20,617 people (2024 Census estimate, −2.3% since 2020)
877 square miles of land · 24 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.
20 active community water systems list Union Parish in the area they serve, reporting 32,769 people served in all (a system that crosses county lines counts its whole population).
| TOWN OF FARMERVILLE WATER SYSTEM groundwater · local government · LA1111005 | 5,352 served |
| DARBONNE WS SOUTH groundwater · private · LA1111023 | 3,261 served |
| DARBONNE WS NORTH groundwater · private · LA1111024 | 3,186 served |
| HOLMESVILLE WATER SYSTEM groundwater · private · LA1111008 | 2,406 served |
| POINT WILHITE WS groundwater · private · LA1111012 | 2,292 served |
| TOWN OF BERNICE WATER SYSTEM groundwater · local government · LA1111001 | 1,863 served |
| ROCKY BRANCH WATER SYSTEM groundwater · local government · LA1111013 | 1,650 served |
| LINVILLE-HAILE WATER SYSTEM groundwater · private · LA1111010 | 1,635 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 206 people were held in Union Parish's jail, in Vera's latest figure (2021), or 1,628 per 100,000 residents ages 15–64. In 2016 it was about 293.
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 Union Parish. School taxes are usually the largest part of a property tax bill.
Spent $37.7 million — $29.5 million to run schools, about $15,421 per student, plus $1.2 million on buildings and equipment. Money in: $20.6 million local (mostly property tax), $13.6 million state, $11 million federal. Long-term debt: $38.1 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 Parish about $10.6 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.
121 bridges in Union Parish: 25 in good condition, 83 fair, and 13 poor (10.7%). “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.
| LA0002 over CREEK · built 1931 | 6,236 vehicles a day |
| LA0015 over CREEK · built 1953 | 5,557 vehicles a day |
| LA0015 over CREEK · built 1953 | 5,557 vehicles a day |
| LA0151 over STOWE CREEK · built 1961 | 527 vehicles a day |
| LA0151 over STOWE CR REL BR · built 1961 | 527 vehicles a day |
| LA0550 over VILLAGE CREEK · built 1982 | 464 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $334,373 of work in Union Parish in fiscal 2025, about $16 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 Louisiana 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 Parish 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 Parish built: brayden.ozark@gmail.com.
More of Louisiana: the state government and every county in Louisiana.
Nearby counties: Lincoln Parish (23 mi) · Union County, AR (27 mi) · Ouachita Parish (27 mi) · Morehouse Parish (33 mi) · Claiborne Parish (36 mi) · Jackson Parish (38 mi).