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

17505 (Bird In Hand), at 20.6 (±7.1), among 45 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 Lancaster County, PA

These are the 25 ZIP codes in Lancaster County with the lowest median age, out of 45 with at least 1,000 residents. 17505 (Bird In Hand, 20.6), 17535 (Kinzers, 22.6) and 17551 (Millersville, 23.1) lead the list. There is no single "best" ZIP code in Lancaster 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 Lancaster County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	17505	Bird In Hand	20.6 ±7.1	2,358	525	—
2	17535	Kinzers	22.6 ±5.7	3,042	773	815
3	17551	Millersville	23.1 ±1.6	11,753	3,608	3,859
4	17509	Christiana	27.7 ±2.9	5,135	1,473	1,530
5	17563	Peach Bottom	28.4 ±3.2	3,952	1,212	1,281
6	17529	Gordonville	29.2 ±6.9	4,826	1,494	1,476
7	17562	Paradise	30.1 ±3.8	4,373	1,263	1,415
8	17603	Lancaster	35.7 ±1.0	67,571	27,248	27,562
9	17572	Ronks	36.1 ±14.0	3,643	1,208	1,250
10	17508	Brownstown	36.5 ±7.9	1,125	370	—
11	17527	Gap	36.6 ±3.5	6,094	1,995	2,106
12	17555	Narvon	36.7 ±3.7	7,251	2,196	2,266
13	17566	Quarryville	36.9 ±2.1	12,603	4,327	4,337
14	17547	Marietta	37.2 ±4.5	9,210	3,599	3,470
15	17540	Leola	37.3 ±5.4	10,728	3,875	3,903
16	17519	East Earl	37.5 ±3.7	7,127	2,650	2,166
17	17602	Lancaster	37.7 ±1.8	52,217	19,265	19,786
18	17518	Drumore	37.8 ±9.2	1,360	429	432
19	17579	Strasburg	37.9 ±3.9	6,875	2,288	2,456
20	17578	Stevens	38.2 ±6.0	7,504	2,438	2,428
21	17522	Ephrata	38.3 ±1.4	33,852	13,813	13,457
22	17554	Mountville	38.7 ±3.0	7,453	2,925	3,297
23	17569	Reinholds	39.2 ±4.8	7,323	2,655	2,305
24	17536	Kirkwood	39.2 ±5.7	3,452	1,067	935
25	17517	Denver	39.7 ±2.2	14,686	5,334	6,003

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; 45 of 56 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 7,591 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 17505 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 Lancaster County has the lowest median age?: 17505 (Bird In Hand), at 20.6 (±7.1), among 45 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.