Allegheny County, Pennsylvania
Allegheny County is a county in Pennsylvania. Its county FIPS code is 42003. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 42003
- Representative coordinates
- 40.469757, -79.980451
- County type
- County
- County seat or government
- Pittsburgh
- Resident population, July 2025
- 1,225,035
- Land area
- 1,890.567 km²
- Water area
- 37.048 km²
- State
- Pennsylvania
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Allegheny County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
15003 · 15005 · 15006 · 15007 · 15014 · 15015 · 15017 · 15018 · 15020 · 15024 · 15025 · 15026 · 15028 · 15030 · 15031 · 15034 · 15035 · 15037 · 15044 · 15045 · 15046 · 15047 · 15049 · 15051 · 15056 · 15057 · 15063 · 15064 · 15065 · 15068 · 15071 · 15075 · 15076 · 15082 · 15083 · 15084 · 15085 · 15086 · 15088 · 15089 · 15090 · 15101 · 15102 · 15104 · 15106 · 15108 · 15110 · 15112 · 15116 · 15120 · 15122 · 15123 · 15126 · 15129 · 15131 · 15132 · 15133 · 15135 · 15136 · 15137 · 15139 · 15140 · 15142 · 15143 · 15144 · 15145 · 15146 · 15147 · 15148 · 15201 · 15202 · 15203 · 15204 · 15205 · 15206 · 15207 · 15208 · 15209 · 15210 · 15211 · 15212 · 15213 · 15214 · 15215 · 15216 · 15217 · 15218 · 15219 · 15220 · 15221 · 15222 · 15223 · 15224 · 15225 · 15226 · 15227 · 15228 · 15229 · 15232 · 15233 · 15234 · 15235 · 15236 · 15237 · 15238 · 15239 · 15241 · 15243 · 15260 · 15275 · 15282 · 15290 · 15321 · 15332 · 15642 · 15668 · 16046 · 16055 · 16059
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Use the US government local-office directory ↗ to find the office responsible for your address. A county website has not been confidently matched here. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Allison Park CDP, PA
- Aspinwall borough, PA
- Avalon borough, PA
- Bairdford CDP, PA
- Bakerstown CDP, PA
- Baldwin borough, PA
- Bell Acres borough, PA
- Bellevue borough, PA
- Ben Avon borough, PA
- Ben Avon Heights borough, PA
- Bethel Park municipality, PA
- Blaine Hill CDP, PA
- Blawnox borough, PA
- Boston CDP, PA
- Brackenridge borough, PA
- Braddock borough, PA
- Braddock Hills borough, PA
- Bradford Woods borough, PA
- Brentwood borough, PA
- Bridgeville borough, PA
- Buena Vista CDP, PA
- Bunola CDP, PA
- Carnegie borough, PA
- Carnot-Moon CDP, PA
- Castle Shannon borough, PA
- Chalfant borough, PA
- Cheswick borough, PA
- Churchill borough, PA
- Clairton municipality, PA
- Clinton CDP, PA
Browse all cities, towns and communities for Allegheny County
Areas sharing the mapped boundary
These areas touch this mapped boundary.
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county at your current point, check its ZIP area, or find its physical time zone.