13,839 people (2024 Census estimate, −0.2% since 2020)
404 square miles of land · 34 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.
4 active community water systems list Walthall County in the area they serve, reporting 19,069 people served in all (a system that crosses county lines counts its whole population).
| MAGEES CREEK W/A-NORTH groundwater · public/private · MS0740076 | 9,792 served |
| LEXIE WATER ASSOCIATION, INC. groundwater · public/private · MS0740004 | 4,290 served |
| IMPROVE WATER ASSOCIATION groundwater · public/private · MS0740002 | 2,666 served |
| TOWN OF TYLERTOWN groundwater · local government · MS0740005 | 2,321 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 23 people were held in Walthall County's jail, in Vera's latest figure (2023), or 273 per 100,000 residents ages 15–64. In 2018 it was about 28.
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 Walthall County. School taxes are usually the largest part of a property tax bill.
Spent $25.9 million — $21.5 million to run schools, about $12,756 per student, plus $4.3 million on buildings and equipment. Money in: $6.2 million local (mostly property tax), $11.2 million state, $9.6 million federal.
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 Walthall County about $7 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
157 bridges in Walthall County: 128 in good condition, 27 fair, and 2 poor (1.3%). “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.
| ROBEY JEFFERSON RD over BRANCH OF MAGEES CREEK · built 1970 | 100 vehicles a day |
| SUNLIGHT ROAD over BRANCH · built 1960 | 60 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $3.9 million of work in Walthall County in fiscal 2025, about $284 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.
Registration deadlines, early voting and polling places for Mississippi are on the federal site vote.gov, which links to the state's official election office.
The budget, property tax rates, audits, local officials and offices for Walthall 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 Walthall County built: brayden.ozark@gmail.com.
More of Mississippi: the state government and every county in Mississippi.
Nearby counties: Marion County (17 mi) · Pike County (17 mi) · Washington Parish, LA (22 mi) · Lawrence County (27 mi) · Jefferson Davis County (32 mi) · Lincoln County (33 mi).