RANKING · 2010 CENSUS · 57 SHOWN OF 57

Newest housing stock, California counties · 2010

California counties ranked by median year housing was built (2010 ACS). This list covers the 57 counties in California that qualify, ranked against each other statewide. The median across all 57 is 1977.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

01Placer County, CACA442,0811989+1%

02Riverside County, CACA2,544,9161987+1%

03Calaveras County, CACA46,60519830%

04Madera County, CACA167,92719830%

05San Benito County, CACA70,0821983+1%

06Kings County, CACA154,3271982+1%

07Alpine County, CACA1,04319810%

08El Dorado County, CACA192,32319810%

09Imperial County, CACA181,4111981+1%

10Nevada County, CACA101,91119810%

11Amador County, CACA41,87619800%

12Kern County, CACA927,06819800%

13Merced County, CACA297,26019800%

14San Luis Obispo County, CACA282,36719800%

15San Bernardino County, CACA2,224,09119800%

16Mariposa County, CACA16,91819790%

17San Joaquin County, CACA823,8151979+1%

18Solano County, CACA455,37619790%

19Stanislaus County, CACA557,71919790%

20Del Norte County, CACA26,41019780%

21Shasta County, CACA181,64819780%

22Sutter County, CACA98,78719780%

23Tulare County, CACA485,14619780%

24Tuolumne County, CACA53,16019780%

25Fresno County, CACA1,035,45619770%

26Mono County, CACA12,50519770%

27Plumas County, CACA18,58319770%

28Sacramento County, CACA1,618,46019770%

29San Diego County, CACA3,282,24819770%

30Tehama County, CACA64,66519770%

31Trinity County, CACA15,72019770%

32Yolo County, CACA224,41019770%

33Yuba County, CACA88,69119770%

34Butte County, CACA209,21119760%

35Lake County, CACA67,77219760%

36Sonoma County, CACA486,44419760%

37Contra Costa County, CACA1,170,07019750%

38Lassen County, CACA28,11719750%

39Ventura County, CACA830,85119750%

40Mendocino County, CACA88,12219740%

41Orange County, CACA3,149,50719740%

42Colusa County, CACA21,8361973+1%

43Monterey County, CACA433,72919730%

44Napa County, CACA132,94919730%

45Siskiyou County, CACA42,01319730%

46Inyo County, CACA18,15819720%

47Santa Clara County, CACA1,914,39119720%

48Glenn County, CACA28,14119710%

49Modoc County, CACA8,42619710%

50Santa Cruz County, CACA258,85219710%

51Santa Barbara County, CACA442,06519710%

52Sierra County, CACA3,09819700%

53Humboldt County, CACA131,64719690%

54Marin County, CACA253,69419650%

55Alameda County, CACA1,636,63019640%

56San Mateo County, CACA743,56819630%

57Los Angeles County, CACA9,694,93419610%

SHOWING 1–57 OF 57

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS