California

Orange County

Orange County has an estimated 3,149,507 residents as of 2025 across 34 incorporated places, a decline of 1.2% since 2020.

Population (2025)
3,149,507
Census Bureau estimate
Change since 2020
-1.2%
Resident population
Incorporated places
34
Cities, towns and CDPs
Unincorporated share
4%
Residents outside city limits

Industries in Orange County

33,616 establishments indexed

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

IndustryNAICSEstablishmentsEmployees
HVAC & Plumbing2382201,02815,367
Electrical23821094313,361
Roofing2381602522,559
Landscaping56173073814,231
Pest Control5617101691,534
Pool Service5617902051,056
Commercial Cleaning56172064014,643
Flooring2383301921,429
Glass & Glazing238150100733
Septic & Well2389101935,670
Auto Repair8111118353,821
Auto Body8111213642,861
Car Wash8111922302,837
Towing488410821,128
Trucking484110, 4841216403,493
Equipment Rental53241240426
Dental6212102,87615,947
Veterinary5419403855,177
Home Health62161044110,113
Pharmacy4461104665,947
Medical Practice6211113,94626,896
Optometry6213203782,321
Accounting541211, 5412131,39911,040
Insurance Agency5242101,92012,762
IT & MSP541513, 5415121,16110,489
Staffing561320, 56131153723,441
Engineering5413301,24921,183
Architecture5413104414,675
Law Firm5411102,86917,480
Security Services56161218911,267
Printing3231112934,788
Sign Shops3399501001,227
Machine Shops3327103544,802
Metal Fabrication332322, 3323121001,751
Plastics326199793,326
Food Manufacturing311999, 311812361,817
Millwork337110, 321918791,223
Restaurants7225112,91967,911
Bakeries3118111311,227
Liquor Stores4453103591,440
Gyms & Fitness7139405829,851
Salons & Spas812112, 812113, 8121992,22311,041
Laundromats81231091326
Dry Cleaning8123202461,429
Funeral Homes81221052633
Self Storage531130185563
Childcare6244106327,307
Pet Services8129102471,616

Cities in Orange County

34
Anaheim341KIrvine318.8KSanta Ana315.6KHuntington Beach191.5KGarden Grove170.5KFullerton138.7KOrange138.4KCosta Mesa108.9KMission Viejo90.5KWestminster89KLake Forest86.3KNewport Beach82KBuena Park81.7KTustin77.8KYorba Linda65.6KLaguna Niguel64.1KSan Clemente62.2KLa Habra60.9KFountain Valley55.5KPlacentia54.9KAliso Viejo49.8KCypress48.8KBrea47.3KRancho Santa Margarita45.8KStanton40.2KSan Juan Capistrano35.1KDana Point32.2KLaguna Hills30KSeal Beach24.1KLaguna Beach22.4KLaguna Woods16.8KLa Palma14.9KLos Alamitos11.7KVilla Park5.6K

Sources

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