County
San Francisco County
This is the county layer. It is often the first stop for assessor, tax collector, recorder, court, social service, election, health, sheriff, and unincorporated-area services.
Starting point
Start with the county layer.
County offices are the usual first stop for records, taxes, courts, elections, public health, social services, sheriff services, and unincorporated-area routing.
Cities inside the county can still control city permits, local code, utilities, business licenses, and city-specific rules.
2025 population
826,079
Land area
46.685 sq mi
Water area
185.214 sq mi
Directory notes
Local layers to keep on the same page.
Property, taxes, and records
For assessed value, exemptions, ownership records, recording, and tax bills, county offices are usually the starting layer.
Unincorporated land
If an address is outside city limits, county planning, building, environmental health, fire, or public works may handle local permits and code work.
Courts, services, and alerts
Superior court, sheriff, elections, social services, emergency alerts, and health offices often start at the county level.
Practical notes
Office, map, permit, and paperwork notes for San Francisco County
Place note · Cars and driving · Reviewed July 6, 2026
Muni is San Francisco's everyday transit layer
Muni ties together San Francisco buses, Metro trains, streetcars, cable cars, route pages, stops, fares, and alerts.
Place note · Home and property · Reviewed July 4, 2026
AlertSF is San Francisco's official emergency text alert
SF.gov explains that AlertSF sends official emergency notifications about earthquakes, fires, flooding, tsunamis, and other city conditions.
Place note · Home and property · Reviewed July 4, 2026
San Francisco tsunami zones are a waterfront and low-area check
San Francisco's tsunami page has a hazard zone map and alert information for people who live, work, visit, or travel through waterfront and low-lying areas.
Place note · Cars and driving · Reviewed July 7, 2026
Bay Area bridge tolls use FasTrak, plates, or invoices
Bay Area toll bridges use automatic toll collection, with FasTrak, License Plate Account, One-Time Payment, and invoice options depending on how the vehicle is set up.
Place note · Rules and licenses · Reviewed July 3, 2026
San Francisco business registration runs through the Treasurer
San Francisco businesses usually register with the Treasurer & Tax Collector within 30 days of starting business activity and renew each year.
Place note · Cars and driving · Reviewed July 3, 2026
San Francisco parking permits start with the exact block
San Francisco residential parking permits depend on posted permit areas, current documents, renewal timing, paid citations, and whether the vehicle is tied to the address.
Almanac notes
Stories and local context near San Francisco County
Place note · History and culture
Fort Point puts a brick fort under the Golden Gate
Fort Point gives San Francisco a close-up military history stop, with Civil War-era brickwork sitting below the Golden Gate Bridge.
Place note · History and culture
The Wave Organ turns San Francisco Bay into a small instrument
The Wave Organ is a wave-activated acoustic sculpture on a Marina District jetty, built from stone, pipes, tide, and bay movement.
Place note · History and culture
Japanese Tea Garden is a quiet Golden Gate Park story
San Francisco's Japanese Tea Garden began as an 1894 fair exhibit and grew into the oldest public Japanese garden in the United States.
Place note · History and culture
Coit Tower has a whole 1930s story at its base
Coit Tower is a Telegraph Hill landmark with city views, a Lillie Hitchcock Coit backstory, and Depression-era murals that once stirred public debate.
Place note · History and culture
The Palace of Fine Arts is San Francisco's world's-fair survivor
The Palace of Fine Arts began with the 1915 Panama-Pacific Exposition and still gives San Francisco a public reminder of that huge world's-fair moment.
Place note · History and culture
The Presidio turned a military post into a public park
San Francisco's Presidio served under three nations, became part of the National Park Service in 1994, and now mixes historic buildings, trails, beaches, and bay views.
Place note · History and culture
Japantown's Peace Plaza sits at the center of a rare district
San Francisco's Japantown is one of the few remaining Japantowns in the United States, with Peace Plaza serving as a central gathering place.
Place note · History and culture
Sutro Baths turned the edge of San Francisco into a giant swim house
The Sutro Baths ruins at Lands End are the remains of a huge oceanfront bathhouse that once mixed swimming, exhibits, restaurants, and Pacific views.