| ZIP Codes: | 16 ZIP Codes (12 Standard, 4 PO Box, 0 Unique) [See All] |
| Area Codes: | 582 / 814 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:30 PM |
| Population: | 123,973 [See All] |
| FIPS: | 42013 |
| CBSA: | Altoona, PA |
| Land Area: | 577 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 40.4357, -78.3777 |
| Quick Link: |
123,973 residents live across 16 ZIPs covering 577 sq mi, served by 14 distinct USPS-recognized cities.
Population moved from 129,077 to 123,865 from 2014 to 2024 — a -4.0% change. 4 ZIPs gained residents, 10 lost.
The county's wealthiest ZIP 16648 (Hollidaysburg, $81,540 median) and poorest ZIP 16617 (Bellwood, $52,609) are 10.4 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.8× across this county — from $120,400 in 16637 (East Freedom) to $221,400 in 16662 (Martinsburg).
Density varies 32× across the county — from 55 people/sq mi in 16693 (Williamsburg) to 1,747 in 16602 (Altoona).
Educational attainment ranges from 12.4% bachelor's+ in 16693 (Williamsburg) to 37.9% in 16648 (Hollidaysburg) — the breadth of educational profiles across the area.
Within Pennsylvania, this is the #28 most populous of 67 counties and ranks #56 for median household income .
Weighted by population, the typical household earns about $63,845 across the county — reflecting what a typical resident sees, not a simple ZIP average.
24.5% of adults age 25+ hold a bachelor's degree or higher (21,668 of 88,614 reporting).
12 Standard delivery, 4 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 16601 | Altoona | Standard | 33,515 | $58,070 | 80.4 | -0.4% |
| 16602 | Altoona | Standard | 26,352 | $55,046 | 15.1 | -10.9% |
| 16648 | Hollidaysburg | Standard | 14,904 | $81,540 | 58.7 | -2.3% |
| 16686 | Tyrone | Standard | 13,427 | $69,008 | 151.5 | 2.7% |
| 16635 | Duncansville | Standard | 12,003 | $69,760 | 59.3 | -2.8% |
| 16662 | Martinsburg | Standard | 6,069 | $73,828 | 55.8 | -0.8% |
| 16673 | Roaring Spring | Standard | 5,204 | $70,464 | 36.6 | 1.2% |
| 16693 | Williamsburg | Standard | 3,795 | $62,898 | 69.2 | -15.1% |
| 16625 | Claysburg | Standard | 3,147 | $55,274 | 30.1 | -18.4% |
| 16617 | Bellwood | Standard | 2,392 | $52,609 | 1.5 | -10.1% |
| 16637 | East Freedom | Standard | 2,345 | $56,083 | 18.6 | -2.6% |
| 16682 | Sproul | Standard | 402 | $75,121 | 0.3 | 135.1% |
| 16665 | Newry | PO Box | 253 | $66,250 | 0.3 | -11.2% |
| 16684 | Tipton | PO Box | 108 | $34,107 | 0.0 | — |
| 16631 | Curryville | PO Box | 57 | — | 0.0 | 9.6% |
| 16603 | Altoona | PO Box | — | — | 0.0 | — |