Placer County

Rocklin, CA Business Index

Rocklin is a city in Placer County with an estimated 76,821 residents as of 2025, up 7.0% since 2020. Rocklin's business base is indexed below across 48 owner-operated industries.

Population (2025)
76,821
U.S. Census Bureau estimate
Change since 2020
+7.0%
2020–2025
Land area
19.8 sq mi
2023 Census Gazetteer
Density
3,878/sq mi
Residents per square mile

Population trend

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

YearPopulationYear over year
202071,783n/a
202172,797+1.41%
202273,245+0.62%
202373,943+0.95%
202475,434+2.02%
202576,821+1.84%

Rocklin holds 17.4% of Placer County’s 442,081 residents.

Industries in Placer County

Rocklin businesses compete in the Placer 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 FabricationViewPlasticsView
Food ManufacturingPending
MillworkViewRestaurantsViewBakeriesViewLiquor StoresViewGyms & FitnessViewSalons & SpasViewLaundromatsViewDry CleaningViewFuneral HomesViewSelf StorageViewChildcareViewPet ServicesView

Nearby cities

Other indexed places in Placer County and the surrounding area.

Roseville167,302Lincoln57,367Auburn13,847Loomis7,004Colfax2,043Citrus Heights86,348Folsom91,983Rancho Cordova87,554Wheatland4,267
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.