RANKING · 2024 ACS · 58 SHOWN OF 58

Newest housing stock, California counties

California counties ranked by median year housing was built (2024 ACS). This list covers the 58 counties in California that qualify, ranked against each other statewide. The median across all 58 is 1981. Biggest climber in the top 100 since 2020: Fresno County, CA, up 11 places to #20.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

01Placer County, CACA442,0811994+1%

02▲1Riverside County, CACA2,544,9161990+1%

03▲3San Benito County, CACA70,0821989+1%

04▼2Imperial County, CACA181,4111988+1%

05Madera County, CACA167,9271988+1%

06▼2Calaveras County, CACA46,60519860%

07Kings County, CACA154,3271986+1%

08Mariposa County, CACA16,9181986+1%

09▲10Merced County, CACA297,2601986+1%

10▲7Yuba County, CACA88,6911986+1%

11▲1Amador County, CACA41,8761984+1%

12▼2Kern County, CACA927,0681984+1%

13San Joaquin County, CACA823,8151984+1%

14▼5El Dorado County, CACA192,32319830%

15▼4Nevada County, CACA101,91119830%

16▼2San Luis Obispo County, CACA282,36719830%

17▼2San Bernardino County, CACA2,224,09119830%

18▲4Tulare County, CACA485,1461983+1%

19▼3Yolo County, CACA224,4101983+1%

20▲11Fresno County, CACA1,035,4561982+1%

21▼1Shasta County, CACA181,64819820%

22▼1Solano County, CACA455,37619820%

23▲5Sutter County, CACA98,7871982+1%

24▼6Alpine County, CACA1,04319810%

25▲5Butte County, CACA209,2111981+1%

26▼3Del Norte County, CACA26,41019810%

27▼1Plumas County, CACA18,58319810%

28▲4Sacramento County, CACA1,618,4601981+1%

29▼2Stanislaus County, CACA557,71919810%

30▼1Tehama County, CACA64,6651981+1%

31▼7Lake County, CACA67,77219800%

32▼7Mono County, CACA12,50519800%

33San Diego County, CACA3,282,24819800%

34Tuolumne County, CACA53,16019800%

35▲1Sonoma County, CACA486,44419790%

36▲3Colusa County, CACA21,8361978+1%

37▲1Contra Costa County, CACA1,170,07019780%

38▲6Ventura County, CACA830,85119780%

39▲1Glenn County, CACA28,1411977+1%

40▼5Lassen County, CACA28,11719770%

41Mendocino County, CACA88,12219770%

42Orange County, CACA3,149,50719770%

43▼6Trinity County, CACA15,72019770%

44▲2Modoc County, CACA8,4261976+1%

45▲2Monterey County, CACA433,72919760%

46▼1Napa County, CACA132,9491976+1%

47▼4Siskiyou County, CACA42,01319760%

48▲5Inyo County, CACA18,15819750%

49▼1Santa Clara County, CACA1,914,39119750%

50Santa Cruz County, CACA258,85219740%

51Santa Barbara County, CACA442,06519740%

52Humboldt County, CACA131,6471973+1%

53▼4Sierra County, CACA3,09819710%

54Alameda County, CACA1,636,63019690%

55Marin County, CACA253,69419670%

56San Mateo County, CACA743,56819660%

57Los Angeles County, CACA9,694,93419650%

58San Francisco County, CACA826,07919460%

SHOWING 1–58 OF 58

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES