137,044 people (2024 Census estimate, +25.5% since 2020)
127 square miles of land · 1,077 people per square mile
“Highest” and “lowest” are just order, not grades: a high rank for poverty or hazard losses means more of it. Each figure's source is in its section below.
7 active community water systems list Rockwall County in the area they serve, reporting 136,715 people served in all (a system that crosses county lines counts its whole population).
| CITY OF ROCKWALL buys surface water · local government · TX1990001 | 55,250 served |
| CITY OF FATE buys surface water · local government · TX1990006 | 29,285 served |
| CITY OF ROYSE CITY buys surface water · local government · TX1990002 | 24,313 served |
| CITY OF HEATH buys surface water · local government · TX1990014 | 10,464 served |
| R C H WSC buys surface water · local government · TX1990012 | 9,204 served |
| BLACKLAND WSC buys surface water · local government · TX1990004 | 6,171 served |
| MOUNT ZION WSC buys surface water · local government · TX1990010 | 2,028 served |
Source: U.S. EPA Safe Drinking Water Information System (SDWIS), active community systems, . Look up any system's violations and test results with EPA's search using its ID.
About 210 people were held in Rockwall County's jail, in Vera's latest figure (2026). In 2021 it was about 198.
Source: Vera Institute of Justice, Incarceration Trends (built from federal Bureau of Justice Statistics jail surveys). Counties without their own jail, or that share one, may show no figure.
2 school districts have their office in Rockwall County. School taxes are usually the largest part of a property tax bill.
Spent $327.4 million — $178 million to run schools, about $9,681 per student, plus $113.8 million on buildings and equipment. Money in: $198.5 million local (mostly property tax), $35.2 million state, $17.5 million federal. Long-term debt: $587.6 million.
Spent $202.3 million — $90.8 million to run schools, about $10,652 per student, plus $93.7 million on buildings and equipment. Money in: $66.9 million local (mostly property tax), $47.3 million state, $7.8 million federal. Long-term debt: $353.3 million.
Source: U.S. Census Bureau, 2023 Annual Survey of School System Finances. Districts are listed by the county of their main office; some serve neighboring counties too.
Source: County Health Rankings & Roadmaps 2025 (University of Wisconsin Population Health Institute), which gathers federal data (CDC, Census, and others); measures cover different recent years. Blank lines aren't reported for small counties.
Overall risk: Relatively Low compared with other U.S. counties. FEMA estimates natural hazards cost Rockwall County about $46.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
107 bridges in Rockwall County: 58 in good condition, 47 fair, and 2 poor (1.9%). “Poor” means a main part — the deck, the beams, or the supports — is rated 4 or lower on the federal 0–9 scale. It doesn't mean unsafe to drive; unsafe bridges are closed.
| IH 30 over EAST FORK TRINITY RIVER · built 1995 | 82,077 vehicles a day |
| IH 30 WB over SABINE CREEK RELIEF · built 1956 | 346 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $8.5 million of work in Rockwall County in fiscal 2025, about $78 per resident — to the county, cities, schools, hospitals, nonprofits and others.
Source: USAspending.gov, grants by place of performance, fiscal 2025 (Oct. 2024 to Sept. 2025). Search it by county to see each award.
From Grants.gov: posted grants listing county governments as eligible, soonest deadline first; research-only and overseas programs left out; list updated 2026-10-13, refreshed weekly. 62 are open in all. Cities, towns, school districts and nonprofits have their own lists there.
General election: Tuesday, November 3, 2026. Last day to register to vote: 2026-10-05. Early voting: 2026-10-19 to 2026-10-30. Mail ballot application must be received: 2026-10-23. Election Day: 2026-11-03.
Source: Texas Secretary of State, Sept. 28, 2026 · VoteTexas.gov — early voting · VoteTexas.gov
The budget, property tax rates, audits, local officials and offices for Rockwall County come from the county's own records, which we haven't gathered — not gathered, never hidden. See what a full county site looks like, or ask to have Rockwall County built: brayden.ozark@gmail.com.
More of Texas: the state government and every county in Texas.
Nearby counties: Kaufman County (22 mi) · Collin County (23 mi) · Dallas County (23 mi) · Hunt County (24 mi) · Rains County (36 mi) · Van Zandt County (41 mi).