Oldest ZIP codes in Allegheny County, PA
These are the 25 ZIP codes in Allegheny County with the highest median age, out of 93 with at least 1,000 residents. 15131 (Mckeesport, 55.4), 15046 (Crescent, 53.7) and 15243 (Pittsburgh, 52.9) lead the list. There is no single "best" ZIP code in Allegheny 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 Allegheny County
| Rank | ZIP | Mailing city | Median age | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 15131 | Mckeesport | 55.4 ±3.8 | 8,209 | 4,166 | 3,968 |
| 2 | 15046 | Crescent | 53.7 ±6.1 | 2,141 | 975 | 1,060 |
| 3 | 15243 | Pittsburgh | 52.9 ±2.5 | 13,456 | 5,730 | 5,936 |
| 4 | 15144 | Springdale | 52.4 ±4.7 | 3,771 | 1,863 | 1,914 |
| 5 | 15063 | Monongahela | 52.3 ±3.7 | 10,525 | 4,598 | 5,006 |
| 6 | 15015 | Bradfordwoods | 51.4 ±5.3 | 1,291 | 511 | 485 |
| 7 | 15147 | Verona | 50.9 ±3.2 | 15,798 | 7,371 | 7,997 |
| 8 | 15065 | Natrona Heights | 50.0 ±4.2 | 10,894 | 5,037 | 5,218 |
| 9 | 15005 | Baden | 50.0 ±2.2 | 9,570 | 4,303 | 4,681 |
| 10 | 15135 | Mckeesport | 49.8 ±10.5 | 4,859 | 2,028 | 2,162 |
| 11 | 15044 | Gibsonia | 48.3 ±3.2 | 27,370 | 10,821 | 11,964 |
| 12 | 15102 | Bethel Park | 48.2 ±1.9 | 30,344 | 13,463 | 13,236 |
| 13 | 15332 | Finleyville | 48.2 ±5.8 | 7,678 | 3,634 | 3,857 |
| 14 | 15035 | East Mc Keesport | 47.7 ±2.8 | 2,002 | 1,033 | 1,034 |
| 15 | 15238 | Pittsburgh | 47.4 ±2.3 | 12,868 | 5,591 | 6,091 |
| 16 | 15024 | Cheswick | 47.4 ±3.6 | 9,325 | 3,886 | 3,864 |
| 17 | 15030 | Creighton | 47.1 ±6.0 | 1,018 | 474 | 469 |
| 18 | 15143 | Sewickley | 47.0 ±1.6 | 21,851 | 8,708 | 9,366 |
| 19 | 15034 | Dravosburg | 47.0 ±4.5 | 1,643 | 871 | 866 |
| 20 | 15142 | Presto | 46.9 ±7.0 | 1,513 | 722 | 1,023 |
| 21 | 15145 | Turtle Creek | 46.8 ±3.3 | 6,695 | 3,194 | 3,336 |
| 22 | 15014 | Brackenridge | 46.3 ±4.0 | 3,095 | 1,461 | 1,357 |
| 23 | 15068 | New Kensington | 46.2 ±2.1 | 36,203 | 16,821 | 17,115 |
| 24 | 15137 | North Versailles | 45.5 ±2.7 | 10,043 | 4,676 | 4,843 |
| 25 | 15116 | Glenshaw | 45.4 ±2.9 | 14,461 | 5,967 | 6,156 |
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; 93 of 112 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 17,332 households, on 37 carrier routes with 17,884 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 15131 on the EDDM route map
More rankings
- Richest ZIP codes in Allegheny County
- ZIP codes with the highest home values in Allegheny County
- ZIP codes with the highest homeownership in Allegheny County
- ZIP codes with the most families with kids in Allegheny County
- ZIP codes with the most new movers in Allegheny County
- Youngest ZIP codes in Allegheny County
- Fastest-growing ZIP codes in Allegheny County
- All Allegheny County ZIP codes
Businesses that mail these ZIP codes
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Frequently asked questions
- Which ZIP code in Allegheny County has the highest median age?
- 15131 (Mckeesport), at 55.4 (±3.8), among 93 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.