Sourced county profiles
Rankings
Best California Counties for Solar Potential
A sourced county-centroid solar resource ranking from NASA POWER climatology.
Ranking boundary
Rankings Are Discovery Leads
A high ranking means a county is worth researching first. It is not legal advice, a recommendation to buy land, or proof that any parcel will qualify for a specific use.
Solar potential uses county-centroid irradiance as a broad planning proxy.
Source confidence
Ranking Confidence Strip
A quick trust check for the top-ranked counties: verified profiles, major source coverage, citation depth, and the number of source inputs behind this ranking.
Major sourced layers present
Top 10 county citation URLs
Source groups used by this ranking
Official California county-rule source anchors added for Alpine County; direct office confirmation remains pending before verified status.
#2Amador CountyPartially sourced10Official California county-rule source anchors added for Amador County; direct office confirmation remains pending before verified status.
#3Calaveras CountyPartially sourced10Official California county-rule source anchors added for Calaveras County; direct office confirmation remains pending before verified status.
#4El Dorado CountyPartially sourced10Official California county-rule source anchors added for El Dorado County; direct office confirmation remains pending before verified status.
#5Fresno CountyPartially sourced10Official California county-rule source anchors added for Fresno County; direct office confirmation remains pending before verified status.
#6Imperial CountyPartially sourced10Official California county-rule source anchors added for Imperial County; direct office confirmation remains pending before verified status.
#7Inyo CountyPartially sourced10Official California county-rule source anchors added for Inyo County; direct office confirmation remains pending before verified status.
#8Kern CountyPartially sourced10Official California county-rule source anchors added for Kern County; direct office confirmation remains pending before verified status.
#9Kings CountyPartially sourced10Official California county-rule source anchors added for Kings County; direct office confirmation remains pending before verified status.
#10Madera CountyPartially sourced10Official California county-rule source anchors added for Madera County; direct office confirmation remains pending before verified status.
#11Mariposa CountyPartially sourced10Official California county-rule source anchors added for Mariposa County; direct office confirmation remains pending before verified status.
#12Merced CountyPartially sourced10Official California county-rule source anchors added for Merced County; direct office confirmation remains pending before verified status.
#13Mono CountyPartially sourced10Official California county-rule source anchors added for Mono County; direct office confirmation remains pending before verified status.
#14Monterey CountyPartially sourced10Official California county-rule source anchors added for Monterey County; direct office confirmation remains pending before verified status.
#15Orange CountyPartially sourced10Official California county-rule source anchors added for Orange County; direct office confirmation remains pending before verified status.
#16Riverside CountyPartially sourced10Official California county-rule source anchors added for Riverside County; direct office confirmation remains pending before verified status.
#17Sacramento CountyPartially sourced10Official California county-rule source anchors added for Sacramento County; direct office confirmation remains pending before verified status.
#18San Benito CountyPartially sourced10Official California county-rule source anchors added for San Benito County; direct office confirmation remains pending before verified status.
#19San Bernardino CountyPartially sourced10Official California county-rule source anchors added for San Bernardino County; direct office confirmation remains pending before verified status.
#20San Joaquin CountyPartially sourced10Official California county-rule source anchors added for San Joaquin County; direct office confirmation remains pending before verified status.
#21San Luis Obispo CountyPartially sourced10Official California county-rule source anchors added for San Luis Obispo County; direct office confirmation remains pending before verified status.
#22Santa Clara CountyPartially sourced10Official California county-rule source anchors added for Santa Clara County; direct office confirmation remains pending before verified status.
#23Santa Cruz CountyPartially sourced10Official California county-rule source anchors added for Santa Cruz County; direct office confirmation remains pending before verified status.
#24Solano CountyPartially sourced10Official California county-rule source anchors added for Solano County; direct office confirmation remains pending before verified status.
#25Stanislaus CountyPartially sourced10Official California county-rule source anchors added for Stanislaus County; direct office confirmation remains pending before verified status.
#26Sutter CountyPartially sourced10Official California county-rule source anchors added for Sutter County; direct office confirmation remains pending before verified status.
#27Tulare CountyPartially sourced10Official California county-rule source anchors added for Tulare County; direct office confirmation remains pending before verified status.
#28Tuolumne CountyPartially sourced10Official California county-rule source anchors added for Tuolumne County; direct office confirmation remains pending before verified status.
#29Ventura CountyPartially sourced10Official California county-rule source anchors added for Ventura County; direct office confirmation remains pending before verified status.
#30Yolo CountyPartially sourced10Official California county-rule source anchors added for Yolo County; direct office confirmation remains pending before verified status.
#31Butte CountyPartially sourced9Official California county-rule source anchors added for Butte County; direct office confirmation remains pending before verified status.
#32Colusa CountyPartially sourced9Official California county-rule source anchors added for Colusa County; direct office confirmation remains pending before verified status.
#33Glenn CountyPartially sourced9Official California county-rule source anchors added for Glenn County; direct office confirmation remains pending before verified status.
#34Lake CountyPartially sourced9Official California county-rule source anchors added for Lake County; direct office confirmation remains pending before verified status.
#35Lassen CountyPartially sourced9Official California county-rule source anchors added for Lassen County; direct office confirmation remains pending before verified status.
#36Los Angeles CountyPartially sourced9Official California county-rule source anchors added for Los Angeles County; direct office confirmation remains pending before verified status.
#37Marin CountyPartially sourced9Official California county-rule source anchors added for Marin County; direct office confirmation remains pending before verified status.
#38Napa CountyPartially sourced9Official California county-rule source anchors added for Napa County; direct office confirmation remains pending before verified status.
#39Nevada CountyPartially sourced9Official California county-rule source anchors added for Nevada County; direct office confirmation remains pending before verified status.
#40Placer CountyPartially sourced9Official California county-rule source anchors added for Placer County; direct office confirmation remains pending before verified status.
#41Plumas CountyPartially sourced9Official California county-rule source anchors added for Plumas County; direct office confirmation remains pending before verified status.
#42Santa Barbara CountyPartially sourced9Official California county-rule source anchors added for Santa Barbara County; direct office confirmation remains pending before verified status.
#43Sierra CountyPartially sourced9Official California county-rule source anchors added for Sierra County; direct office confirmation remains pending before verified status.
#44Sonoma CountyPartially sourced9Official California county-rule source anchors added for Sonoma County; direct office confirmation remains pending before verified status.
#45Yuba CountyPartially sourced9Official California county-rule source anchors added for Yuba County; direct office confirmation remains pending before verified status.
#46Mendocino CountyPartially sourced8Official California county-rule source anchors added for Mendocino County; direct office confirmation remains pending before verified status.
#47Modoc CountyPartially sourced8Official California county-rule source anchors added for Modoc County; direct office confirmation remains pending before verified status.
#48San Diego CountyPartially sourced8Official California county-rule source anchors added for San Diego County; direct office confirmation remains pending before verified status.
#49Shasta CountyPartially sourced8Official California county-rule source anchors added for Shasta County; direct office confirmation remains pending before verified status.
#50Siskiyou CountyPartially sourced8Official California county-rule source anchors added for Siskiyou County; direct office confirmation remains pending before verified status.
#51Tehama CountyPartially sourced8Official California county-rule source anchors added for Tehama County; direct office confirmation remains pending before verified status.
#52Trinity CountyPartially sourced8Official California county-rule source anchors added for Trinity County; direct office confirmation remains pending before verified status.
#53Alameda CountyPartially sourced7Official California county-rule source anchors added for Alameda County; direct office confirmation remains pending before verified status.
#54Contra Costa CountyPartially sourced7Official California county-rule source anchors added for Contra Costa County; direct office confirmation remains pending before verified status.
#55San Francisco CountyPartially sourced7Official California county-rule source anchors added for San Francisco County; direct office confirmation remains pending before verified status.
#56San Mateo CountyPartially sourced7Official California county-rule source anchors added for San Mateo County; direct office confirmation remains pending before verified status.
#57Humboldt CountyPartially sourced5Official California county-rule source anchors added for Humboldt County; direct office confirmation remains pending before verified status.
#58Del Norte CountyPartially sourced4Official California county-rule source anchors added for Del Norte County; direct office confirmation remains pending before verified status.
Research context
How To Read This Ranking
Ranking Source Trail
Solar potential rankings use county-centroid solar climatology as a broad planning proxy.