188,323 people (2024 Census estimate, +9.0% since 2020)
1,238 square miles of land · 152 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.
115 active community water systems list Kootenai County in the area they serve, reporting 166,744 people served in all (a system that crosses county lines counts its whole population).
| COEUR D ALENE CITY OF groundwater · local government · ID1280053 | 54,115 served |
| POST FALLS CITY OF groundwater · local government · ID1280147 | 20,285 served |
| EAST GREENACRES IRRIGATION DIST groundwater · public/private · ID1280064 | 11,165 served |
| ROSS POINT WATER DIST groundwater · public/private · ID1280163 | 10,473 served |
| RATHDRUM CITY OF groundwater · local government · ID1280152 | 10,358 served |
| HAYDEN LAKE IRRIGATION DIST groundwater · public/private · ID1280087 | 9,375 served |
| AVONDALE IRRIGATION DIST groundwater · local government · ID1280008 | 8,785 served |
| HILLSIDE SERVICE AREA groundwater · public/private · ID1280095 | 4,140 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 463 people were held in Kootenai County's jail, in Vera's latest figure (2023), or 407 per 100,000 residents ages 15–64. In 2018 it was about 391.
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 Kootenai County. School taxes are usually the largest part of a property tax bill.
Spent $114.7 million — $109.8 million to run schools, about $10,869 per student, plus $2.5 million on buildings and equipment. Money in: $33.6 million local (mostly property tax), $70.2 million state, $18.5 million federal. Long-term debt: $37.9 million.
Spent $60 million — $56.9 million to run schools, about $9,401 per student, plus $1.8 million on buildings and equipment. Money in: $11.9 million local (mostly property tax), $42.1 million state, $9.3 million federal. Long-term debt: $34.9 million.
Spent $56.2 million — $53.5 million to run schools, about $11,406 per student, plus $2.6 million on buildings and equipment. Money in: $13.7 million local (mostly property tax), $33.2 million state, $7.7 million federal. Long-term debt: $3.8 million.
Spent $3.7 million — $3.7 million to run schools, about $17,481 per student, plus $41,000 on buildings and equipment. Money in: $1 million local (mostly property tax), $2.2 million state, $528,000 federal. Long-term debt: $225,000.
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: Relatively Low compared with other U.S. counties. FEMA estimates natural hazards cost Kootenai County about $45.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Moderate; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
159 bridges in Kootenai County: 51 in good condition, 101 fair, and 7 poor (4.4%). “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 90 WBL over PEDESTRIAN/BIKE PATH · built 1971 | 31,250 vehicles a day |
| BUNCO ROAD over BUNCO RD; US 95 IC · built 2012 | 3,800 vehicles a day |
| STC 1699;CANYON RD over COEUR DALENE RIVER · built 1936 | 680 vehicles a day |
| STC5751;OLD HWY 95 over SIRR & UPRR;S.ATHOL OP · built 1929 | 540 vehicles a day |
| E FRONTAGE ROAD over WOLF LODGE CREEK · built 1934 | 150 vehicles a day |
| FS ROUTE N0. 413 over N.F. CDA RIVER · built 1950 | 50 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $72.1 million of work in Kootenai County in fiscal 2025, about $421 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 Idaho 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 Kootenai 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 Kootenai County built: brayden.ozark@gmail.com.
More of Idaho: the state government and every county in Idaho.
Nearby counties: Benewah County (32 mi) · Spokane County, WA (33 mi) · Shoshone County (44 mi) · Bonner County (45 mi) · Latah County (59 mi) · Pend Oreille County, WA (65 mi).