Rockwall County

Rockwall County, Texas

Rockwall County, Texas

The Rockwall County Courthouse is housed in Rockwall, Texas. Photograph by Larry D. Moore.

Rockwall County is on the Blackland Prairies of north central Texas at 32°55' north latitude and 96°25' west longitude, twenty-five miles northeast of Dallas. Rockwall County is the smallest county in Texas. Its 147 square miles of flat, undulating, and gently rolling prairie ranges in elevation from 390 to 620 feet above sea level. The almost square county has three distinct topographic divisions: the valley of the East Fork of the Trinity River; a small area of gently undulating to steeply sloping terraces west of the valley; and rolling uplands east of the valley, which cover 80 percent of the county. The light to dark soils are slightly acidic and have loamy to clayey surfaces and cracking, clayey subsoils. Ninety-three percent of the county is arable and extremely fertile. The greater part of Rockwall County is a treeless prairie, although there was once heavy timber along the East Fork of the Trinity River. Along the creeks and in the bottoms there are a variety of hard and softwood trees, including bois d'arc, elm, oak, mesquite, and pecan. In the eastern part of the county grow tall bunch grasses, while shorter grasses are found to the west. There are a few native grass hay meadows, but most of the pasture land is in bermuda, clover, or Johnsongrass. All parts of the county are well watered by springs and small lakes. The area did not have a large, navigable body of water until the East Fork of the Trinity River, which runs north to south along the western border the county, was dammed to form Lake Ray Hubbard. The lake, built to supply water for Dallas, now covers 13.55 percent of Rockwall County. Except for a small section of the northeastern part of the county, which drains into the Sabine Creek, all streams empty into the East Fork. The growing season is 236 days, with an average annual precipitation of 38.68 inches. The temperature ranges from an average high of 96° F in July to an average low of 34° in January. There are no mineral resources, except for a small amount of native stone.

Adapted from the official Handbook of Texas, a state encyclopedia developed by the Texas State Historical Association (TSHA). It is an authoritative source of trusted historical records.

Adopt a Town

The Texas Almanac's Land Rush program lets you adopt the town or county of your choice and share your message with the world. 100% of the proceeds benefit education in Texas.

County Map of Texas

Rockwall County

Highlighted:
  • Rockwall County

Currently Exists

Yes

Place type

Rockwall County is classified as a County

Altitude Range

430 ft – 624 ft

Proud to call TX home?

Put your name on the town or county of your choice.


Search Places »

Rockwall County by the Numbers

This is some placeholder text that we should either remove or replace with a brief summary about this particular metric. For example, "We update population counts once per year..."

Population Counts

Rockwall County
Pop. Year Source
104,915 2019 United States Census Bureau

Civilian Labor Counts

Rockwall County
People Year Source
51,455 2019 Texas Workforce Commission

This is some placeholder text that we should either remove or replace with a brief summary about this particular metric. For example, "We update population counts once per year..."

Per Capita Income (USD) Year Source
$61,003 2019 U.S. Bureau of Economic Analysis

This is some placeholder text that we should either remove or replace with a brief summary about this particular metric. For example, "We update population counts once per year..."

Property Values

Rockwall County
USD ($) Year Source
12,786,885,672 2019 State Property Tax Board

Retail Sales

Rockwall County
USD ($) Year Source
2,045,992,611 2019 State Comptroller of Public Accounts

Wages

Rockwall County
USD ($) Year Source
387,989,362 2019 Texas Workforce Commission

This is some placeholder text that we should either remove or replace with a brief summary about this particular metric. For example, "We update population counts once per year..."

Unemployment Percentage Year Source
7.2 2019 Texas Workforce Commission

This is some placeholder text that we should either remove or replace with a brief summary about this particular metric. For example, "We update population counts once per year..."

Rainfall (inches) Year Source
38.6 2019 National Oceanic and Atmospheric Administration

This is some placeholder text that we should either remove or replace with a brief summary about this particular metric. For example, "We update population counts once per year..."

Min. (January Average, °F) Max. (July Average, °F) Year Source
33.0 96.0 2019 National Oceanic and Atmospheric Administration

This is some placeholder text that we should either remove or replace with a brief summary about this particular metric. For example, "We update population counts once per year..."

Land Area

Rockwall County
Area (square miles) Year Source
127.0 2019 United States Census Bureau

Total Area

Rockwall County
Area (square miles) Year Source
148.7 2019 United States Census Bureau