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

19104 (Philadelphia), at 23.8 (±0.6), among 46 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 Philadelphia County, PA

These are the 25 ZIP codes in Philadelphia County with the lowest median age, out of 46 with at least 1,000 residents. 19104 (Philadelphia, 23.8), 19121 (Philadelphia, 27.4) and 19122 (Philadelphia, 27.9) lead the list. There is no single "best" ZIP code in Philadelphia 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 Philadelphia County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	19104	Philadelphia	23.8 ±0.6	55,172	21,088	26,466
2	19121	Philadelphia	27.4 ±1.5	41,574	18,045	21,096
3	19122	Philadelphia	27.9 ±1.3	25,439	9,647	14,274
4	19127	Philadelphia	30.6 ±1.3	5,664	3,371	3,725
5	19102	Philadelphia	31.0 ±2.4	6,195	4,347	6,171
6	19107	Philadelphia	31.6 ±1.0	14,825	9,266	12,058
7	19124	Philadelphia	32.7 ±0.9	71,004	25,300	23,431
8	19146	Philadelphia	32.8 ±0.8	41,058	19,489	22,640
9	19130	Philadelphia	32.9 ±0.8	30,116	16,600	18,875
10	19143	Philadelphia	33.7 ±0.8	62,572	28,654	27,074
11	19139	Philadelphia	33.7 ±1.6	43,090	18,906	19,232
12	19131	Philadelphia	33.8 ±2.1	43,776	19,761	21,053
13	19142	Philadelphia	33.9 ±1.9	28,829	12,033	10,531
14	19123	Philadelphia	33.9 ±1.0	19,681	10,378	17,205
15	19135	Philadelphia	34.0 ±2.8	33,803	13,405	12,600
16	19134	Philadelphia	34.5 ±1.3	53,594	21,254	22,838
17	19144	Philadelphia	34.7 ±1.6	50,580	22,274	21,830
18	19151	Philadelphia	34.7 ±2.3	33,267	13,819	12,842
19	19149	Philadelphia	34.8 ±1.4	56,914	19,423	19,249
20	19125	Philadelphia	34.9 ±0.8	25,140	12,417	15,768
21	19103	Philadelphia	35.0 ±1.9	25,900	17,577	22,020
22	19147	Philadelphia	35.8 ±0.8	39,704	19,801	20,809
23	19129	Philadelphia	35.8 ±1.8	11,937	5,924	5,989
24	19111	Philadelphia	36.6 ±1.5	66,283	26,068	24,389
25	19128	Philadelphia	36.6 ±0.9	38,039	17,980	19,071

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; 46 of 49 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 56,498 households, on 68 carrier routes with 71,732 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 19104 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Philadelphia County has the lowest median age?: 19104 (Philadelphia), at 23.8 (±0.6), among 46 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.