4,690 people (2024 Census estimate, −1.0% since 2020)
629 square miles of land · 7 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.
6 active community water systems list Calhoun County in the area they serve, reporting 6,578 people served in all (a system that crosses county lines counts its whole population).
| HAMPTON WATERWORKS groundwater · local government · AR0000070 | 1,906 served |
| CALHOUN COUNTY WATER ASSN groundwater · local government · AR0000919 | 1,591 served |
| SHUMAKER PUBLIC SERVICE CO groundwater · private · AR0000407 | 1,399 served |
| THORNTON WATERWORKS groundwater · local government · AR0000072 | 900 served |
| LOCUST BAYOU WATER ASSOCIATION buys groundwater · local government · AR0000102 | 531 served |
| HARRELL WATERWORKS groundwater · local government · AR0000071 | 251 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 12 people were held in Calhoun County's jail, in Vera's latest figure (2019), or 399 per 100,000 residents ages 15–64. In 2014 it was about 16.
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 $7.9 million — $7.4 million to run schools, about $13,659 per student, plus $312,000 on buildings and equipment. Money in: $1.5 million local (mostly property tax), $5.5 million state, $1.5 million federal. Long-term debt: $7.6 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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Calhoun County about $2.8 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
114 bridges in Calhoun County: 55 in good condition, 48 fair, and 11 poor (9.6%). “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.
| US167 S-4 LM17.76 over US 79-SEC 5 · built 1968 | 8,094 vehicles a day |
| US 278 S10 LM 2.67 over LOCUST BAYOU · built 1950 | 2,200 vehicles a day |
| US278 S10 L12.33 over BRUSHY CREEK · built 1952 | 1,716 vehicles a day |
| SH 8 S-9 LM1.1 over MORO CREEK · built 1941 | 1,700 vehicles a day |
| Calhoun CR19 Z-C over CREEK · built 1977 | 1,153 vehicles a day |
| SH 160 S-7 LM 6.59 over MORO CREEK · built 1963 | 480 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $12.2 million of work in Calhoun County in fiscal 2025, about $2,582 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 2026-11-02. Absentee application due (by mail, email, or fax): 2026-10-27. Absentee ballot hand-delivered by you: last day: 2026-10-30. Election Day — and mailed absentee ballots must arrive: 2026-11-03. Provisional ballot: show your ID by noon: 2026-11-09. General runoff (only where a race needs one): 2026-12-01.
Source: Arkansas Secretary of State, 2026 election calendar · Fayetteville Flyer, Oct. 5, 2026 · sos.arkansas.gov — voting in Arkansas
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 Arkansas: the state government and every county in Arkansas.
Nearby counties: Bradley County (21 mi) · Ouachita County (21 mi) · Union County (27 mi) · Dallas County (29 mi) · Cleveland County (30 mi) · Drew County (46 mi).