Rockwall County, Texas
Rockwall County, Texas, has 140,738 residents (July 2025 estimate). Its county seat is Rockwall. It uses Central Time and covers 127 sq mi (330 km²) of land.
- Resident population, July 2025
- 140,738
- Land area
- 127 sq mi (330 km²)
- County seat or government
- Rockwall
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $127,981 ± $4,257
- Median home value
- $415,500 ± $10,102
- Median rent, with utilities
- $1,992 ± $97
- Homes lived in by their owners
- 82.5% ± 1.7 points
- County type
- County
- Metro or micro area
- Dallas-Fort Worth-Arlington, TX metro areaCentral county
- Water area
- 21.7 sq mi (56.2 km²)
- State
- Texas
- County code (FIPS)
- 48397
- Coordinates (central point)
- 32.900280, -96.412049
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Rockwall County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 7512684,799 people
- 7509869,325 people
- 7518948,739 people
- 7508744,326 people
- 7503239,865 people
- 7508935,619 people
- 7516028,206 people
- 7508828,075 people
- 751320 people
9 ZIP Code areas overlap Rockwall County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Rockwall County, largest first
- Rockwall Independent School District96,578 people
- Royse City Independent School District42,496 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Dallas, Texas (city)1,307,930 people
- Rowlett, Texas (city)65,463 people
- Wylie, Texas (city)60,334 people
- Rockwall, Texas (city)51,168 people
- Fate, Texas (city)22,884 people
- Royse City, Texas (city)20,037 people
- Heath, Texas (city)10,777 people
- McLendon-Chisholm, Texas (city)4,511 people
- Mobile City, Texas (city)296 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Kaufman County, Texas22 mi south
- Collin County, Texas23 mi northwest
- Dallas County, Texas23 mi southwest
- Hunt County, Texas24 mi northeast
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 where you are now, check its ZIP area, or check the time zone where you are.