28,425 people (2024 Census estimate, +4.3% since 2020)
192 square miles of land · 148 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.
5 active community water systems list West Baton Rouge Parish in the area they serve, reporting 30,651 people served in all (a system that crosses county lines counts its whole population).
| WEST BATON ROUGE WATER WORKS DISTRICT 2 groundwater · local government · LA1121018 | 13,437 served |
| CITY OF PORT ALLEN WATER SYSTEM groundwater · local government · LA1121014 | 6,759 served |
| WBR DISTRICT 4 -SECTION ROAD WINTERVILLE groundwater · local government · LA1121027 | 5,571 served |
| WBR PUBLIC UTILITIES groundwater · local government · LA1121008 | 4,329 served |
| WBR DISTRICT 4 - ARBROTH buys groundwater · local government · LA1121026 | 555 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 105 people were held in West Baton Rouge Parish's jail, in Vera's latest figure (2021), or 582 per 100,000 residents ages 15–64. In 2016 it was about 552.
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 West Baton Rouge Parish. School taxes are usually the largest part of a property tax bill.
Spent $86.7 million — $78 million to run schools, about $18,002 per student, plus $3.3 million on buildings and equipment. Money in: $61.8 million local (mostly property tax), $19.7 million state, $12.5 million federal. Long-term debt: $79.3 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 West Baton Rouge Parish about $13.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
72 bridges in West Baton Rouge Parish: 24 in good condition, 38 fair, and 10 poor (13.9%). “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.
| I0010 over LA 415 · built 1969 | 41,644 vehicles a day |
| LA0001 over PORT ALLEN CANAL · built 1960 | 25,347 vehicles a day |
| LA0001 over MO PACIFIC RR · built 1952 | 25,347 vehicles a day |
| US0190 over LA 415/M P RR @ LOBDELL · built 1940 | 12,262 vehicles a day |
| LA0076 over CHALPIN BAYOU · built 1980 | 7,562 vehicles a day |
| LA0076 over STREAM NO NAME · built 1930 | 6,347 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $65 million of work in West Baton Rouge Parish in fiscal 2025, about $2,391 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 West Baton Rouge 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 West Baton Rouge Parish built: brayden.ozark@gmail.com.
More of Louisiana: the state government and every county in Louisiana.
Nearby counties: Iberville Parish (14 mi) · East Baton Rouge Parish (14 mi) · Pointe Coupee Parish (24 mi) · West Feliciana Parish (29 mi) · Ascension Parish (30 mi) · St. Martin Parish (30 mi).