5,099 people (2024 Census estimate, −3.8% since 2020)
145,769 square miles of land · 0 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.
27 active community water systems list Yukon-Koyukuk Census Area in the area they serve, reporting 5,520 people served in all (a system that crosses county lines counts its whole population).
| FT. YUKON PUBLIC WATER SYSTEM groundwater (surface-influenced) · tribal · AK2360256 | 665 served |
| GALENA WTP1 - CITY groundwater · tribal · AK2360272 | 490 served |
| NENANA MUNICIPAL WATER groundwater · tribal · AK2390065 | 486 served |
| MCGRATH WATER SYSTEM surface water · tribal · AK2280155 | 341 served |
| HUSLIA PUBLIC WATER SYSTEM groundwater · tribal · AK2300191 | 323 served |
| GALENA WTP2 - GILA groundwater · tribal · AK2360159 | 290 served |
| TOO'GHA INC - IN TANANA surface water · tribal · AK2360109 | 271 served |
| NULATO RIVER WELL groundwater · tribal · AK2360785 | 245 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.
No county jail figure in the national data for Yukon-Koyukuk Census Area — not gathered, never hidden. Some counties share a regional jail or have none.
5 school districts have their office in Yukon-Koyukuk Census Area. School taxes are usually the largest part of a property tax bill.
Spent $50.6 million — $46.9 million to run schools, about $6,532 per student, plus $3.3 million on buildings and equipment. Money in: $1.3 million local (mostly property tax), $48 million state, $2.9 million federal.
Spent $16 million — $15.3 million to run schools, about $8,241 per student, plus $643,000 on buildings and equipment. Money in: $323,000 local (mostly property tax), $14.2 million state, $1.2 million federal.
Spent $12.3 million — $11.5 million to run schools, about $37,660 per student, plus $753,000 on buildings and equipment. Money in: $264,000 local (mostly property tax), $6.5 million state, $4.4 million federal.
Spent $19.3 million — $15.1 million to run schools, about $76,782 per student, plus $4.2 million on buildings and equipment. Money in: $206,000 local (mostly property tax), $5.4 million state, $8.7 million federal.
Spent $1.6 million — $1.6 million to run schools, about $53,552 per student, plus $33,000 on buildings and equipment. Money in: $15,000 local (mostly property tax), $851,000 state, $159,000 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: Relatively Low compared with other U.S. counties. FEMA estimates natural hazards cost Yukon-Koyukuk Census Area about $12.4 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.
94 bridges in Yukon-Koyukuk Census Area: 41 in good condition, 45 fair, and 8 poor (8.5%). “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.
| IRR:STEESE HIGHWAY over CROOKED CREEK · built 1957 | 110 vehicles a day |
| DALTON HIGHWAY over HAMMOND RIVER · built 1972 | 110 vehicles a day |
| IRR: AIRFIELD RD over GOLD CREEK · built 1972 | 86 vehicles a day |
| STERLING L/OPHIR over TAKOTNA RIVER · built 1941 | 45 vehicles a day |
| STERLING L/OPHIR over CALIFORNIA CREEK · built 1937 | 45 vehicles a day |
| STERLING L/OPHIR over SPRUCE CREEK · built 1964 | 45 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $170.6 million of work in Yukon-Koyukuk Census Area in fiscal 2025, about $31,924 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 Alaska 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 Yukon-Koyukuk Census Area 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 Yukon-Koyukuk Census Area built: brayden.ozark@gmail.com.
More of Alaska: the state government and every county in Alaska.
Nearby counties: Denali Borough (125 mi) · Fairbanks North Star Borough (154 mi) · Matanuska-Susitna Borough (223 mi) · Southeast Fairbanks Census Area (262 mi) · Northwest Arctic Borough (268 mi) · North Slope Borough (286 mi).