103 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 15237 | Pittsburgh | 44,161 |
| 15108 | Coraopolis | 42,782 |
| 15235 | Pittsburgh | 33,811 |
| 15236 | Pittsburgh | 31,152 |
| 15102 | Bethel Park | 30,589 |
| 15213 | Pittsburgh | 29,839 |
| 15221 | Pittsburgh | 29,513 |
| 15206 | Pittsburgh | 29,176 |
| 15227 | Pittsburgh | 29,057 |
| 15146 | Monroeville | 28,422 |
| 15044 | Gibsonia | 27,844 |
| 15212 | Pittsburgh | 27,600 |
| 15217 | Pittsburgh | 26,200 |
| 15101 | Allison Park | 25,841 |
| 15090 | Wexford | 25,110 |
| 15210 | Pittsburgh | 25,017 |
| 15205 | Pittsburgh | 24,123 |
| 15136 | McKees Rocks | 22,899 |
| 15143 | Sewickley | 21,949 |
| 15241 | Pittsburgh | 21,941 |
| 15216 | Pittsburgh | 21,503 |
| 15239 | Pittsburgh | 21,414 |
| 15202 | Pittsburgh | 19,642 |
| 15106 | Carnegie | 19,165 |
| 15132 | Mckeesport | 19,083 |
| 15122 | West Mifflin | 18,939 |
| 15220 | Pittsburgh | 18,519 |
| 15228 | Pittsburgh | 18,187 |
| 15120 | Homestead | 17,999 |
| 15017 | Bridgeville | 17,602 |
| 15025 | Clairton | 16,659 |
| 15147 | Verona | 16,605 |
| 15229 | Pittsburgh | 15,251 |
| 15214 | Pittsburgh | 14,751 |
| 15234 | Pittsburgh | 14,330 |
| 15116 | Glenshaw | 14,294 |
| 15226 | Pittsburgh | 13,943 |
| 15243 | Pittsburgh | 13,682 |
| 15218 | Pittsburgh | 13,443 |
| 15201 | Pittsburgh | 13,275 |
| 15238 | Pittsburgh | 13,000 |
| 15071 | Oakdale | 12,455 |
| 15215 | Pittsburgh | 12,234 |
| 15209 | Pittsburgh | 11,769 |
| 15232 | Pittsburgh | 11,370 |
| 15219 | Pittsburgh | 11,010 |
| 15065 | Natrona Heights | 10,927 |
| 15207 | Pittsburgh | 10,751 |
| 15211 | Pittsburgh | 10,733 |
| 15203 | Pittsburgh | 10,713 |
| 15129 | South Park | 10,553 |
| 15224 | Pittsburgh | 10,516 |
| 15037 | Elizabeth | 10,412 |
| 15137 | North Versailles | 10,075 |
| 15084 | Tarentum | 9,884 |
| 15208 | Pittsburgh | 9,500 |
| 15024 | Cheswick | 9,192 |
| 15131 | Mckeesport | 8,451 |
| 15104 | Braddock | 7,946 |
| 15204 | Pittsburgh | 7,809 |
| 15126 | Imperial | 6,776 |
| 15139 | Oakmont | 6,712 |
| 15223 | Pittsburgh | 6,656 |
| 15145 | Turtle Creek | 6,594 |
| 15133 | Mckeesport | 6,139 |
| 15282 | Pittsburgh | 5,702 |
| 15222 | Pittsburgh | 5,649 |
| 15110 | Duquesne | 5,186 |
| 15135 | Mckeesport | 4,977 |
| 15045 | Glassport | 4,400 |
| 15144 | Springdale | 3,939 |
| 15112 | East Pittsburgh | 3,345 |
| 15014 | Brackenridge | 3,109 |
| 15140 | Pitcairn | 3,065 |
| 15233 | Pittsburgh | 2,918 |
| 15046 | Crescent | 2,310 |
| 15148 | Wilmerding | 2,287 |
| 15035 | East McKeesport | 2,063 |
| 15142 | Presto | 1,620 |
| 15034 | Dravosburg | 1,600 |
| 15015 | Bradfordwoods | 1,302 |
| 15030 | Creighton | 1,044 |
| 15056 | Leetsdale | 1,034 |
| 15225 | Pittsburgh | 1,031 |
| 15049 | Harwick | 919 |
| 15018 | Buena Vista | 899 |
| 15076 | Russellton | 859 |
| 15086 | Warrendale | 665 |
| 15020 | Bunola | 497 |
| 15007 | Bakerstown | 476 |
| 15051 | Indianola | 446 |
| 15088 | West Elizabeth | 400 |
| 15031 | Cuddy | 372 |
| 15064 | Morgan | 348 |
| 15082 | Sturgeon | 225 |
| 15028 | Coulters | 202 |
| 15006 | Bairdford | 116 |
| 15047 | Greenock | 108 |
| 15075 | Rural Ridge | 29 |
| 15123 | West Mifflin | 2 |
| 15275 | Pittsburgh | 2 |
| 15260 | Pittsburgh | 0 |
| 15290 | Pittsburgh | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 103 ZCTAs in Allegheny County, Pennsylvania (US Census).