11,059 people (2024 Census estimate, −1.9% since 2020)
408 square miles of land · 27 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.
8 active community water systems list Jefferson Davis County in the area they serve, reporting 14,040 people served in all (a system that crosses county lines counts its whole population).
| GOOD HOPE WATER ASSOCIATION groundwater · public/private · MS0330004 | 2,809 served |
| DOUBLE PONDS WATER ASSOCIATION groundwater · public/private · MS0330003 | 2,500 served |
| NORTHEAST JEFF DAVIS W/A groundwater · public/private · MS0330007 | 2,400 served |
| TOWN OF PRENTISS groundwater · local government · MS0330008 | 1,882 served |
| LILY ROSE W/A #1 groundwater · public/private · MS0330005 | 1,675 served |
| LILY ROSE W/A #2 groundwater · public/private · MS0330009 | 1,275 served |
| TOWN OF BASSFIELD groundwater · local government · MS0330001 | 1,199 served |
| CARSON CENTRAL WATER ASSN groundwater · public/private · MS0330002 | 300 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 25 people were held in Jefferson Davis County's jail, in Vera's latest figure (2019), or 360 per 100,000 residents ages 15–64. In 2014 it was about 14.
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 Jefferson Davis County. School taxes are usually the largest part of a property tax bill.
Spent $27.6 million — $19.4 million to run schools, about $15,747 per student, plus $7.9 million on buildings and equipment. Money in: $7.5 million local (mostly property tax), $8.7 million state, $9.1 million federal. Long-term debt: $6.6 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 Jefferson Davis County about $4.7 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Low; social vulnerability: Very High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
141 bridges in Jefferson Davis County: 108 in good condition, 28 fair, and 5 poor (3.5%). “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.
| SR 184 over WHITE SAND CREEK · built 1937 | 670 vehicles a day |
| SUMRALL ROAD over BOUIE CREEK · built 1984 | 120 vehicles a day |
| GOLDEN PINES over BRANCH · built 1984 | 100 vehicles a day |
| S PLEASANT HILL RD over WHITE SAND CREEK · built 1986 | 60 vehicles a day |
| WILLIAMSON MILL RD over WHITESAND CREEK · built 1984 | 60 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $1.1 million of work in Jefferson Davis County in fiscal 2025, about $93 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 Jefferson Davis 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 Jefferson Davis County built: brayden.ozark@gmail.com.
More of Mississippi: the state government and every county in Mississippi.
Nearby counties: Lawrence County (17 mi) · Covington County (17 mi) · Marion County (23 mi) · Simpson County (24 mi) · Lamar County (32 mi) · Walthall County (32 mi).