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

17745 (Lock Haven), at 37.3 (±2.3), among 14 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 Lycoming County, PA

These are the 14 ZIP codes in Lycoming County with the lowest median age, out of 14 with at least 1,000 residents. 17745 (Lock Haven, 37.3), 17701 (Williamsport, 38.6) and 17756 (Muncy, 39.1) lead the list. There is no single "best" ZIP code in Lycoming 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 Lycoming County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	17745	Lock Haven	37.3 ±2.3	17,718	7,282	7,502
2	17701	Williamsport	38.6 ±1.3	43,104	18,548	18,789
3	17756	Muncy	39.1 ±1.7	12,856	4,482	4,839
4	17810	Allenwood	39.2 ±3.2	5,309	607	766
5	17740	Jersey Shore	41.4 ±2.9	12,017	4,557	5,412
6	17752	Montgomery	42.2 ±3.4	4,975	1,931	1,949
7	16930	Liberty	42.9 ±7.5	1,119	462	513
8	17702	Williamsport	43.1 ±2.7	10,488	4,457	4,582
9	17765	Roaring Branch	45.6 ±4.0	1,279	468	487
10	17771	Trout Run	46.5 ±5.2	2,929	1,219	1,322
11	17754	Montoursville	46.9 ±2.8	12,061	5,161	5,453
12	17737	Hughesville	47.3 ±6.3	5,970	2,663	2,869
13	17728	Cogan Station	49.6 ±2.2	4,675	1,997	2,112
14	17744	Linden	49.7 ±3.4	2,808	1,114	1,288

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; 14 of 26 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 35,476 households, on 75 carrier routes with 37,308 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 17745 on the EDDM route map

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Frequently asked questions

Which ZIP code in Lycoming County has the lowest median age?: 17745 (Lock Haven), at 37.3 (±2.3), among 14 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.