28,363 people (2024 Census estimate, +2.0% since 2020)
416 square miles of land · 68 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 Union County in the area they serve, reporting 26,974 people served in all (a system that crosses county lines counts its whole population).
| CITY OF NEW ALBANY groundwater · local government · MS0730006 | 8,900 served |
| WALLERVILLE WATER ASSOCIATION groundwater · public/private · MS0730009 | 2,886 served |
| INGOMAR WATER ASSOCIATION groundwater · public/private · MS0730003 | 2,782 served |
| KEOWNVILLE RURAL WATER ASSN groundwater · public/private · MS0730004 | 2,663 served |
| TOWN OF MYRTLE groundwater · local government · MS0730005 | 2,037 served |
| BLUE SPRINGS W/A groundwater · public/private · MS0730002 | 1,840 served |
| HWY 30 WEST WATER ASSOCIATION groundwater · public/private · MS0730025 | 1,716 served |
| MUD CREEK WATER ASSOCIATION #4 groundwater · public/private · MS0730026 | 1,243 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 63 people were held in Union County's jail, in Vera's latest figure (2019), or 362 per 100,000 residents ages 15–64. In 2014 it was about 69.
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 Union County. School taxes are usually the largest part of a property tax bill.
Spent $33.9 million — $30.8 million to run schools, about $10,322 per student, plus $3.1 million on buildings and equipment. Money in: $8.3 million local (mostly property tax), $20.6 million state, $6.6 million federal. Long-term debt: $6 million.
Spent $27.1 million — $24.3 million to run schools, about $11,485 per student, plus $2.6 million on buildings and equipment. Money in: $8.6 million local (mostly property tax), $17.1 million state, $4.4 million federal. Long-term debt: $8.8 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 Union County about $10.5 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Moderate; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
203 bridges in Union County: 94 in good condition, 106 fair, and 3 poor (1.5%). “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 348 over KINGS CREEK · built 1952 | 3,000 vehicles a day |
| SR 178 over OKANNATIE W B · built 1938 | 1,900 vehicles a day |
| PARK ALG RV ACC over CAMP CREEK · built 1998 | 75 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $26.6 million of work in Union County in fiscal 2025, about $958 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 Union 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 Union County built: brayden.ozark@gmail.com.
More of Mississippi: the state government and every county in Mississippi.
Nearby counties: Pontotoc County (18 mi) · Tippah County (19 mi) · Lee County (23 mi) · Benton County (25 mi) · Prentiss County (29 mi) · Lafayette County (29 mi).