The 10 Best Counties To Live In California For 2026

The best counties in California are San Mateo County and Placer County for 2026 based on Saturday Night Science.

Some of you might be asking yourself, at this very moment, is California a good place?

The answer is unequivocally yes… if you know where to locate the best counties to live in California.

Lucky for you, we’re here to help you identify the best counties to live in the Golden State based on the most recently available data from the Census. And this isn’t our first rodeo — we’ve been using Saturday Night Science to rank places for years.

The question becomes if you wanted to relocate to the best part of California, where would you go? To answer that, we looked at crime, cost of living, and demographic data for all 58 counties in the state.

San Mateo County is the county to be when it comes to living the good life in California. And you should avoid Merced County if you can — at least according to the data.

1

No. 1 best county in California

San Mateo County, CA

742,340 people
$158,855 median income · 4.8% unemployment
Median income +60% vs CA
$158,855
CA $99k
Median home value +107% vs CA
$1,606,596
CA $775k
Unemployment -27% vs CA
4.8%
CA 6.6%
2

No. 2 best county in California

Placer County, CA

419,156 people
$115,998 median income · 4.8% unemployment
Median income +17% vs CA
$115,998
CA $99k
Median home value -11% vs CA
$685,954
CA $775k
Unemployment -27% vs CA
4.8%
CA 6.6%
3

No. 3 best county in California

Marin County, CA

257,969 people
$149,091 median income · 6.1% unemployment
Median income +50% vs CA
$149,091
CA $99k
Median home value +90% vs CA
$1,469,866
CA $775k
Unemployment -8% vs CA
6.1%
CA 6.6%
4

No. 4 best county in California

Santa Clara County, CA

1,902,047 people
$164,281 median income · 4.9% unemployment
Median income +66% vs CA
$164,281
CA $99k
Median home value +117% vs CA
$1,679,213
CA $775k
Unemployment -26% vs CA
4.9%
CA 6.6%
5

No. 5 best county in California

El Dorado County, CA

192,662 people
$108,845 median income · 4.5% unemployment
Median income +10% vs CA
$108,845
CA $99k
Median home value -16% vs CA
$653,106
CA $775k
Unemployment -32% vs CA
4.5%
CA 6.6%
6

No. 6 best county in California

Alpine County, CA

1,616 people
$105,521 median income · 4.4% unemployment
Median income +6% vs CA
$105,521
CA $99k
Median home value -34% vs CA
$514,117
CA $775k
Unemployment -33% vs CA
4.4%
CA 6.6%
7

No. 7 best county in California

Alameda County, CA

1,649,473 people
$129,367 median income · 5.4% unemployment
Median income +31% vs CA
$129,367
CA $99k
Median home value +40% vs CA
$1,086,737
CA $775k
Unemployment -18% vs CA
5.4%
CA 6.6%
8

No. 8 best county in California

San Francisco County, CA

830,235 people
$140,970 median income · 6.1% unemployment
Median income +42% vs CA
$140,970
CA $99k
Median home value +75% vs CA
$1,357,007
CA $775k
Unemployment -8% vs CA
6.1%
CA 6.6%
9

No. 9 best county in California

Contra Costa County, CA

1,165,012 people
$127,229 median income · 6.5% unemployment
Median income +28% vs CA
$127,229
CA $99k
Median home value +2% vs CA
$789,908
CA $775k
Unemployment -2% vs CA
6.5%
CA 6.6%
10

No. 10 best county in California

Napa County, CA

134,869 people
$111,471 median income · 5.2% unemployment
Median income +12% vs CA
$111,471
CA $99k
Median home value +15% vs CA
$887,245
CA $775k
Unemployment -21% vs CA
5.2%
CA 6.6%

The receipts

Compare the top ten

Pick a metric. The bars rescale. The red line is California’s statewide median.

City Median income vs CA
1 San Mateo County $158,855 +60%
2 Placer County $115,998 +17%
3 Marin County $149,091 +50%
4 Santa Clara County $164,281 +66%
5 El Dorado County $108,845 +10%
6 Alpine County $105,521 +6%
7 Alameda County $129,367 +31%
8 San Francisco County $140,970 +42%
9 Contra Costa County $127,229 +28%
10 Napa County $111,471 +12%

California statewide median: $99,122

City Median home value vs CA
1 San Mateo County $1,606,596 +107%
2 Placer County $685,954 -11%
3 Marin County $1,469,866 +90%
4 Santa Clara County $1,679,213 +117%
5 El Dorado County $653,106 -16%
6 Alpine County $514,117 -34%
7 Alameda County $1,086,737 +40%
8 San Francisco County $1,357,007 +75%
9 Contra Costa County $789,908 +2%
10 Napa County $887,245 +15%

California statewide median: $774,582

City Unemployment vs CA
1 San Mateo County 4.8% -27%
2 Placer County 4.8% -27%
3 Marin County 6.1% -8%
4 Santa Clara County 4.9% -26%
5 El Dorado County 4.5% -32%
6 Alpine County 4.4% -33%
7 Alameda County 5.4% -18%
9 Contra Costa County 6.5% -2%
10 Napa County 5.2% -21%

California statewide median: 6.6%

City Population vs CA
1 San Mateo County 742,340
2 Placer County 419,156
3 Marin County 257,969
4 Santa Clara County 1,902,047
5 El Dorado County 192,662
6 Alpine County 1,616
7 Alameda County 1,649,473
8 San Francisco County 830,235
9 Contra Costa County 1,165,012
10 Napa County 134,869

On the map

Where California’s best counties are

Saturday Night Science

Methodology: How do you determine which California county is the best?

To give you the best county in California, we have to look at a handful of metrics that signal the quality of a place. To do that, we made assumptions about what’s in a “best county” and what isn’t. For reference, we are trying to make the kind of argument you’d make at a bar using facts, Saturday Night Science.

With that in mind, we went to two of the best data sources on the internet. Namely, the American Community Survey data and FBI Crime data for the most recent period.

We paid particular attention to:

  • Violent Crime Rates
  • Property Crime Rates
  • Median Home Values
  • Median Income
  • Unemployment Rates
  • Adult Education Levels
  • Health Insurance Coverage
  • Poverty Rates

We then ranked each county in California across each of the criteria from one to 58, with one being the best.

Taking the average rank across all criteria, we created a quality of life score with the county posting the lowest overall score being the “Best County To Live In California.”

The result is some of the safest, quietest, and best counties to raise a family in the Golden State.

We updated this article for 2026. This report is our eleventh time ranking the best counties to live in California.

Read on to see why San Mateo County is the best county, while Merced County is probably in contention for being the worst county in California.

The full plate

Detailed List Of The Best Counties In California

Click any column to sort. Search by county name.

RankCountyPopulationMedian IncomeMedian Home Price
1San Mateo County742,340$158,855$1,606,596
2Placer County419,156$115,998$685,954
3Marin County257,969$149,091$1,469,866
4Santa Clara County1,902,047$164,281$1,679,213
5El Dorado County192,662$108,845$653,106
6Alpine County1,616$105,521$514,117
7Alameda County1,649,473$129,367$1,086,737
8San Francisco County830,235$140,970$1,357,007
9Contra Costa County1,165,012$127,229$789,908
10Napa County134,869$111,471$887,245
11Orange County3,165,820$116,289$1,194,407
12San Benito County67,290$114,394$771,496
13Sonoma County485,040$104,674$792,143
14San Luis Obispo County281,555$97,446$906,922
15Nevada County102,481$89,882$611,865
16Santa Cruz County264,926$111,093$1,149,400
16San Diego County3,288,774$106,268$941,931
18Solano County451,918$100,401$577,138
19Amador County41,428$88,044$418,138
20Mono County13,148$99,415$755,677
21Calaveras County46,248$78,647$433,276
22Ventura County837,469$109,797$885,254
23Inyo County18,739$73,991$529,158
24Sacramento County1,594,006$92,175$530,243
25Yolo County220,564$91,752$622,227
26Tuolumne County54,498$77,404$388,488
27Mariposa County17,082$68,412$401,079
28Riverside County2,478,600$93,074$608,606
29Monterey County437,613$97,230$849,201
30Shasta County181,436$72,636$370,888
31San Joaquin County797,334$92,179$532,711
32Santa Barbara County443,701$98,161$994,384
33Plumas County19,423$66,031$362,743
34Los Angeles County9,808,667$90,112$888,345
35Stanislaus County553,990$81,468$467,166
36Del Norte County27,107$67,058$366,286
37San Bernardino County2,197,104$85,478$551,491
38Humboldt County134,541$61,160$425,013
39Sutter County98,857$79,704$438,591
40Yuba County84,507$76,373$418,797
41Sierra County2,746$63,355$328,754
42Butte County207,929$67,928$402,207
43Tehama County65,167$63,784$318,464
44Siskiyou County43,466$59,095$278,755
45Mendocino County90,244$68,092$489,567
46Fresno County1,016,725$74,201$409,962
47Colusa County21,984$75,672$370,445
48Lassen County30,356$67,403$231,145
49Madera County160,940$76,627$425,121
49Lake County68,152$60,621$305,226
51Trinity County15,860$53,002$246,520
52Kings County153,298$70,995$364,476
53Glenn County28,494$67,139$362,263
54Kern County915,075$70,210$363,091
55Modoc County8,600$59,455$191,781
56Tulare County478,693$71,300$360,206
57Imperial County180,202$57,681$378,175
57Merced County290,201$65,510$418,062

Source: U.S. Census ACS + FBI crime data via Saturday Night Science. All 58 California counties.

Summary

Summary: The Best Counties In California To Call Home For 2026

Living in California can vary from one part of the state to the next — who woulda thought?

The best counties in California are San Mateo County, Placer County, Marin County, Santa Clara County, El Dorado County, Alpine County, Alameda County, San Francisco County, Contra Costa County, and Napa County.

But now you know the outstanding parts and the parts to avoid, and that’s why you came here to learn at the end of the day.

You are welcome.

Chris Kolmar
About the author

Chris Kolmar has been in the real estate business for almost ten years now. He originally worked for Movoto Real Estate as the director of marketing before founding HomeSnacks.

He believes the key to finding the right place to live comes down to looking at the data, reading about things to do, and, most importantly, checking it out yourself before you move.

If you've been looking for a place to live in the past several years, you've probably stumbled upon his writing already.

You can find out more about him on LinkedIn or his website.

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