	3,241	1,192	1,166
4	17007	Boiling Springs	42.2 ±3.8	5,865	2,150	2,299
5	17050	Mechanicsburg	41.7 ±1.2	43,571	16,923	18,419
6	17241	Newville	41.6 ±3.0	11,181	4,314	4,884
7	17055	Mechanicsburg	41.4 ±1.8	42,006	18,318	19,358
8	17013	Carlisle	41.0 ±1.4	38,513	15,936	15,735
9	17070	New Cumberland	40.9 ±2.4	16,830	7,116	7,446
10	17025	Enola	39.7 ±2.7	17,648	7,522	8,841
11	17011	Camp Hill	39.6 ±1.1	39,664	14,407	15,057
12	17043	Lemoyne	38.9 ±5.8	5,852	2,913	3,086
13	17065	Mount Holly Springs	35.0 ±6.1	4,389	1,587	1,793
14	17257	Shippensburg	34.0 ±1.2	29,204	10,786	11,169
15	17027	Grantham	20.6 ±0.3	2,801	197	—

How we ranked them

Ranked by median age of all residents, highest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 15 of 18 qualify.

Which of these to mail, and why

Older ZIP codes respond to health care, hearing and vision, Medicare plans, home safety, estate planning and services that come to the door.

The top five ZIP codes on this list hold 31,811 households, on 57 carrier routes with 34,203 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 17015 on the EDDM route map

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Frequently asked questions

Which ZIP code in Cumberland County has the highest median age?: 17015 (Carlisle), at 48.1 (±2.3), among 15 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, highest 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.