25,328 people (2024 Census estimate, +1.3% since 2020)
435 square miles of land · 58 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.
10 active community water systems list Bremer County in the area they serve, reporting 55,919 people served in all (a system that crosses county lines counts its whole population).
| IA REGIONAL UTILITIES ASSOC (WAVERLY) groundwater · private · IA0990701 | 37,820 served |
| WAVERLY WATER DEPARTMENT groundwater · local government · IA0990085 | 10,394 served |
| SUMNER WATER SUPPLY groundwater · local government · IA0970006 | 2,030 served |
| DENVER WATER SUPPLY groundwater · local government · IA0915030 | 1,919 served |
| TRIPOLI WATER SUPPLY groundwater · local government · IA0975032 | 1,191 served |
| JANESVILLE WATER SUPPLY buys groundwater · local government · IA0932001 | 1,034 served |
| READLYN WATER SUPPLY groundwater · local government · IA0965073 | 845 served |
| PLAINFIELD WATER SUPPLY groundwater · local government · IA0960045 | 393 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 68 people were held in Bremer County's jail, in Vera's latest figure (2019), or 440 per 100,000 residents ages 15–64. In 2014 it was about 38.
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.
6 school districts have their office in Bremer County. School taxes are usually the largest part of a property tax bill.
Spent $64.2 million — $29.7 million to run schools, about $12,423 per student, plus $32.4 million on buildings and equipment. Money in: $15.5 million local (mostly property tax), $18.9 million state, $2.2 million federal. Long-term debt: $31.9 million.
Spent $14.9 million — $10.7 million to run schools, about $10,741 per student, plus $3.4 million on buildings and equipment. Money in: $5.9 million local (mostly property tax), $7.9 million state, $624,000 federal. Long-term debt: $20.1 million.
Spent $12.2 million — $10.6 million to run schools, about $13,082 per student, plus $994,000 on buildings and equipment. Money in: $6.3 million local (mostly property tax), $6.6 million state, $971,000 federal. Long-term debt: $2.8 million.
Spent $11.4 million — $9.3 million to run schools, about $13,103 per student, plus $1.5 million on buildings and equipment. Money in: $5.3 million local (mostly property tax), $5.9 million state, $962,000 federal. Long-term debt: $4.2 million.
Spent $7.3 million — $5.3 million to run schools, about $10,558 per student, plus $855,000 on buildings and equipment. Money in: $3.8 million local (mostly property tax), $3.8 million state, $253,000 federal. Long-term debt: $8.1 million.
Spent $6.3 million — $5.7 million to run schools, about $14,578 per student, plus $219,000 on buildings and equipment. Money in: $2.9 million local (mostly property tax), $3.5 million state, $504,000 federal. Long-term debt: $1.7 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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Bremer County about $15.3 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.
267 bridges in Bremer County: 139 in good condition, 96 fair, and 32 poor (12.0%). “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.
| 190TH ST over QUARTER SECTION RUN · built 1948 | 1,188 vehicles a day |
| 190TH ST over BASKINS CREEK · built 1971 | 1,149 vehicles a day |
| VIKING AV over BUCK CREEK · built 1958 | 854 vehicles a day |
| FM 260TH ST over CRAIN CREEK · built 1965 | 776 vehicles a day |
| 190TH ST over WAPSIPINICON RIVER · built 1976 | 727 vehicles a day |
| 190TH ST over BUCK CREEK · built 1976 | 727 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $23.4 million of work in Bremer County in fiscal 2025, about $936 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 Bremer 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 Bremer County built: brayden.ozark@gmail.com.
More of Iowa: the state government and every county in Iowa.
Nearby counties: Chickasaw County (19 mi) · Black Hawk County (21 mi) · Butler County (23 mi) · Fayette County (25 mi) · Floyd County (30 mi) · Buchanan County (33 mi).