Lightning-Fast California Property Data API

At Realie, we take great pride in offering the fastest and most reliable property data API in the industry – delivering real-time parcel insights with virtually zero lag. Whether you are building valuation tools, GIS applications, or automated workflows, our low-latency infrastructure ensures your queries return in milliseconds.

In California, one of the most widely recognized premium sources of parcel data has been ParcelQuest. Thanks to their direct agreements with county assessors, ParcelQuest can charge hundreds of thousands of dollars for statewide access, putting comprehensive CA data out of reach for many developers and organizations.

By contrast, Realie’s California Property Data includes over 14.2 million parcels across all 58 counties, making full coverage affordable and straightforward. Here’s our county-by-county breakdown:

• Alameda – 472,056 parcels

• Alpine – 4,223 parcels

• Amador – 28,883 parcels

• Butte – 118,891 parcels

• Calaveras – 52,194 parcels

• Colusa – 15,186 parcels

• Contra Costa – 405,369 parcels

• Del Norte – 21,332 parcels

• El Dorado – 182,598 parcels

• Fresno – 358,105 parcels

• Glenn – 20,099 parcels

• Humboldt – 93,316 parcels

• Imperial – 114,046 parcels

• Inyo – 23,438 parcels

• Kern – 537,953 parcels

• Kings – 64,239 parcels

• Lake – 69,557 parcels

• Lassen – 43,749 parcels

• Los Angeles – 2,543,331 parcels

• Madera – 83,207 parcels

• Marin – 96,609 parcels

• Mariposa – 21,973 parcels

• Mendocino – 79,282 parcels

• Merced – 117,883 parcels

• Modoc – 32,539 parcels

• Mono – 31,483 parcels

• Monterey – 147,629 parcels

• Napa – 58,424 parcels

• Nevada – 70,252 parcels

• Orange – 952,260 parcels

• Placer – 234,200 parcels

• Plumas – 30,697 parcels

• Riverside – 1,060,447 parcels

• Sacramento – 525,008 parcels

• San Benito – 34,777 parcels

• San Bernardino – 1,080,757 parcels

• San Diego – 1,164,407 parcels

• San Francisco – 216,295 parcels

• San Joaquin – 258,114 parcels

• San Luis Obispo – 150,955 parcels

• San Mateo – 243,643 parcels

• Santa Barbara – 134,495 parcels

• Santa Clara – 550,428 parcels

• Santa Cruz – 101,402 parcels

• Shasta – 122,716 parcels

• Sierra – 7,425 parcels

• Siskiyou – 82,175 parcels

• Solano – 164,219 parcels

• Sonoma – 221,756 parcels

• Stanislaus – 181,499 parcels

• Sutter – 41,086 parcels

• Tehama – 43,328 parcels

• Trinity – 18,599 parcels

• Tulare – 196,252 parcels

• Tuolumne – 54,565 parcels

• Ventura – 296,007 parcels

• Yolo – 74,124 parcels

• Yuba – 39,946 parcels

With Realie, you get complete statewide coverage without any premium fees. Try our API today and unlock every parcel in California at lightning speed.