California

Contra Costa County

Contra Costa County has an estimated 1,170,070 residents as of 2025 across 19 incorporated places, a gain of 0.3% since 2020.

Population (2025)
1,170,070
Census Bureau estimate
Change since 2020
+0.3%
Resident population
Incorporated places
19
Cities, towns and CDPs
Unincorporated share
15%
Residents outside city limits

Industries in Contra Costa County

8,718 establishments indexed

Establishment and employment counts from the U.S. Census Bureau County Business Patterns program.

IndustryNAICSEstablishmentsEmployees
HVAC & Plumbing2382203243,973
Electrical2382103103,846
Roofing23816086635
Landscaping5617303553,689
Pest Control56171052401
Pool Service56179080445
Commercial Cleaning5617202772,944
Flooring23833088386
Glass & Glazing23815026182
Septic & Well238910891,998
Auto Repair8111112653,387
Auto Body81112190800
Car Wash81119244470
Towing48841038324
Trucking484110, 484121221771
Equipment Rental53241215128
Dental6212107324,713
Veterinary5419401141,811
Home Health6216101283,376
Pharmacy446110891,668
Medical Practice6211116326,181
Optometry62132068422
Accounting541211, 5412133462,814
Insurance Agency5242104032,739
IT & MSP541513, 5415122601,395
Staffing561320, 5613111595,820
Engineering5413303635,516
Architecture54131067346
Law Firm5411105192,487
Security Services561612585,167
Printing32311133384
Sign Shops3399501280
Machine Shops33271019415
Metal Fabrication332322, 3323128158
Plastics326199n/an/a
Food Manufacturing311999, 3118127192
Millwork337110, 32191814347
Restaurants72251179814,325
Bakeries31181128291
Liquor Stores44531083518
Gyms & Fitness7139401762,654
Salons & Spas812112, 812113, 8121995842,857
Laundromats81231025102
Dry Cleaning81232064350
Funeral Homes81221024167
Self Storage53113063162
Childcare6244103853,282
Pet Services81291097510

Cities in Contra Costa County

19
Concord123.3KAntioch119KRichmond114.9KSan Ramon86.2KPittsburg77.5KWalnut Creek70KBrentwood66.6KOakley47.6KDanville43.3KMartinez36.8KPleasant Hill34KSan Pablo31.7KHercules26.3KEl Cerrito26.1KLafayette25.3KOrinda19.5KPinole18.5KMoraga16.3KClayton10.8K

Sources

  1. U.S. Census Bureau, Population Estimates Program (Vintage 2025). Subcounty resident population estimates. Retrieved 2026-09-08.