California

Alameda County

Alameda County has an estimated 1,636,630 residents as of 2025 across 14 incorporated places, a decline of 2.6% since 2020.

Population (2025)
1,636,630
Census Bureau estimate
Change since 2020
-2.6%
Resident population
Incorporated places
14
Cities, towns and CDPs
Unincorporated share
9%
Residents outside city limits

Industries in Alameda County

13,053 establishments indexed

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

IndustryNAICSEstablishmentsEmployees
HVAC & Plumbing2382203738,797
Electrical2382103695,212
Roofing2381601301,451
Landscaping5617303004,436
Pest Control56171043774
Pool Service56179038266
Commercial Cleaning5617202854,420
Flooring23833088900
Glass & Glazing23815050738
Septic & Well238910893,198
Auto Repair8111114222,473
Auto Body8111211971,616
Car Wash81119277711
Towing48841050361
Trucking484110, 4841216083,895
Equipment Rental53241224274
Dental6212109816,598
Veterinary5419401331,962
Home Health6216101968,014
Pharmacy4461101162,273
Medical Practice62111178910,083
Optometry621320122904
Accounting541211, 5412133301,560
Insurance Agency5242104112,119
IT & MSP541513, 5415126847,268
Staffing561320, 56131124013,262
Engineering5413304987,539
Architecture5413102171,698
Law Firm5411107104,308
Security Services561612864,574
Printing323111931,169
Sign Shops33995024330
Machine Shops3327101262,591
Metal Fabrication332322, 332312341,106
Plastics326199281,057
Food Manufacturing311999, 311812381,478
Millwork337110, 32191829241
Restaurants7225111,56423,420
Bakeries31181171738
Liquor Stores445310186718
Gyms & Fitness7139402443,895
Salons & Spas812112, 812113, 8121999064,353
Laundromats81231059393
Dry Cleaning81232086466
Funeral Homes81221032214
Self Storage53113090422
Childcare6244107105,859
Pet Services81291077774

Cities in Alameda County

14
Oakland440.8KFremont226.4KHayward157.1KBerkeley121.9KSan Leandro85.4KLivermore83.5KAlameda76.9KPleasanton74.6KDublin71.6KUnion City65.3KNewark47.9KAlbany19.2KEmeryville13.3KPiedmont10.6K

Sources

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