19,942 people (2024 Census estimate, −0.6% since 2020)
507 square miles of land · 39 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.
12 active community water systems list Calhoun County in the area they serve, reporting 20,965 people served in all (a system that crosses county lines counts its whole population).
| CITY OF PORT LAVACA buys surface water · local government · TX0290002 | 12,000 served |
| GBRA CALHOUN COUNTY RURAL WATER SYSTEM buys surface water · local government · TX0290007 | 4,482 served |
| CITY OF SEADRIFT groundwater · local government · TX0290004 | 1,577 served |
| PORT OCONNOR IMPROVEMENT DISTRICT groundwater · local government · TX0290065 | 1,139 served |
| CITY OF POINT COMFORT surface water · local government · TX0290001 | 759 served |
| SUNILANDINGS UTILITIES groundwater · private · TX0290056 | 342 served |
| PORT ALTO HOA DISTRICT 1 groundwater · private · TX0290027 | 213 served |
| SHOALWATER FLATS ASSOCIATION groundwater · private · TX0290036 | 171 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 86 people were held in Calhoun County's jail, in Vera's latest figure (2026). In 2021 it was about 83.
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.
1 school district has its office in Calhoun County. School taxes are usually the largest part of a property tax bill.
Spent $62.4 million — $49.4 million to run schools, about $14,004 per student, plus $3.8 million on buildings and equipment. Money in: $38.7 million local (mostly property tax), $5.1 million state, $10.4 million federal. Long-term debt: $15.2 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 Calhoun County about $21.6 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
104 bridges in Calhoun County: 62 in good condition, 42 fair, and 0 poor (0.0%). “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.
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $14.7 million of work in Calhoun County in fiscal 2025, about $733 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 Calhoun 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 Calhoun County built: brayden.ozark@gmail.com.
More of Texas: the state government and every county in Texas.
Nearby counties: Aransas County (32 mi) · Victoria County (34 mi) · Jackson County (36 mi) · Refugio County (36 mi) · Matagorda County (42 mi) · Goliad County (54 mi).