Plymouth, CA Business Index
Plymouth is a city in Amador County with an estimated 1,174 residents as of 2025, up 8.9% since 2020. Plymouth's business base is indexed below across 48 owner-operated industries.
- Population (2025)
- 1,174
- U.S. Census Bureau estimate
- Change since 2020
- +8.9%
- 2020–2025
- Land area
- 2.7 sq mi
- 2023 Census Gazetteer
- Density
- 443/sq mi
- Residents per square mile
Population trend
Annual resident population estimates, U.S. Census Bureau Population Estimates Program.
| Year | Population | Year over year |
|---|---|---|
| 2020 | 1,078 | n/a |
| 2021 | 1,093 | +1.39% |
| 2022 | 1,102 | +0.82% |
| 2023 | 1,124 | +2.00% |
| 2024 | 1,145 | +1.87% |
| 2025 | 1,174 | +2.53% |
Plymouth holds 2.8% of Amador County’s 41,876 residents.
Industries in Amador County
Plymouth businesses compete in the Amador County market. Establishment counts, employment and payroll below are reported at county level by the U.S. Census Bureau.
HVAC & PlumbingViewElectricalViewRoofingViewLandscapingViewPest ControlView
Pool ServicePending
Commercial CleaningViewFlooringPending
Glass & GlazingPending
Septic & WellViewAuto RepairViewAuto BodyViewCar WashPending
TowingPending
TruckingPending
Equipment RentalPending
DentalViewVeterinaryViewHome HealthViewPharmacyViewMedical PracticeViewOptometryPending
AccountingViewInsurance AgencyViewIT & MSPViewStaffingPending
EngineeringViewArchitecturePending
Law FirmViewSecurity ServicesPending
PrintingPending
Sign ShopsPending
Machine ShopsPending
Metal FabricationPending
PlasticsPending
Food ManufacturingPending
MillworkPending
RestaurantsViewBakeriesPending
Liquor StoresViewGyms & FitnessViewSalons & SpasViewLaundromatsPending
Dry CleaningPending
Funeral HomesPending
Self StoragePending
ChildcareViewPet ServicesPending
Nearby cities
Other indexed places in Amador County and the surrounding area.
Data last refreshed from source on 2026-09-08.
Sources
- U.S. Census Bureau, Population Estimates Program (Vintage 2025). Subcounty resident population estimates. Retrieved 2026-09-08.
- U.S. Census Bureau, 2023 Gazetteer Files. Land area and internal point coordinates. Retrieved 2026-09-08.
- U.S. Census Bureau, ANSI/FIPS Place-to-County Relationship File Retrieved 2026-09-08.