Southwest California Cities

City
Rank
County
2026 Pop. ↓
San Diego1San Diego County1,410,522
Anaheim2Orange County340,018
Irvine3Orange County321,138
Santa Ana4Orange County316,476
Chula Vista5San Diego County275,767
Oxnard6Ventura County199,197
Huntington Beach7Orange County189,985
Garden Grove8Orange County170,221
Oceanside9San Diego County169,666
Escondido10San Diego County145,251
Orange11Orange County138,080
Fullerton12Orange County137,712
Simi Valley13Ventura County124,611
Thousand Oaks14Ventura County121,431
Carlsbad15San Diego County111,835
Santa Maria16Santa Barbara County111,689
San Buenaventura (Ventura)17Ventura County109,698
Costa Mesa18Orange County108,122
El Cajon19San Diego County100,948
Vista20San Diego County98,294
San Marcos21San Diego County95,057
Mission Viejo22Orange County89,897
Westminster23Orange County88,580
Lake Forest24Orange County86,498
Santa Barbara25Santa Barbara County85,946
Newport Beach26Orange County81,348
Buena Park27Orange County81,332
Tustin28Orange County77,449
Camarillo29Ventura County68,334
Yorba Linda30Orange County65,121
Laguna Niguel31Orange County63,960
San Clemente32Orange County61,848
Encinitas33San Diego County60,487
La Habra34Orange County60,462
La Mesa35San Diego County59,754
Santee36San Diego County57,953
National City37San Diego County56,971
Fountain Valley38Orange County55,205
Placentia39Orange County55,203
San Luis Obispo40San Luis Obispo County51,298
Aliso Viejo41Orange County49,393
Poway42San Diego County49,254
Cypress43Orange County48,530
Brea44Orange County47,363
Rancho Santa Margarita45Orange County45,357
Lompoc46Santa Barbara County43,098
Stanton47Orange County40,725
La Presa48San Diego County37,246
Eastern Goleta Valley49Santa Barbara County36,198
Temescal Valley50Orange County35,151
San Juan Capistrano51Orange County35,131
Moorpark52Ventura County34,818
Spring Valley53San Diego County33,140
Fallbrook54San Diego County32,913
Goleta55Santa Barbara County32,338
Dana Point56Orange County32,084
Santa Paula57Ventura County32,017
Orcutt58Santa Barbara County31,833
El Paso de Robles (Paso Robles)59San Luis Obispo County31,634
Laguna Hills60Orange County29,760
Atascadero61San Luis Obispo County29,437
Lemon Grove62San Diego County27,957
North Tustin63Orange County26,297
Imperial Beach64San Diego County25,048
Seal Beach65Orange County23,869
Ladera Ranch66Orange County23,754
Ramona67San Diego County23,414
Rancho San Diego68San Diego County22,508
Winter Gardens69San Diego County22,320
Laguna Beach70Orange County22,260
Lakeside71San Diego County22,051
Port Hueneme72Ventura County20,796
Coronado73San Diego County20,573
Casa de Oro-Mount Helix74San Diego County19,856
Arroyo Grande75San Luis Obispo County18,070
Nipomo76San Luis Obispo County17,393
Fillmore77Ventura County17,078
Bostonia78San Diego County16,814
Laguna Woods79Orange County16,689
Camp Pendleton South80San Diego County16,025
Alpine81San Diego County15,755
Coto de Caza82Orange County15,478
Los Osos83San Luis Obispo County15,226
La Palma84Orange County14,775
University of California-Santa Barbara85Santa Barbara County14,319
Rancho Mission Viejo86Orange County13,975
Oak Park87Ventura County13,620
Bonita88San Diego County13,520
Carpinteria89Santa Barbara County12,629
Solana Beach90San Diego County12,556
Grover Beach91San Luis Obispo County12,418
Rossmoor92Orange County12,276
Camp Pendleton Mainside93San Diego County12,063
Los Alamitos94Orange County11,706
Lakeland Village95Orange County11,598
Isla Vista96Santa Barbara County11,553
Morro Bay97San Luis Obispo County10,574
Valley Center98San Diego County10,540
San Diego Country Estates99San Diego County10,150
California Polytechnic State University100San Luis Obispo County9,266
Guadalupe101Santa Barbara County8,970
Templeton102San Luis Obispo County8,824
Montecito103Santa Barbara County8,790
Midway City104Orange County8,004
Pismo Beach105San Luis Obispo County7,886
Ojai106Ventura County7,447
Mira Monte107Ventura County7,404
Oceano108San Luis Obispo County7,055
Vandenberg Village109Santa Barbara County6,861
Jamul110San Diego County6,722
Oak View111Ventura County6,427
El Rio112Ventura County6,146
Eucalyptus Hills113San Diego County6,129
Cambria114San Luis Obispo County6,039
Las Flores115Orange County6,015
Solvang116Santa Barbara County5,909
Villa Park117Orange County5,606
Buellton118Santa Barbara County5,130
Lake San Marcos119San Diego County5,125
Santa Ynez120Santa Barbara County4,796
Bonsall121San Diego County4,383
Harbison Canyon122San Diego County4,338
San Miguel123San Luis Obispo County4,129
Granite Hills124San Diego County4,059
Meiners Oaks125Ventura County4,044
Hidden Meadows126San Diego County3,995
Del Mar127San Diego County3,842
Vandenberg AFB128Santa Barbara County3,769
Crest129San Diego County3,136
Callender130San Luis Obispo County3,111
San Miguel131San Luis Obispo County3,099
Channel Islands Beach132Ventura County2,897
Campo133San Diego County2,752
Fairbanks Ranch134San Diego County2,712
Borrego Springs135San Diego County2,631
Santa Rosa Valley136Ventura County2,581
Harmony Grove137San Diego County2,516
Cayucos138San Luis Obispo County2,500
Casa Conejo139Ventura County2,499
Rancho Santa Fe140San Diego County2,449
Woodlands141San Luis Obispo County2,335
Piru142Ventura County2,334
Mission Canyon143Santa Barbara County2,276
Toro Canyon144Santa Barbara County1,789
Descanso145San Diego County1,727
Trabuco Canyon146Orange County1,696
Pine Valley147San Diego County1,677
Saticoy148Ventura County1,563
Somis149Ventura County1,551
Los Ranchos150San Luis Obispo County1,531
Julian151San Diego County1,488
Avila Beach152San Luis Obispo County1,305
Warm Springs153Orange County1,231
Summerland154Santa Barbara County1,202
Blacklake155San Luis Obispo County1,166
Pala156San Diego County1,137
Silverado157Orange County1,095
Shandon158San Luis Obispo County984
Santa Susana159Ventura County971
Jacumba160San Diego County954
Lakeside161San Diego County903
Los Olivos162Santa Barbara County894
Ballard163Santa Barbara County872
Modjeska164Orange County857
Spring Valley165San Diego County759
Elfin Forest166San Diego County697
Los Alamos167Santa Barbara County654
New Cuyama168Santa Barbara County548
Boulevard169San Diego County545
Santa Margarita170San Luis Obispo County528
Del Dios171San Diego County439
Edna172San Luis Obispo County421
Potrero173San Diego County369
San Simeon174San Luis Obispo County264
Garden Farms175San Luis Obispo County216
Sisquoc176San Luis Obispo County183
Mount Laguna177San Diego County151
Casmalia178Santa Barbara County78
Williams Canyon179Orange County66
Los Berros180San Luis Obispo County64
Whitley Gardens181San Luis Obispo County59
Garey182San Luis Obispo County47
Cuyama183San Luis Obispo County33

About Southwest California

San Diego County, Orange County, Ventura County, Santa Barbara County, and San Luis Obispo County are the counties generally considered part of Southwest California.

Sources

  1. US Census: 2025 Gazetteer Files
  2. City and Town Population Totals: 2020-2024