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Rockwall County, Texas facts for kids

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Rockwall County
U.S. county
The Rockwall County Courthouse in Rockwall
The Rockwall County Courthouse in Rockwall
Map of Texas highlighting Rockwall County
Location within the U.S. state of Texas
Map of the United States highlighting Texas
Texas's location within the U.S.
Country  United States
State  Texas
Founded 1873
Named for Rockwall, Texas, named in turn for its clastic dikes
Seat Rockwall
Largest city Dallas
Area
 • Total 149 sq mi (390 km2)
 • Land 127 sq mi (330 km2)
 • Water 22 sq mi (60 km2)  15%
Population
 (2020)
 • Total 107,819
 • Density 723.6/sq mi (279.4/km2)
Demonym(s) Rockwallian
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 4th

Rockwall County is a county in the U.S. state of Texas. At 149 square miles, Rockwall County has the smallest area of any Texas county. Per the 2020 Census, its population was 107,819. Its county seat is Rockwall. The county and city are named for a wall-like subterranean rock formation that runs throughout the county.

Rockwall County is part of the Dallas-Fort Worth-Arlington metropolitan statistical area. It was one of the top 25 fastest-growing counties in the U.S. in 2010. Rockwall County is listed as the sixth-wealthiest county in Texas.

Cities in Rockwall county include Rockwall, Heath, Royse City, Fate, McClendon-Chisholm, Mobile City, and part of Rowlett.

History

Rockwall County was formed in 1873 from portions of Kaufman County. It split off because access to the county seat of Kaufman was inconvenient. It was named for its county seat, Rockwall.

Geography

According to the U.S. Census Bureau, the county has an area of 149 square miles (390 km2), of which 127 square miles (330 km2) is land and 22 square miles (57 km2) (15%) is water. It is the smallest county by area in Texas.

Major highways

  • I-30.svg Interstate 30
  • US 67.svg U.S. Highway 67
  • Texas 66.svg State Highway 66
  • Texas 205.svg State Highway 205
  • Texas 276.svg State Highway 276

Adjacent counties

Demographics

Historical population
Census Pop. %±
1880 2,984 —
1890 5,972 100.1%
1900 8,531 42.8%
1910 8,072 −5.4%
1920 8,591 6.4%
1930 7,658 −10.9%
1940 7,051 −7.9%
1950 6,156 −12.7%
1960 5,878 −4.5%
1970 7,046 19.9%
1980 14,528 106.2%
1990 25,604 76.2%
2000 43,080 68.3%
2010 78,337 81.8%
2020 107,819 37.6%
U.S. Decennial Census
1850–2010 2010–2020

2020 census

Rockwall County, Texas - Demographic Profile
(NH = Non-Hispanic)
Race / Ethnicity Pop 2010 Pop 2020 % 2010 % 2020
White alone (NH) 58,046 70,198 74.10% 65.11%
Black or African American alone (NH) 4,397 8,179 5.61% 7.59%
Native American or Alaska Native alone (NH) 345 479 0.44% 0.44%
Asian alone (NH) 1,850 3,306 2.36% 3.07%
Pacific Islander alone (NH) 47 75 0.06% 0.07%
Some Other Race alone (NH) 116 344 0.15% 0.32%
Mixed Race/Multi-Racial (NH) 1,066 4,678 1.36% 4.34%
Hispanic or Latino (any race) 12,470 20,560 15.92% 19.07%
Total 78,337 107,819 100.00% 100.00%

Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.

Communities

Cities

Education

The following school districts serve Rockwall County:

  • Rockwall Independent School District (small portion in Kaufman County)
  • Royse City Independent School District (small portion in Collin, Hunt counties)

From 1997 to 2015 the number of non-Hispanic white children in K-12 schools in the county increased by 6,000 as part of a trend of white flight and suburbanization by non-Hispanic white families.

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