Napa County, California
Napa County · Napa is the seat · a tasting room is not the hall · Department of Corrections holds the jail · Sacramento is the capital · Napa State Hospital is DSH
Napa is the seat. Sacramento is the capital. A tasting room is not the hall.
Napa County, California, is an original 1850 county, named for the Napa River. Napa is the county seat. Sacramento is the capital of California. Napa is not the capital. St. Helena is not the seat. Yountville is not the seat. Calistoga is not the seat. American Canyon is not the seat. Do not read this page as Autauga-with-vines. Do not read this page as a tasting-room postcard as the government. Prattville is Autauga. A winery facade is a business, not this hall.
Napa, American Canyon, St. Helena, Calistoga, and the Town of Yountville are municipalities — not the whole county government. Angwin, Lake Berryessa remainder, and the unincorporated valley are remainder, not a second seat. Sonoma is west — Santa Rosa is that hall. Solano is south — Fairfield is that hall. Lake is north. Yolo is east.
This page is Side One for the place. The Sheriff’s job — valley remainder patrol, court security, and a jail this badge does not hold — is taught at Office of the Sheriff — Napa County.
Five Supervisors at 1195 Third. They do not sit as the State Assembly.
Napa is a general law county. A five-member Board of Supervisors sits at the Napa County Administration Building, 1195 Third Street, Suite 310 / Chambers Suite 305, Napa, CA 94559. They fund roads, two courthouse doors, and the Sheriff’s budget. They do not hire the Sheriff. The people do. Napa City Council is a city body. The California Legislature sits in Sacramento. Sonoma Board of Supervisors is a different county. None of those is this Board.
Napa Superior Court lists the Historic Courthouse at 825 Brown Street and the Criminal Courthouse at 1111 Third Street, Napa, CA 94559 — (707) 299-1100. Confirm live at napacounty.gov and napa.courts.ca.gov.
The Sheriff is a county officer (California Constitution Article XI; Government Code § 24000). This Sheriff is not on the 2026 gubernatorial table. Elections Code § 1300 (AB 759, 2022) moved sheriff and district attorney to the presidential primary. A sheriff elected in 2022 serves a six-year term; the next regular is the 2028 presidential primary. Napa has no charter that could have locked a gubernatorial-year date before 1 January 2021. Last regular 7 June 2022. Take office at noon on the first Monday after January 1 succeeding election (Gov. Code § 24200). The Governor is 2026. That is a different desk in Sacramento.
The Napa is a river. St. Helena is a city. Sonoma is a different county.
State Route 29, Highway 221, and Highway 12 meet on this map. The Napa River is water, not a St. Helena badge. Lake Berryessa is a lake, not a second county. Napa County Airport sits near this Sheriff’s house — it is an airport, not the hall. Sonoma is west. Solano is south. Staff who paste a tasting-room photograph onto Third Street, or treat St. Helena as the seat, or file Napa as the capital, or rewrite this county as Autauga-with-vines, are on the wrong county.
How a valley public finds Third Street, Airport Boulevard, and 2210 Napa-Vallejo Highway
Board of Supervisors: 1195 Third Street, Napa. Elections: 1127 First Street, Suite E (SOS also lists 1125 Third Street, first floor) — (707) 253-4321 — confirm the live door at napacounty.gov/396/Elections. Sheriff: 1535 Airport Boulevard, Napa, CA 94558 — (707) 253-4509. Jail (Department of Corrections): 2210 Napa-Vallejo Highway. Courts: 825 Brown Street and 1111 Third Street. Confirm live at napacounty.gov/1292/Sheriff and napa.courts.ca.gov. A student who only knows a vineyard photograph, or a Sacramento photograph as this county, or treats Napa City Hall as the jail, has not found this campus.
Department of Corrections holds 2210. This Sheriff does not. Napa PD does not. Napa State Hospital does not.
Crime in unincorporated Napa — Angwin, Lake Berryessa remainder, and the valley outside city limits — is this Sheriff. Crime in Napa the city is often Napa Police at 1539 First Street. Crime in St. Helena and Calistoga is often those city badges. American Canyon Police and Yountville patrol are Sheriff contract shops the office actually posts — deputies in those assignments, not a second seat. This Sheriff is not Napa PD.
The jail is the split. Since 1975, Napa County Department of Corrections has managed the adult jail — unique among California’s fifty-eight counties. The downtown Hall of Justice house at 1125 Third Street closed. The live house is 2210 Napa-Vallejo Highway (Highway 221), opened 2025. Do not invent this Sheriff as that jailer. Do not invent 1125 Third as the live door.
Napa State Hospital is DSH — not this Sheriff, not DOC, not CDCR as this oval. CHP is a state badge. Do not send a family looking for a county booking to Napa PD, to a tasting room, or to a DSH gate.
Care without inventing a tasting room as this hall
A peace order served in Angwin remainder. A court-ordered transport from 2210 (DOC) to 1111 Third Street without becoming Napa PD — Sheriff court security and inmate transportation the office actually posts. Civil process at 1535 Airport Boulevard. Do not invent a church. Do not invent a winery as this oval. Do not invent Sacramento as this hall.
What Napa actually watches
Court calendar on Third Street and Brown Street. A wreck on 29. High water on the Napa River. Fire toward Berryessa. Coordination with Napa PD, St. Helena PD, Calistoga PD, CHP, DOC, and DSH without becoming those departments. Grapes are agriculture. A hospital wall is DSH. Neither is a tasting room as this oval.
Napa civic snapshot (verify official sources)
- State: California · County: Napa · Seat: Napa · Capital of California: Sacramento
- Map: Napa · American Canyon · St. Helena · Yountville · Calistoga · Angwin remainder · SR 29 · Highway 221
- Not a tasting room as the hall · Not the capital · Not Napa PD as this oval · Not this Sheriff as the jailer · Not Autauga-with-vines
- Board: five Supervisors at 1195 Third Street
- Sheriff clock: not 2026 · last regular 2022 · next regular 2028 presidential primary · six-year bridge from AB 759
- Jail: 2210 Napa-Vallejo Highway — Department of Corrections · this Sheriff does not hold it · Napa State Hospital is DSH
Orientation adapted from the California Constitution Article XI, Elections Code § 1300, Government Code §§ 24000, 24200, 25304, and 26600, Napa County official pages (napacounty.gov Sheriff and Elections), Napa Superior Court locations, Civil Grand Jury detention statements, and the Secretary of State for education. The Sheriff of record is whatever those sources say today. Confirm HQ versus court versus DOC jail, DSH versus this badge, and city PD versus this oval, on official pages before you travel.
What Napa is not, as this county
- Not the capital of California. Sacramento is.
- Not a tasting room as the county government. Not St. Helena. Not Yountville. Not Calistoga.
- Not Napa Police as this oval. Not St. Helena PD. Not CHP.
- Not the jailer — Department of Corrections is. Not Napa State Hospital as this oval.
- Not Autauga-with-vines. Not Sonoma-with-a-rename.
- Not the Governor (that desk is 2026 in Sacramento).
- Not a campaign flyer.