Sonoma County

Windsor, CA Business Index

Windsor is a town in Sonoma County with an estimated 25,864 residents as of 2025, down 1.8% since 2020. Windsor's business base is indexed below across 48 owner-operated industries.

Population (2025)
25,864
U.S. Census Bureau estimate
Change since 2020
-1.8%
2020–2025
Land area
7.4 sq mi
2023 Census Gazetteer
Density
3,478/sq mi
Residents per square mile

Population trend

Annual resident population estimates, U.S. Census Bureau Population Estimates Program.

YearPopulationYear over year
202026,344n/a
202126,273-0.27%
202226,059-0.81%
202325,913-0.56%
202425,903-0.04%
202525,864-0.15%

Windsor holds 5.3% of Sonoma County’s 486,444 residents.

Industries in Sonoma County

Windsor businesses compete in the Sonoma County market. Establishment counts, employment and payroll below are reported at county level by the U.S. Census Bureau.

HVAC & PlumbingViewElectricalViewRoofingViewLandscapingViewPest ControlViewPool ServiceViewCommercial CleaningViewFlooringViewGlass & GlazingViewSeptic & WellViewAuto RepairViewAuto BodyViewCar WashViewTowingViewTruckingViewEquipment RentalViewDentalViewVeterinaryViewHome HealthViewPharmacyViewMedical PracticeViewOptometryViewAccountingViewInsurance AgencyViewIT & MSPViewStaffingViewEngineeringViewArchitectureViewLaw FirmViewSecurity ServicesViewPrintingViewSign ShopsViewMachine ShopsViewMetal FabricationViewPlasticsViewFood ManufacturingViewMillworkViewRestaurantsViewBakeriesViewLiquor StoresViewGyms & FitnessViewSalons & SpasViewLaundromatsViewDry CleaningViewFuneral HomesViewSelf StorageViewChildcareViewPet ServicesView

Nearby cities

Other indexed places in Sonoma County and the surrounding area.

Santa Rosa179,437Petaluma59,688Rohnert Park44,811Healdsburg11,172Sonoma10,537Cloverdale8,701Sebastopol7,532Cotati7,347Calistoga4,954
Data last refreshed from source on 2026-09-08.

Sources

  1. U.S. Census Bureau, Population Estimates Program (Vintage 2025). Subcounty resident population estimates. Retrieved 2026-09-08.
  2. U.S. Census Bureau, 2023 Gazetteer Files. Land area and internal point coordinates. Retrieved 2026-09-08.
  3. U.S. Census Bureau, ANSI/FIPS Place-to-County Relationship File Retrieved 2026-09-08.