160,573 people (2024 Census estimate, +2.2% since 2020)
775 square miles of land · 207 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.
35 active community water systems list Rankin County in the area they serve, reporting 190,156 people served in all (a system that crosses county lines counts its whole population).
| CITY OF BRANDON groundwater · local government · MS0610003 | 31,852 served |
| CITY OF FLOWOOD groundwater · local government · MS0610075 | 31,574 served |
| CITY OF PEARL groundwater · local government · MS0610017 | 27,115 served |
| PRVWSD-PELAHATCHIE BAY groundwater · state · MS0610036 | 11,790 served |
| FANNIN WATER ASSN-NORTH groundwater · public/private · MS0610008 | 7,690 served |
| CITY OF RICHLAND groundwater · local government · MS0610023 | 7,000 served |
| GREENFIELD WATER ASSOCIATION groundwater · public/private · MS0610011 | 6,088 served |
| TOWN OF FLORENCE groundwater · local government · MS0610009 | 5,824 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 471 people were held in Rankin County's jail, in Vera's latest figure (2023), or 451 per 100,000 residents ages 15–64. In 2018 it was about 461.
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.
2 school districts have their office in Rankin County. School taxes are usually the largest part of a property tax bill.
Spent $234.1 million — $212 million to run schools, about $11,323 per student, plus $12.8 million on buildings and equipment. Money in: $103.8 million local (mostly property tax), $114.7 million state, $26.5 million federal. Long-term debt: $185 million.
Spent $54.7 million — $45.7 million to run schools, about $10,831 per student, plus $8.2 million on buildings and equipment. Money in: $18.4 million local (mostly property tax), $24.6 million state, $7.8 million federal. Long-term debt: $22 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 Rankin County about $60.2 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
378 bridges in Rankin County: 214 in good condition, 147 fair, and 17 poor (4.5%). “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.
| I 20 E TO I 55 N over OVER I 20 WB · built 1966 | 25,000 vehicles a day |
| I 20 over KCS RR/COUNTY ROAD · built 1967 | 22,000 vehicles a day |
| SR 25 over PLUMMER SLOUGH · built 1981 | 20,000 vehicles a day |
| I 20 over US 80 · built 1966 | 17,500 vehicles a day |
| US 80 over PEARL RIVER RELIEF · built 1938 | 16,000 vehicles a day |
| US 80 over KCS RR · built 1938 | 11,500 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $52 million of work in Rankin County in fiscal 2025, about $331 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 Rankin 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 Rankin County built: brayden.ozark@gmail.com.
More of Mississippi: the state government and every county in Mississippi.
Nearby counties: Simpson County (25 mi) · Madison County (26 mi) · Scott County (26 mi) · Hinds County (30 mi) · Smith County (31 mi) · Copiah County (40 mi).