412,339 people (2024 Census estimate, −0.5% since 2020)
1,229 square miles of land · 335 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.
14 active community water systems list Mobile County in the area they serve, reporting 461,361 people served in all (a system that crosses county lines counts its whole population).
| MOBILE, BD. OF W&S COMM. OF THE CITY OF surface water · local government · AL0001005 | 279,000 served |
| MOBILE COUNTY WATER & FIRE PRO AUTHORITY groundwater · local government · AL0001002 | 39,573 served |
| SOUTH ALABAMA UTILITIES WATER SYSTEM groundwater · local government · AL0000967 | 39,249 served |
| PRICHARD WATER WORKS BOARD buys surface water · local government · AL0001015 | 29,190 served |
| SARALAND, BD OF W&S COMMISSIONERS groundwater · local government · AL0001021 | 13,827 served |
| GRAND BAY WATER WORKS BOARD groundwater · local government · AL0000983 | 11,100 served |
| ST. ELMO-IRVINGTON WATER AUTHORITY groundwater · local government · AL0001031 | 10,284 served |
| BAYOU LA BATRE, THE UB OF THE CITY OF groundwater · local government · AL0000957 | 8,100 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 1,453 people were held in Mobile County's jail, in Vera's latest figure (2024), or 559 per 100,000 residents ages 15–64. In 2019 it was about 1,327.
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 Mobile County. School taxes are usually the largest part of a property tax bill.
Spent $775.6 million — $689.1 million to run schools, about $13,258 per student, plus $62 million on buildings and equipment. Money in: $209.7 million local (mostly property tax), $394.2 million state, $189.3 million federal. Long-term debt: $366 million.
Spent $47.2 million — $41.3 million to run schools, about $12,305 per student, plus $3.1 million on buildings and equipment. Money in: $18 million local (mostly property tax), $26.1 million state, $4.2 million federal. Long-term debt: $73.2 million.
Spent $31 million — $24.1 million to run schools, about $9,068 per student, plus $6.3 million on buildings and equipment. Money in: $4 million local (mostly property tax), $20.1 million state, $6.6 million federal. Long-term debt: $4.5 million.
Spent $20.3 million — $18.6 million to run schools, about $12,412 per student, plus $1.4 million on buildings and equipment. Money in: $5.9 million local (mostly property tax), $13.1 million state, $2.5 million federal. Long-term debt: $4.2 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 High compared with other U.S. counties. FEMA estimates natural hazards cost Mobile County about $298.2 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
609 bridges in Mobile County: 130 in good condition, 464 fair, and 15 poor (2.5%). “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.
| MCGREGOR AVE over ESLAVA CREEK · built 1964 | 19,384 vehicles a day |
| US 90 WB over TENSAW/SPANISH RIVER · built 1965 | 13,355 vehicles a day |
| SR 193 over MISS. SOUND * D.I. BAY · built 1982 | 5,641 vehicles a day |
| W SWEENEYS LN over TOULMIN SPRINGS · built 1975 | 3,072 vehicles a day |
| TURNER ROAD over GUM TREE BRANCH · built 1973 | 2,512 vehicles a day |
| WASSON AVE over GUM TREE BRANCH · built 1948 | 2,369 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $281.6 million of work in Mobile County in fiscal 2025, about $679 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 Alabama 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 Mobile 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 Mobile County built: brayden.ozark@gmail.com.
More of Alabama: the state government and every county in Alabama.
Nearby counties: Baldwin County (27 mi) · George County, MS (29 mi) · Jackson County, MS (30 mi) · Greene County, MS (45 mi) · Washington County (50 mi) · Escambia County, FL (53 mi).