507,280 people (2024 Census estimate, +4.0% since 2020)
6,316 square miles of land · 80 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.
25 active community water systems list Washoe County in the area they serve, reporting 483,279 people served in all (a system that crosses county lines counts its whole population).
| TRUCKEE MEADOWS WATER AUTHORITY surface water · local government · NV0000190 | 442,000 served |
| SUN VALLEY GID buys surface water · local government · NV0000211 | 17,000 served |
| GREAT BASIN WATER CO COLD SPRINGS groundwater · private · NV0000207 | 9,910 served |
| INCLINE VILLAGE GID surface water · local government · NV0000158 | 9,313 served |
| GREAT BASIN WATER CO SPANISH SPRINGS groundwater · private · NV0001086 | 1,450 served |
| STEAMBOAT SPRINGS WATERWORKS INC groundwater · private · NV0000282 | 998 served |
| VERDI MEADOWS UTILITY COMPANY INC groundwater · private · NV0000196 | 510 served |
| EMPIRE MINING COMPANY groundwater · private · NV0000042 | 350 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 1,113 people were held in Washoe County's jail, in Vera's latest figure (2024), or 344 per 100,000 residents ages 15–64. In 2019 it was about 1,112.
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.
1 school district has its office in Washoe County. School taxes are usually the largest part of a property tax bill.
Spent $958.5 million — $700.5 million to run schools, about $10,869 per student, plus $206.2 million on buildings and equipment. Money in: $102.5 million local (mostly property tax), $654.2 million state, $103.1 million federal. Long-term debt: $1 billion.
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 High compared with other U.S. counties. FEMA estimates natural hazards cost Washoe County about $273.8 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.
338 bridges in Washoe County: 163 in good condition, 168 fair, and 7 poor (2.1%). “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 80 over CITY STREETS(NUGGET) · built 1966 | 69,000 vehicles a day |
| I 80 over CITY STREETS(NUGGET) · built 1966 | 69,000 vehicles a day |
| KEYSTONE AV over TRUCKEE RIVER · built 1966 | 12,800 vehicles a day |
| ARLINGTON AV over TRUCKEE RVR · built 1938 | 10,000 vehicles a day |
| SIERRA ST over TRUCKEE RVR · built 1937 | 7,600 vehicles a day |
| FR WA09 CANYON WAY over SPRR · built 1962 | 1,300 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $762.4 million of work in Washoe County in fiscal 2025, about $1,567 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 Nevada 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 Washoe 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 Washoe County built: brayden.ozark@gmail.com.
More of Nevada: the state government and every county in Nevada.
Nearby counties: Lassen County, CA (50 mi) · Pershing County (69 mi) · Plumas County, CA (79 mi) · Modoc County, CA (81 mi) · Storey County (90 mi) · Sierra County, CA (91 mi).