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

17027 (Grantham), at 20.6 (±0.3), 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.

Youngest ZIP codes in Cumberland County, PA

These are the 15 ZIP codes in Cumberland County with the lowest median age, out of 15 with at least 1,000 residents. 17027 (Grantham, 20.6), 17257 (Shippensburg, 34.0) and 17065 (Mount Holly Springs, 35.0) 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.

Youngest ZIP codes in Cumberland County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	17027	Grantham	20.6 ±0.3	2,801	197	—
2	17257	Shippensburg	34.0 ±1.2	29,204	10,786	11,169
3	17065	Mount Holly Springs	35.0 ±6.1	4,389	1,587	1,793
4	17043	Lemoyne	38.9 ±5.8	5,852	2,913	3,086
5	17011	Camp Hill	39.6 ±1.1	39,664	14,407	15,057
6	17025	Enola	39.7 ±2.7	17,648	7,522	8,841
7	17070	New Cumberland	40.9 ±2.4	16,830	7,116	7,446
8	17013	Carlisle	41.0 ±1.4	38,513	15,936	15,735
9	17055	Mechanicsburg	41.4 ±1.8	42,006	18,318	19,377
10	17241	Newville	41.6 ±3.0	11,181	4,314	4,884
11	17050	Mechanicsburg	41.7 ±1.2	43,571	16,923	18,419
12	17007	Boiling Springs	42.2 ±3.8	5,865	2,150	2,299
13	17240	Newburg	43.2 ±5.3	3,241	1,192	1,166
14	17324	Gardners	47.5 ±5.6	4,433	1,735	1,695
15	17015	Carlisle	48.1 ±2.3	24,385	9,811	10,624

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; 15 of 18 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 29,890 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 17027 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 Cumberland County has the lowest median age?: 17027 (Grantham), at 20.6 (±0.3), among 15 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.