7,575 people (2024 Census estimate, +1.4% since 2020)
393 square miles of land · 19 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.
8 active community water systems list Doniphan County in the area they serve, reporting 6,664 people served in all (a system that crosses county lines counts its whole population).
| DONIPHAN CO RWD 5 buys surface water · local government · KS2004307 | 1,457 served |
| WATHENA, CITY OF buys groundwater · local government · KS2004308 | 1,242 served |
| ELWOOD, CITY OF buys groundwater · local government · KS2004302 | 1,114 served |
| TROY, CITY OF groundwater · local government · KS2004304 | 954 served |
| HIGHLAND, CITY OF groundwater · local government · KS2004306 | 917 served |
| DONIPHAN CO RWD 3 buys surface water · local government · KS2004301 | 437 served |
| DONIPHAN CO RWD 6 buys groundwater · local government · KS2004310 | 428 served |
| WHITE CLOUD, CITY OF groundwater · local government · KS2004309 | 115 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 11 people were held in Doniphan County's jail, in Vera's latest figure (2021), or 236 per 100,000 residents ages 15–64. In 2016 it was about 12.
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.
3 school districts have their office in Doniphan County. School taxes are usually the largest part of a property tax bill.
Spent $10.1 million — $8.7 million to run schools, about $12,988 per student, plus $1.5 million on buildings and equipment. Money in: $1.4 million local (mostly property tax), $7.2 million state, $1.2 million federal.
Spent $6.6 million — $6.5 million to run schools, about $17,194 per student, plus $114,000 on buildings and equipment. Money in: $2.3 million local (mostly property tax), $3.8 million state, $326,000 federal.
Spent $5.1 million — $4.7 million to run schools, about $14,124 per student, plus $425,000 on buildings and equipment. Money in: $1.3 million local (mostly property tax), $3.6 million state, $361,000 federal.
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 Doniphan County about $6.1 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.
128 bridges in Doniphan County: 65 in good condition, 52 fair, and 11 poor (8.6%). “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.
| RS 2128 over MISSION CREEK · built 1939 | 2,435 vehicles a day |
| K7 HWY over MILL CREEK · built 1949 | 426 vehicles a day |
| RS 201 over STREAM · built 1959 | 175 vehicles a day |
| LOCAL T-831-2 over C. R.I.& &. RAILROAD · built 1923 | 100 vehicles a day |
| RS 1784 over STREAM · built 1973 | 66 vehicles a day |
| MINOR T-35-1 over SQUAW CREEK · built 1968 | 40 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $6.5 million of work in Doniphan County in fiscal 2025, about $865 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 Kansas 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 Doniphan 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 Doniphan County built: brayden.ozark@gmail.com.
More of Kansas: the state government and every county in Kansas.
Nearby counties: Atchison County (20 mi) · Buchanan County, MO (20 mi) · Holt County, MO (22 mi) · Brown County (23 mi) · Andrew County, MO (23 mi) · Platte County, MO (35 mi).