175,601 people (2024 Census estimate, +0.6% since 2020)
458 square miles of land · 383 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.
48 active community water systems list Scott County in the area they serve, reporting 166,075 people served in all (a system that crosses county lines counts its whole population).
| IOWA-AMERICAN WTR CO-DAVENPORT surface water · private · IA8222001 | 147,720 served |
| ELDRIDGE WATER SUPPLY groundwater · local government · IA8230008 | 6,726 served |
| PARK VIEW WATER & SANITARY DISTRICT groundwater · private · IA8200855 | 2,389 served |
| WALCOTT WATERWORKS groundwater · local government · IA8285058 | 1,551 served |
| BUFFALO WATER SUPPLY groundwater · local government · IA8218050 | 1,176 served |
| PRINCETON WATER SUPPLY groundwater · local government · IA8273061 | 923 served |
| LONG GROVE MUNI WATER SUPPLY groundwater · local government · IA8251096 | 838 served |
| IOWA AMERICAN WATER DONAHUE groundwater · local government · IA8227045 | 335 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 316 people were held in Scott County's jail, in Vera's latest figure (2023), or 287 per 100,000 residents ages 15–64. In 2018 it was about 285.
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 Scott County. School taxes are usually the largest part of a property tax bill.
Spent $223.9 million — $197.8 million to run schools, about $13,995 per student, plus $16.6 million on buildings and equipment. Money in: $89.9 million local (mostly property tax), $134.3 million state, $41.5 million federal. Long-term debt: $3.5 million.
Spent $72.4 million — $61.6 million to run schools, about $10,618 per student, plus $6.9 million on buildings and equipment. Money in: $34.9 million local (mostly property tax), $44.9 million state, $2.9 million federal. Long-term debt: $39 million.
Spent $62.2 million — $54.3 million to run schools, about $11,724 per student, plus $4.6 million on buildings and equipment. Money in: $29.2 million local (mostly property tax), $34.4 million state, $4.8 million federal. Long-term debt: $24.7 million.
Spent $50 million — $39.4 million to run schools, about $11,388 per student, plus $9 million on buildings and equipment. Money in: $21.4 million local (mostly property tax), $25.8 million state, $3.2 million federal. Long-term debt: $8.5 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 Scott County about $66.5 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
291 bridges in Scott County: 104 in good condition, 158 fair, and 29 poor (10.0%). “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.
| US 67 over MISS RVR RR & IA 461 · built 1940 | 26,500 vehicles a day |
| EASTERN AVE over DUCK CREEK · built 1900 | 15,300 vehicles a day |
| EASTERN AVE over GOOSE CREEK · built 1978 | 10,200 vehicles a day |
| EASTERN AVE over GOOSE CREEK · built 1978 | 6,376 vehicles a day |
| 18TH ST over DUCK CREEK · built 1962 | 4,210 vehicles a day |
| S CLARK ST over BLACKHAWK CREEK · built 1950 | 4,004 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $41.2 million of work in Scott County in fiscal 2025, about $236 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 Iowa 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 Scott 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 Scott County built: brayden.ozark@gmail.com.
More of Iowa: the state government and every county in Iowa.
Nearby counties: Rock Island County, IL (12 mi) · Clinton County (18 mi) · Cedar County (28 mi) · Muscatine County (28 mi) · Mercer County, IL (31 mi) · Henry County, IL (32 mi).