Data / Rankings / County house price index, 1990 = 100 / Counties in California

Counties in California by county house price index, 1990 = 100

Alameda County had the highest county house price index, 1990 = 100 of 54 counties in 2021, at 399.14 index. Lassen County had the lowest, at 246.37 index. The median was 307.27 index. Source: the Federal Housing Finance Agency.

Highest399.14Alameda County
Lowest246.37Lassen County
Median307.2754 counties

All counties, 2021

CSVChart (SVG)

Alameda CountyAlameda County: 399.14 index399.14San Francisco CountySan Francisco County: 384.12 index384.12Santa Clara CountySanta Clara County: 373.99 index373.99Mono CountyMono County: 369.6 index369.6Glenn CountyGlenn County: 369.17 index369.17Napa CountyNapa County: 363.91 index363.91Humboldt CountyHumboldt County: 359.68 index359.68San Mateo CountySan Mateo County: 359.55 index359.55San Diego CountySan Diego County: 352.07 index352.07Santa Cruz CountySanta Cruz County: 344.58 index344.58Yuba CountyYuba County: 343.78 index343.78Tehama CountyTehama County: 336.24 index336.24Colusa CountyColusa County: 334.17 index334.17Monterey CountyMonterey County: 333.06 index333.06Contra Costa CountyContra Costa County: 331.54 index331.54Sonoma CountySonoma County: 329.92 index329.92Marin CountyMarin County: 329.49 index329.49Orange CountyOrange County: 324.17 index324.17Los Angeles CountyLos Angeles County: 319.47 index319.47Butte CountyButte County: 318.03 index318.03Mendocino CountyMendocino County: 317.71 index317.71Del Norte CountyDel Norte County: 315.96 index315.96Yolo CountyYolo County: 312.91 index312.91Madera CountyMadera County: 311.81 index311.81Fresno CountyFresno County: 311.28 index311.28Siskiyou CountySiskiyou County: 310.34 index310.34Solano CountySolano County: 307.88 index307.88Sutter CountySutter County: 306.65 index306.65San Benito CountySan Benito County: 305.72 index305.72El Dorado CountyEl Dorado County: 304.61 index304.61San Luis Obispo CountySan Luis Obispo County: 303.4 index303.4San Bernardino CountySan Bernardino County: 302.25 index302.25Nevada CountyNevada County: 299.68 index299.68Sacramento CountySacramento County: 298.66 index298.66Santa Barbara CountySanta Barbara County: 298.27 index298.27Plumas CountyPlumas County: 296.46 index296.46Lake CountyLake County: 294.84 index294.84Inyo CountyInyo County: 294.27 index294.27Placer CountyPlacer County: 292.62 index292.62Shasta CountyShasta County: 289.65 index289.65Riverside CountyRiverside County: 288.93 index288.93Calaveras CountyCalaveras County: 288.68 index288.68Kings CountyKings County: 287.92 index287.92Merced CountyMerced County: 287.62 index287.62San Joaquin CountySan Joaquin County: 286.77 index286.77Ventura CountyVentura County: 285.5 index285.5Mariposa CountyMariposa County: 283.64 index283.64Imperial CountyImperial County: 281.16 index281.16Tulare CountyTulare County: 281.06 index281.06Stanislaus CountyStanislaus County: 277.16 index277.16Kern CountyKern County: 266.1 index266.1Tuolumne CountyTuolumne County: 264.13 index264.13Amador CountyAmador County: 260.11 index260.11Lassen CountyLassen County: 246.37 index246.37
index. Source: FHFA. Retrieved 2026-10-10.

Full ranking

RankCounties2021
index		Change on 2020
1Alameda County399.14+35.65
2San Francisco County384.12+0.35
3Santa Clara County373.99+17.31
4Mono County369.6+42.41
5Glenn County369.17+37.67
6Napa County363.91+35.72
7Humboldt County359.68+40.47
8San Mateo County359.55+3.64
9San Diego County352.07+42.62
10Santa Cruz County344.58+33.02
11Yuba County343.78+53.3
12Tehama County336.24+37.89
13Colusa County334.17+34.7
14Monterey County333.06+39.6
15Contra Costa County331.54+39.91
16Sonoma County329.92+25.61
17Marin County329.49+20.86
18Orange County324.17+29.25
19Los Angeles County319.47+33.08
20Butte County318.03+29.94
21Mendocino County317.71+34.03
22Del Norte County315.96+43.92
23Yolo County312.91+34.39
24Madera County311.81+41.6
25Fresno County311.28+40.6
26Siskiyou County310.34+39.6
27Solano County307.88+40.25
28Sutter County306.65+39.1
29San Benito County305.72+42.93
30El Dorado County304.61+40.12
31San Luis Obispo County303.4+29.46
32San Bernardino County302.25+44.73
33Nevada County299.68+37.59
34Sacramento County298.66+41.25
35Santa Barbara County298.27+32.17
36Plumas County296.46+27.73
37Lake County294.84+33.53
38Inyo County294.27+25.17
39Placer County292.62+37.44
40Shasta County289.65+35.11
41Riverside County288.93+42.57
42Calaveras County288.68+34.02
43Kings County287.92+36.31
44Merced County287.62+42.18
45San Joaquin County286.77+43.72
46Ventura County285.5+29.11
47Mariposa County283.64+36.61
48Imperial County281.16+33.23
49Tulare County281.06+36.46
50Stanislaus County277.16+38.57
51Kern County266.1+35.14
52Tuolumne County264.13+31.18
53Amador County260.11+30.92
54Lassen County246.37+17.34

Other periods

About this ranking

Annual FHFA all-transactions index of single-family house prices in US counties, with 1990 equal to 100.

Developmental nominal index, not seasonally adjusted. Uses sale prices and refinance appraisals for mortgages purchased or guaranteed by Fannie Mae or Freddie Mac. Differs from purchase-only indexes. Missing estimates and unavailable base-year values remain absent. Historical estimates can be revised.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

Federal Housing Finance Agency (FHFA). FHFA developmental all-transactions county house price index, annual, nominal, not seasonally adjusted, 1990 = 100. https://www.fhfa.gov/hpi/download/annual/hpi_at_county.xlsx. Retrieved 2026-10-10.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in California by county house price index, 1990 = 100 using official data, and cite the source.
rank_places {"indicator":"house_price_index_us_county_annual_1990","level":"province","within":"California","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=house_price_index_us_county_annual_1990&level=province&within=California&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest county house price index, 1990 = 100?

Alameda County, with 399.14 index in 2021, according to the Federal Housing Finance Agency.

Which county has the lowest county house price index, 1990 = 100?

Lassen County, with 246.37 index in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Federal Housing Finance Agency, FHFA developmental all-transactions county house price index, annual, nominal, not seasonally adjusted, 1990 = 100. Retrieved 2026-10-10.

County house price index, 1990 = 100: other rankings

Counties in California: more rankings