4,690 people (2024 Census estimate, −5.2% since 2020)
323 square miles of land · 15 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.
7 active community water systems list Gallatin County in the area they serve, reporting 4,726 people served in all (a system that crosses county lines counts its whole population).
| GALLATIN-WHITE WATER DISTRICT buys groundwater · local government · IL0595100 | 1,370 served |
| SHAWNEETOWN buys groundwater · local government · IL0590350 | 1,054 served |
| RIDGWAY buys groundwater · local government · IL0590300 | 874 served |
| EQUALITY buys groundwater · local government · IL0590050 | 652 served |
| NEW HAVEN groundwater · local government · IL0590150 | 424 served |
| OMAHA buys groundwater · local government · IL0590250 | 234 served |
| OLD SHAWNEETOWN groundwater · local government · IL0590200 | 118 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 9 people were held in Gallatin County's jail, in Vera's latest figure (2019), or 322 per 100,000 residents ages 15–64. In 2014 it was about 11.
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 Gallatin County. School taxes are usually the largest part of a property tax bill.
Spent $12.8 million — $11 million to run schools, about $15,645 per student, plus $1.3 million on buildings and equipment. Money in: $3.7 million local (mostly property tax), $8.2 million state, $3.1 million federal. Long-term debt: $114,000.
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 Gallatin County about $6.9 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Very High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
82 bridges in Gallatin County: 65 in good condition, 11 fair, and 6 poor (7.3%). “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.
| ILL 13 over NORTH FORK SALINE R · built 1964 | 3,700 vehicles a day |
| ILL 1 over CRAWFORD CREEK · built 1929 | 1,400 vehicles a day |
| FAS 892 over SALINE RIVER · built 1900 | 350 vehicles a day |
| SBI 13 (UNMARKED) over STREAM · built 1920 | 25 vehicles a day |
| SBI 13 (UNMARKED) over CYPRESS DITCH · built 1940 | 10 vehicles a day |
| TR 3 over ABANDONED RR · built 1900 | 10 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $6 million of work in Gallatin County in fiscal 2025, about $1,204 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 Illinois 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 Gallatin 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 Gallatin County built: brayden.ozark@gmail.com.
More of Illinois: the state government and every county in Illinois.
Nearby counties: Union County, KY (17 mi) · Saline County (17 mi) · Hardin County (17 mi) · White County (22 mi) · Posey County, IN (27 mi) · Hamilton County (28 mi).