- county
- FIPS 48397
- Largest town: Rockwall
Rockwall County, Texas
Rockwall County had 137,044 residents in the Census Vintage 2024 estimate, on 127.2 square miles of land. It ranks 36th of 254 in Texas by population and 254th by land area.
- Population
- 137,044
- #36 of 254 in Texas · #486 in US
- Area
- 127.2 sq mi
- #254 of 254 in Texas · #3,077 in US
- Density
- 1,077 / sq mi
- #9 of 254 in Texas · #150 in US
- Median household income
- $118,175
- #2 of 254 in Texas · #43 in US
Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area
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Rockwall County population, land area and income
Rockwall County had 137,044 residents in the Census Vintage 2024 estimate, on 127.2 square miles of land. It ranks 36th of 254 in Texas by population and 254th by land area. That works out to 1,077.3 people per square mile, 11.2 times the US average of 96.3, and in the top tenth nationally.
The median county-equivalent in Texas has 19,267 residents, so Rockwall County is 7.1 times that size.
Its SAIPE 2023 median household income of $118,175 is in the top tenth among 3,143 counties with an estimate.
National rank among 3,144
Population
137,044
486th of 3,144 (US)
Land area
127 sq mi
3077th of 3,144 (US)
Density
1,077.3 / sq mi
150th of 3,144 (US)
Median household income
$118,175
43rd of 3,143 (US)
Rank within Texas (254)
Population
137,044
36th of 254 (TX)
Land area
127 sq mi
254th of 254 (TX)
Density
1,077.3 / sq mi
9th of 254 (TX)
Median household income
$118,175
2nd of 254 (TX)
How Rockwall County's population changed since 2020
Rockwall County gained 27,842 residents between the July 2020 and July 2024 estimates, a rise of 25.5%. That ranks 2nd of 254 in Texas for growth. The median Texas county changed by +2.1%, and the state as a whole by +7.0%.
Since the April 2020 estimates base, Rockwall County recorded 5,601 births and 3,516 deaths, a natural change of +2,085. Net international migration added +1,020 and net domestic migration, people moving to or from other US counties, came to +26,193. The largest single component was domestic migration, which added 26,193 people.
Components of change, April 2020 to July 2024
- Births
- 5,601
- Deaths
- 3,516
- Net international migration
- +1,020
- Net domestic migration
- +26,193
- Change, July 2023 to July 2024
- +5,408
Where Rockwall County is
The Census internal point of Rockwall County is at 32.899900, -96.412000. It sits in UTM zone 14N. The map shades Texas's 254 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Rockwall County outlined. Dots are towns of 1,000+ people with residents in it.
- < -2.0%
- < +0.8%
- < +3.7%
- < +6.9%
- ≥ +6.9%
Orange pin: Rockwall County internal point. Dark pin: Austin.
Internal point
- Decimal
- 32.899900, -96.412000
- DMS
- 32°53'59.64"N 96°24'43.20"W
- UTM
- 14N 742066.8E 3643160.7N
- Geohash
- 9vg7nj4zv
- Plus code
- 8645VHXQ+X5
Towns in Rockwall County
7 incorporated places of 1,000+ people have residents in Rockwall County, 125,539 people together, or 92% of the county. Each figure counts only the part of the town inside Rockwall County; towns marked "part" extend into another county. The largest is Rockwall with 53,547.
- 01Rockwall53,547
- 02Fate27,467
- 03Royse City (part)17,694
- 04Heath (part)11,460
- 05Rowlett (part)8,446
- 06McLendon-Chisholm5,291
- 07Wylie (part)1,634
Counties bordering Rockwall County
The Census 2024 county adjacency file lists 4 neighbors for Rockwall County. The most populous is Dallas County, TX, with 2,656,028 residents. Distances run between Census internal points in a straight line.
Distance to Austin and the nearest big city
Austin is 197.5 miles SSW of Rockwall County's internal point in a straight line. The nearest place of 100,000 or more is Garland, TX (population 250,431), 12.7 miles away. The nearest place of 10,000 or more is Rockwall, TX (population 53,547), 2.0 miles away.
Rockwall County FIPS code
The FIPS code of Rockwall County is 48397: state code 48 for Texas plus county code 397. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $118,175.
Questions people ask
What is the population of Rockwall County, Texas?
The Census Vintage 2024 estimate for July 1, 2024 is 137,044. That is up 27,842 people (25.5%) from the July 2020 estimate of 109,202.
What is the FIPS code of Rockwall County?
48397. The first two digits (48) are Texas; the last three (397) identify the county.
What is the largest town in Rockwall County?
Rockwall, with 53,547 residents inside Rockwall County in 2024.
Which counties border Rockwall County?
4 county-equivalents border it in the Census 2024 adjacency file: Dallas County, TX; Collin County, TX; Kaufman County, TX; Hunt County, TX.
Sources and data as of
Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.
- 01Census Vintage 2024 county population estimates
- 02Census 2024 Gazetteer, counties
- 03Census SAIPE 2023 state and county estimates
- 04Census Vintage 2024 subcounty population estimates
- 05Census 2024 county adjacency file
- 06Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.