147,002 people (2024 Census estimate, +2.5% since 2020)
723 square miles of land · 203 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.
16 active community water systems list Jackson County in the area they serve, reporting 132,595 people served in all (a system that crosses county lines counts its whole population).
| WEST JACKSON CO UTILITY DIST groundwater · local government · MS0300156 | 28,544 served |
| CITY OF OCEAN SPRINGS groundwater · local government · MS0300005 | 26,168 served |
| CITY OF PASCAGOULA groundwater · local government · MS0300006 | 22,686 served |
| CITY OF GAUTIER groundwater · local government · MS0300004 | 22,253 served |
| CITY OF MOSS POINT groundwater · local government · MS0300008 | 12,524 served |
| JACKSON CO UTILITY AUTHORITY-EAST groundwater · local government · MS0300166 | 6,270 served |
| JACKSON CO UTILITY AUTHORITY-WEST groundwater · local government · MS0300164 | 6,178 served |
| GULF PARK groundwater · private · MS0300044 | 4,813 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 350 people were held in Jackson County's jail, in Vera's latest figure (2021), or 375 per 100,000 residents ages 15–64. In 2016 it was about 366.
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.
4 school districts have their office in Jackson County. School taxes are usually the largest part of a property tax bill.
Spent $105.7 million — $97.1 million to run schools, about $10,899 per student, plus $8.3 million on buildings and equipment. Money in: $41 million local (mostly property tax), $56.9 million state, $18.6 million federal. Long-term debt: $8.7 million.
Spent $115.9 million — $103.5 million to run schools, about $15,771 per student, plus $11.7 million on buildings and equipment. Money in: $53.1 million local (mostly property tax), $40.7 million state, $24.2 million federal. Long-term debt: $7.2 million.
Spent $70 million — $62.3 million to run schools, about $10,621 per student, plus $7.4 million on buildings and equipment. Money in: $23.8 million local (mostly property tax), $37.3 million state, $11.3 million federal. Long-term debt: $12.7 million.
Spent $33.4 million — $28 million to run schools, about $17,841 per student, plus $5.2 million on buildings and equipment. Money in: $10.2 million local (mostly property tax), $12.5 million state, $9.3 million federal. Long-term debt: $9.5 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 Jackson County about $110.9 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
270 bridges in Jackson County: 188 in good condition, 74 fair, and 8 poor (3.0%). “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.
| HANSHAW ROAD over DAVIS BAYOU · built 1991 | 9,900 vehicles a day |
| WADE-VANCLEAVE RD over PASCAGOULA RIVER · built 1959 | 2,100 vehicles a day |
| MARTIN ROAD over BAYOU-RELIEF · built 1995 | 1,700 vehicles a day |
| TUCKER AVENUE over UNNAMED RELIEF · built 1960 | 1,231 vehicles a day |
| TANNER WILLIAMS RD over ESCATAWPA RV · built 1962 | 1,009 vehicles a day |
| CONSTITUTION ROAD over COLLINS CREEK · built 1996 | 1,000 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $165.7 million of work in Jackson County in fiscal 2025, about $1,156 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 Jackson 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 Jackson County built: brayden.ozark@gmail.com.
More of Mississippi: the state government and every county in Mississippi.
Nearby counties: Harrison County (27 mi) · George County (28 mi) · Mobile County, AL (30 mi) · Stone County (37 mi) · Hancock County (51 mi) · Greene County (52 mi).