Collin County, Texas
Collin County is a county in Texas. Its county FIPS code is 48085. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 48085
- Representative coordinates
- 33.194482, -96.579428
- County type
- County
- County seat or government
- McKinney
- Resident population, July 2025
- 1,297,179
- Land area
- 2,179.508 km²
- Water area
- 114.885 km²
- State
- Texas
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Collin County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/Chicago | UTC-06:00 in January; UTC-05:00 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
75002 · 75007 · 75009 · 75013 · 75023 · 75024 · 75025 · 75033 · 75034 · 75035 · 75044 · 75048 · 75069 · 75070 · 75071 · 75072 · 75074 · 75075 · 75078 · 75080 · 75082 · 75087 · 75093 · 75094 · 75098 · 75164 · 75166 · 75173 · 75189 · 75248 · 75252 · 75287 · 75407 · 75409 · 75424 · 75442 · 75452 · 75454 · 75491 · 75495
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.
- Allen city, TX
- Anna city, TX
- Blue Ridge city, TX
- Carrollton city, TX
- Celina city, TX
- Dallas city, Texas
- Fairview town, TX
- Farmersville city, TX
- Frisco city, Texas
- Garland city, TX
- Hebron town, TX
- Josephine city, TX
- Lavon city, TX
- Lowry Crossing city, TX
- Lucas city, TX
- McKinney city, TX
- Melissa city, TX
- Murphy city, TX
- Nevada city, TX
- New Hope town, TX
- Parker city, TX
- Plano city, Texas
- Princeton city, TX
- Prosper town, TX
- Richardson city, TX
- Royse City city, TX
- Sachse city, TX
- St. Paul town, TX
- Seis Lagos CDP, TX
- Trenton city, TX
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.