Windsor, CA · Updated Oct 2026

What a Windsor house pays

Property tax, water, trash and energy from public rates. Look up your address to make it yours, and see how to pay less.

Sent only to free public map services to find who serves it. Not stored unless you save your house.

Example · a Windsor house

$16,493a year · $1,374 a month

Starts at the typical market value, $801,100; your assessed value is often lower. Typical use.

Property tax$8,922
1.123% of $801,100, less $7,000 homeowners' exemption
Flat charges on the tax bill$516
South County Fire special tax $68 · South County Fire 2006 tax (varies by parcel) $169 · Windsor LLAD1 Zone 1 parks $50 · Windsor LLAD1 Zone 2 lighting $21 · Windsor LLAD1 Zone 3 landscape $34 · Marin/Sonoma mosquito & vector control $12 · North Sonoma County Hospital District $150 · SF Bay Restoration Authority parcel tax (Measure AA) $12
Electricity and gas$3,421
500 kWh a month $2,442 · 31.72 therms $979
Water and sewer$1,668
6,000 gallons a month on Town of Windsor: water $41, sewer $98 a month
Trash$474
32-gal garbage, $40 a month
Home insurance$1,492
Typical premium $1,492

A Windsor house at the typical market value ($801,100) pays about $16,500 a year: $9,440 property tax and charges, $1,670 water and sewer, $470 trash, $3,420 electricity and gas, $1,490 home insurance. Estimated from public rates, not anyone's actual bill.

Rates checked Oct 22, 2026. Insurance: what you enter, or a typical premium until you do. Sources are listed at the bottom.

Ways to pay less

Nothing here applies to every house automatically. These are worth checking:

Switch to the 20-gal garbage cartUp to $112 a year
Your cart costs $40 a month; the smallest costs $30. Worth it if you rarely fill it.
How: Contact Sonoma County Resource Recovery at (707) 795-7470 (Monday-Friday 8 am - 5 pm) and ask for a service change, or choose Service Change in its customer service form.
Seniors 62+: 10% off garbage (20- or 32-gallon cart)10% off garbage
Sonoma County Resource Recovery gives a 10 percent monthly discount to customers age 62 or older. The applicant must be the primary account holder and a Windsor resident, subscribe to the 20- or 32-gallon landfill cart, and submit proof of age.
How: Apply on SCRR's Windsor senior discount page or mail proof of age to Sonoma County Resource Recovery, PO Box 1471, Windsor, CA 95492.
Income-qualified households: PG&E CARE or FERA30–35% off electricity
CARE takes 30–35% off electricity and drops the base services charge to $6 a month; FERA takes 18% off for incomes slightly above the CARE limit.
How: Apply with PG&E; application forms are also available through community agencies.
Two free curbside clean-ups a yearFree
Twice per year, at no charge, residents of Windsor can schedule the collection of unwanted materials such as large/bulky items; furniture and mattresses and box springs are among the permitted items. Pickups should be no less than 30 days apart.
How: Call customer service at (707) 795-7470 to schedule your curbside clean-up.
Water efficient landscape rebate: $1 per square foot$1 per sq ft, up to $1,500
The Town offers $1.00 per square foot up to $1,500 for removing turf, and up to $500 of the total cost of irrigation equipment upgrades. Sites with recycled water do not qualify, and a pre-approval inspection is required before work starts.
How: Email water.smart1@scwa.ca.gov or call (707) 547-1909 for a pre-approval appointment.
Sewer is capped at your winter average water useSewer is capped at the winter average
Wastewater Winter Averaging calculates wastewater charges based on the average amount of water used at your residence during the Winter months from December to March. The winter average (sewer cap) is the maximum amount billed, and it becomes effective on July 1st of each year.
How: See the Town of Windsor Winter Average (Sewer Cap) page for details.

Adjust to match your bills

What you knowTrash cartThe rate is set by the size of the gray garbage cart; the bundled rate includes the recycling and organics carts.

Value before exemptionsEnter the net taxable value from your tax bill: under Prop 13 it is often well below what the house would sell for. The fire 2006 charge differs by parcel ($97 to $210 on bills we sampled), and some bills carry other charges such as an energy-efficiency assessment or CFD.

I live here and have the Homeowners' exemption

Home insurance, a yearFrom your policy. We start at $1,492, California statewide average, NAIC data for 2022 as published by the Insurance Information Institute (California figures from the California Department of Insurance).

Earthquake insurance, a yearSeparate from home insurance. Most owners don't have it.

Your use

Water, thousands of gallons a month

On your water bill. A typical house uses 5,000–8,000 gallons.

Electricity, kWh a month

On your PG&E delivery with Sonoma Clean Power CleanStart generation bill. An electric car adds about 300 kWh.

Gas, therms a month (yearly average)

Money dates

Nov 1in 9 daysFirst installment of the annual property tax bill is due November 1 and becomes delinquent at 5:00 p.m. on December 10.
Nov 30, 2026in 38 daysLast day of Sonoma County's 2026 assessment appeal filing period (opened July 2).
Feb 1in 101 daysSecond installment is due and becomes delinquent at 5:00 p.m. on April 10.
Feb 15in 115 daysLast day for a first-time homeowners' exemption claim to get the full exemption for that year.

Who serves this house

Water: Town of Windsor; Town of Windsor water rates for July 2026 (five-year schedule W-3): a $15.48 monthly service charge for a meter up to 3/4 inch, plus for single-family homes $0.004210 per gallon up to 7,000 gallons a month, $0.006780 per gallon for 7,001-17,000 and $0.008540 per gallon above 17,000
Property tax: 1.12% of value; 2026-27 tax year, Sonoma County (Windsor tax rate area 009-000)
Garbage: Sonoma County Resource Recovery; The rate sheet says the bundled rate includes one cart for garbage, one split cart for recycling and one cart for organics, all collected weekly.
Sewer: Town of Windsor; The Town's winter average (sewer cap) is the most a residence can be billed for wastewater; if monthly water use is lower, the bill follows actual use.
Electricity: Sonoma Clean Power generation, PG&E delivery; Sonoma Clean Power is the default electricity generation provider in Sonoma County; PG&E delivers the power and sends one monthly bill with both companies' charges.
Gas: PG&E; Windsor is in PG&E's gas service territory.

Pay or manage your bills

Your water

Source: The Town's system has five large wells adjacent to the Russian River and a direct connection to the Sonoma County Water Agency aqueduct.
Hardness: In 2023 and 2024 hardness measured 126 mg/L on average (range 104 to 154).
Lead: The Town completed an inventory of water service lines in 2024 and found no lead in the system.

Other CA cities

How these numbers are made

Garbage: Sonoma County Resource Recovery's Windsor residential curbside rates for April 1, 2026 to March 31, 2027 (monthly): $30.17 for a 20-gallon garbage cart, $39.50 for 32 gallons, $60.61 for 64 gallons and $91.63 for 96 gallons, with the recycling and organics carts bundled. The page starts at the 32-gallon cart. SCRR bills quarterly, shown here as monthly. The Town's utility bill covers water and sewer.
Water and sewer: Town of Windsor rates for July 2026 from the 2025 rate study's five-year schedules, billed monthly. Water: $15.48 service charge for a meter up to 3/4 inch plus $4.21 / $6.78 / $8.54 per thousand gallons (tiers to 7,000 and 17,000 gallons). The page starts at 8.15 CCF, the rate study's average single-family use (581,000 thousand gallons a year over 7,944 accounts). Sewer: $17.90 plus $26.22 per thousand gallons, charged on use up to 3.05 thousand gallons, the rate study's average winter flow per single-family account (305,000 thousand gallons over 8,325 accounts) because we do not know your winter average. The July 2026 step is part of the Town's five-year schedule that the Town says runs through July 2029; we found no separate stormwater fee on the utility bill.
Property tax: Sonoma County 2026-27 rates for tax rate area 009-000, the Windsor area with the most homeowners' exemptions in the county's 2026 code area recap (17,570,000 in exemptions, about 2,510 homes at $7,000 each, vs. about 720 in 009-004): 1% Prop 13, 0.007% Warm Springs Dam/Russian River Project, 0.0475% and 0.042% Windsor Unified bonds, 0.009% and 0.018% junior college bonds, 1.1235% in all, less the $7,000 homeowners' exemption. Flat yearly charges are from a 2026-27 secured bill in that area; the South County Fire 2006 charge was $153.74 to $210.16 on four sampled bills in 009-000 (we use $169.06, the most common) and varies by parcel. Total: $516.08. Not included: some neighborhoods carry other charges such as energy-efficiency (SCEIP) assessments.
The starting home value is the Census ACS 2020-2024 median market value of owner-occupied homes ($801,100); under Prop 13 an owner who bought years ago has a lower assessed value and pays less. Enter the net taxable value from your tax bill.
Electricity and gas: the same PG&E schedule E-1, Sonoma Clean Power CleanStart and PG&E G-1 build-up as neighboring Sonoma County cities, assuming territory X baselines (Windsor lies inland, east of the shoreline portion that is territory T). See the notes under each. Typical use is PG&E's EIA 2024 residential average (about 500 kWh a month) and California's 2024 residential gas average (about 32 therms a month). Insurance is the 2022 California average homeowners premium (NAIC via the Insurance Information Institute) until you enter your own.
Nothing here is legal, tax or insurance advice.

Sources

Common questions about Windsor house costs

What is the property tax rate in Windsor?

About 1.12% of the value before exemptions a year (2026-27 tax year, Sonoma County (Windsor tax rate area 009-000)), plus flat charges on the same bill (South County Fire special tax $68, South County Fire 2006 tax (varies by parcel) $169, Windsor LLAD1 Zone 1 parks $50, Windsor LLAD1 Zone 2 lighting $21).

How much is property tax on a $500,000 house in Windsor?

About $6,055 a year on $500,000 of the value before exemptions with the homeowners' exemption, including $516 of flat charges.

How much is the water bill in Windsor?

About $139 a month for water and sewer at typical use (6,000 gallons a month) on Town of Windsor.

How much does trash pickup cost in Windsor?

$30 to $92 a month, depending on the trash cart size (20-gal garbage, 32-gal garbage, 64-gal garbage, 96-gal garbage).

When is property tax due in Windsor?

Nov 1: First installment of the annual property tax bill is due November 1 and becomes delinquent at 5:00 p.m. on December 10. Feb 1: Second installment is due and becomes delinquent at 5:00 p.m. on April 10.

Can seniors lower their property tax or bills in Windsor?

Yes. Seniors 62+: 10% off garbage (20- or 32-gallon cart): Sonoma County Resource Recovery gives a 10 percent monthly discount to customers age 62 or older. The applicant must be the primary account holder and a Windsor resident, subscribe to the 20- or 32-gallon landfill cart, and submit proof of age.

Where can I get help paying utility bills in Windsor?

Income-qualified households: PG&E CARE or FERA: CARE takes 30–35% off electricity and drops the base services charge to $6 a month; FERA takes 18% off for incomes slightly above the CARE limit. Apply with PG&E; application forms are also available through community agencies.

How much does a house in Windsor cost to run each year?

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