133,534 people (2024 Census estimate, +5.2% since 2020)
290 square miles of land · 460 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.
19 active community water systems list Ascension Parish in the area they serve, reporting 31,987 people served in all (a system that crosses county lines counts its whole population).
| CITY OF GONZALES WATER SYSTEM groundwater · local government · LA1005030 | 16,806 served |
| PARISH UTILITIES OF ASCENSION surface water · local government · LA1005035 | 9,732 served |
| ASCENSION CONSOLIDATED UTILITY DIST 1 buys surface water · local government · LA1005045 | 2,229 served |
| ASCENSION PARISH WATER WORKS DISTRICT 2 buys groundwater · local government · LA1005001 | 1,353 served |
| DIVERSION WATER - BAYOU ESTATES groundwater · private · LA1005005 | 450 served |
| SHADY OAKS MOBILE HOME PARK WATER SYSTEM groundwater · private · LA1005114 | 192 served |
| CYPRESS TRACE MANUFACTURED HOUSING COMM. groundwater · private · LA1005119 | 140 served |
| WHITE OAKS MANUFACTURED HOUSING COMM. groundwater · private · LA1005147 | 138 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 488 people were held in Ascension Parish's jail, in Vera's latest figure (2023), or 570 per 100,000 residents ages 15–64. In 2018 it was about 486.
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 Ascension Parish. School taxes are usually the largest part of a property tax bill.
Spent $437.5 million — $349.5 million to run schools, about $14,108 per student, plus $73.2 million on buildings and equipment. Money in: $234.3 million local (mostly property tax), $130.2 million state, $44.5 million federal. Long-term debt: $331.6 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: Relatively Moderate compared with other U.S. counties. FEMA estimates natural hazards cost Ascension Parish about $120.1 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
216 bridges in Ascension Parish: 90 in good condition, 100 fair, and 26 poor (12.0%). “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.
| LA0427 over BAYOU MANCHAC · built 1972 | 11,384 vehicles a day |
| LA0431 over NEW RIVER · built 1982 | 9,608 vehicles a day |
| LA0431 over BLACK BAYOU · built 1983 | 9,608 vehicles a day |
| LA0431 over VILLAR CANAL · built 1971 | 9,608 vehicles a day |
| LA0431 over VILLAR DRAINAGE · built 1971 | 9,608 vehicles a day |
| LA0621 over BLACK BAYOU · built 1971 | 7,519 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $167.2 million of work in Ascension Parish in fiscal 2025, about $1,322 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 Ascension 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 Ascension Parish built: brayden.ozark@gmail.com.
More of Louisiana: the state government and every county in Louisiana.
Nearby counties: St. James Parish (14 mi) · Livingston Parish (20 mi) · Assumption Parish (23 mi) · St. John the Baptist Parish (26 mi) · East Baton Rouge Parish (26 mi) · Iberville Parish (27 mi).