City
Cotati
Cotati is an incorporated city in Sonoma County with an estimated 2025 population of 7,347. It handles many rules and services inside its limits. The county still handles property records, taxes, elections, public health, and many household programs.
Starting point
Confirm the address is inside local limits first.
If the address is inside Cotati, city offices may handle local permits, code, and services. If it is outside local limits, county planning or building may handle the work instead.
What changes the answer: A mailing city is not always the same as city government jurisdiction.
Place story
Cotati's six-sided plaza makes the whole town easier to remember
Cotati's downtown plaza grew from Page's Station and the old Rancho Cotate into a rare six-sided town plan now listed as a California Historical Landmark.
Read the local noteCity offices
Start with the task in front of you.
Cotati is incorporated. Start with the city for work inside its limits, while Sonoma County still handles property records, taxes, courts, elections, many benefits, and county alerts. Sonoma County handles local public health.
- Property Open the property-tax guide
Assessed value, exemptions, tax bills, and appeals
Sonoma County assessor handles value and exemptions. The clerk of the board handles a formal value appeal. The tax collector handles the bill, payment, and penalties.
- Records Open the records guide
Deeds, birth and death records, marriage records, and name changes
Sonoma County recorder is the usual office for deeds and many public records. Vital-record access depends on the record and year. A legal name change or divorce decree can involve Superior Court.
- Property work Open local-office help
Building permits, ADUs, zoning, code, water, and septic
Start with the city planning or building office for an address inside Cotati. Start with the county for an address outside local limits.
- Housing Open rent and housing help
Rent rules, repairs, notices, and eviction papers
Start with a local rent, housing, or code office if one serves the address. Court papers go to the Superior Court self-help path, and the deadline on the papers keeps running.
- Household help Open the benefits guide
CalFresh, Medi-Cal, CalWORKs, General Assistance, and IHSS
Sonoma County social-services agency is the main local office. Coverage, food, cash aid, and in-home support remain separate programs with separate notices.
- Public health Open health and benefits help
Vaccines, disease reporting, health records, and local health programs
Sonoma County public health is the local health jurisdiction. Health coverage and benefits still use separate programs and offices.
- Business Open the business guide
Business setup, seller's permits, local licenses, and regulated work
State filings and tax accounts do not replace Cotati zoning, licensing, building, fire, or health approvals for the address.
- Neighborhood services Open local-office help
Potholes, streetlights, graffiti, trash, and service requests
For a city-maintained street or service inside Cotati, start with the local request system. County roads, Caltrans routes, utilities, private property, and separate service providers use different reporting systems.
- School and care Open the school and care guide
School enrollment, student records, and child-care checks
The school district handles assignment and records. County offices can help with some family services, while the state licenses child-care facilities.
- Parking Open parking help
Residential, guest, overnight, and local parking permits
A local parking permit is separate from a citation, moving ticket, and toll notice. Match the permit to the address, vehicle, district, or parking facility.
- Tickets Open ticket help
Traffic court, parking citations, and toll notices
Sonoma County Superior Court handles traffic court matters. A city or issuing agency handles parking. The toll operator handles toll notices.
- Safety Open emergency checks
Emergency alerts, evacuations, smoke, roads, and power
Use the county or city alert system for local warnings. Follow the local emergency office for evacuation wording, then check the matching state fire, smoke, road, or utility update.
Official city links
Start local when the address is inside Cotati.
The official website is always listed. A direct service link appears only after an official public page has been checked; an unlisted service has not been guessed.
County offices
County offices still handle countywide work.
Cotati does not replace the county for records, property taxes, courts, elections, benefits, public health, or county alerts. The official links stay together below.
Sonoma County
City, county, and district responsibilities
The city line changes some rules, but not every public office.
The mailing address can say Cotati even when the property sits outside local limits. Check the city line before relying on a local rule or permit page.
City limits choose the local permit office
Inside Cotati, the city usually handles permits, zoning, parking, business licenses, and local code. Outside the city line, start with county planning or building.
The county still handles county work
Sonoma County handles property value and tax bills. It also handles deeds, elections, health, and many aid programs. Living inside Cotati does not move those jobs to the city.
A provider can have its own boundary
Water, sewer, fire, schools, transit, trash, and power may belong to a special district or other provider. Use the address, parcel, or service bill to find the right agency.
Practical notes
Office, map, permit, and paperwork notes for Cotati
Countywide answer · Home and property · Reviewed July 14, 2026
Sonoma County evacuation zones work by address
Sonoma County's zone lookup and live incident map help residents match an address to an evacuation warning, order, shelter-in-place notice, or road closure.
County practical note · Home and property · Reviewed July 28, 2026
Santa Rosa water billing and field problems use different numbers
Water Billing opens and closes city water or sewer accounts with one business day's notice. Leaks, sewer maintenance, and after-hours emergencies use different service lines.
County practical note · Cars and driving · Reviewed July 6, 2026
Santa Rosa CityBus is built around routes that meet and transfer
Santa Rosa CityBus has fixed routes inside city limits, a downtown Transit Mall, route maps, fares, passes, and paratransit links that make local bus trips easier to plan.
County practical note · Home and property · Reviewed July 5, 2026
Petaluma building permits depend on the project lane
Petaluma's permit path splits building, zoning, right-of-way, fire, and business questions, so the project type matters as much as the address.
County practical note · Home and property · Reviewed July 4, 2026
Rohnert Park's tracker lets you check existing requests
Rohnert Park's Citizen Request Tracker lets residents report routine concerns and check existing requests later, which is useful for follow-up.
County practical note · Home and property · Reviewed July 4, 2026
Petaluma Public Works issues can go through EngagePetaluma
Petaluma routes many Public Works and utilities problems through its report-an-issue path and EngagePetaluma app, with phone numbers for water and Public Works questions.
Stories & Notes
Stories and local context in Sonoma County
Countywide story · Outdoors
Sonoma Coast is a string of beach stops
Sonoma Coast State Park runs from Bodega Bay toward the Russian River, with beaches, coves, headlands, tide pools, camping, and whale watching.
County place story · History and culture
Santa Rosa's old post office became a museum by moving
The Museum of Sonoma County lives in Santa Rosa's historic 1910 post office, a building saved from demolition and moved to a new downtown spot.
County place story · History and culture
Santa Rosa is home to a statewide California Indian cultural center
The California Indian Museum and Cultural Center in Santa Rosa shares California Indian history, culture, leadership, and living knowledge from a Native-led home base.
County place story · History and culture
Santa Rosa is where Peanuts found a long home
Charles M. Schulz lived in Santa Rosa for decades, and the museum there keeps Peanuts tied to the city where much of his later life and work took shape.
County place story · History and culture
The Geysers turn mountain steam into power
The Geysers near the Lake and Sonoma county line turned a long-known thermal area into one of California's most important geothermal power stories.
County place story · History and culture
DeTurk Round Barn gives Santa Rosa's West End a rare old shape
DeTurk Round Barn sits in Santa Rosa's West End, tying the neighborhood to winery work, old industries, rail life, preservation, and a rare round-barn landmark.
County place story · History and culture
Fort Ross adds Russian and Kashaya history to the Sonoma Coast
Fort Ross State Historic Park near Jenner connects the Sonoma Coast to Russian settlement, Alaska trade routes, Kashaya Pomo homeland, ranching, archaeology, and ocean-edge history.
County place story · History and culture
Luther Burbank's gardens keep Santa Rosa's plant story alive
Luther Burbank Home and Gardens is a downtown Santa Rosa historic site tied to the horticulturist's home, gardens, plant-breeding work, and long local legacy.
- 2025 population
- 7,347
- Land area
- 1.874 sq mi
- Water area
- 0.003 sq mi