This is a 1.5 percent rise in Riverside County’s population, from 2,422,764 in 2020 to 2,458,395 in 2021.
Riverside County had the fourth largest population in California in 2021.
The US Census Bureau found more than 73 percent of counties in the US saw a natural decrease in population in 2021. This is up from a 55.5 percent increase in 2020.
The Midwest suffered the most sustained population decreases, with many counties along the US East Coast and through the Rocky Mountains seeing increases.
The US population continues to grow, though at a slower rate than before.
California Counties By Population Change from 2020 to 2021
| County | 2020 Estimated Population | 2021 Estimated Population | % Change in Population From Year to Year |
|---|---|---|---|
| San Benito County | 64,507 | 66,677 | 3.4% |
| Alpine County | 1,198 | 1,235 | 3.1% |
| Calaveras County | 45,327 | 46,221 | 2% |
| Yuba County | 81,932 | 83,421 | 1.8% |
| Madera County | 156,620 | 159,410 | 1.8% |
| Amador County | 40,541 | 41,259 | 1.8% |
| Sierra County | 3,228 | 3,283 | 1.7% |
| Merced County | 281,726 | 286,461 | 1.7% |
| Placer County | 405,741 | 412,300 | 1.6% |
| Riverside County | 2,422,764 | 2,458,395 | 1.5% |
| Del Norte County | 27,709 | 28,100 | 1.4% |
| Lassen County | 32,719 | 33,159 | 1.3% |
| Nevada County | 102,199 | 103,487 | 1.3% |
| San Joaquin County | 780,517 | 789,410 | 1.1% |
| El Dorado County | 191,114 | 193,221 | 1.1% |
| Lake County | 68,174 | 68,766 | 0.9% |
| Kern County | 909,997 | 917,673 | 0.8% |
| Plumas County | 19,769 | 19,915 | 0.7% |
| Tulare County | 473,736 | 477,054 | 0.7% |
| San Bernardino County | 2,182,740 | 2,194,710 | 0.5% |
| Kings County | 152,627 | 153,443 | 0.5% |
| Tuolumne County | 55,516 | 55,810 | 0.5% |
| Fresno County | 1,008,966 | 1,013,581 | 0.5% |
| Siskiyou County | 43,962 | 44,118 | 0.4% |
| Yolo County | 216,255 | 216,986 | 0.3% |
| San Luis Obispo County | 282,231 | 283,159 | 0.3% |
| Mono County | 13,206 | 13,247 | 0.3% |
| Colusa County | 21,853 | 21,917 | 0.3% |
| Imperial County | 179,489 | 179,851 | 0.2% |
| Sacramento County | 1,586,241 | 1,588,921 | 0.2% |
| Shasta County | 181,893 | 182,139 | 0.1% |
| Mariposa County | 17,124 | 17,147 | 0.1% |
| Stanislaus County | 552,710 | 552,999 | 0.1% |
| Modoc County | 8,658 | 8,661 | 0% |
| Humboldt County | 136,351 | 136,310 | 0% |
| Mendocino County | 91,354 | 91,305 | -0.1% |
| Trinity County | 16,088 | 16,060 | -0.2% |
| Tehama County | 65,615 | 65,498 | -0.2% |
| Monterey County | 438,500 | 437,325 | -0.3% |
| Inyo County | 19,023 | 18,970 | -0.3% |
| Glenn County | 28,893 | 28,805 | -0.3% |
| San Diego County | 3,297,252 | 3,286,069 | -0.3% |
| Solano County | 453,274 | 451,716 | -0.3% |
| Contra Costa County | 1,165,562 | 1,161,413 | -0.4% |
| Santa Barbara County | 448,096 | 446,475 | -0.4% |
| Ventura County | 842,921 | 839,784 | -0.4% |
| Sutter County | 99,480 | 99,063 | -0.4% |
| Sonoma County | 488,345 | 485,887 | -0.5% |
| Orange County | 3,184,101 | 3,167,809 | -0.5% |
| Marin County | 261,776 | 260,206 | -0.6% |
| Butte County | 210,083 | 208,309 | -0.8% |
| Santa Cruz County | 270,353 | 267,792 | -0.9% |
| Napa County | 137,608 | 136,207 | -1% |
| Los Angeles County | 9,989,165 | 9,829,544 | -1.6% |
| Alameda County | 1,679,844 | 1,648,556 | -1.9% |
| Santa Clara County | 1,930,598 | 1,885,508 | -2.3% |
| San Mateo County | 762,453 | 737,888 | -3.2% |
| San Francisco County | 870,014 | 815,201 | -6.3% |
ORGANIZATIONS IN THIS STORY
Moreno Valley• Bermuda Dunes• Good Hope• Lake Elsinore• Glen Avon• Anza• Coachella• Sunnyslope• Winchester• City of Corona• East Hemet• Lakeview• Valle Vista• Thermal• Idyllwild-Pine Cove• Warm Springs• Menifee• Ripley• Desert Center• Rubidoux• Lake Riverside• Woodcrest• Hemet City• Desert Palms• Norco• Mecca• La Quinta City• Aguanga• Crestmore Heights• French Valley• Home Gardens• March Arb• Temecula• Thousand Palms• Blythe• Nuevo• Riverside• Palm Springs• Indian Wells• North Shore• Rancho Mirage• Mountain Center• Eastvale• City of Palm Desert• Indio• Green Acres• Cathedral City• Desert Hot Springs• Sky Valley• Indio Hills• Calimesa• Homeland• Oasis• Highgrove• Beaumont• Desert Edge• Temescal Valley• San Jacinto• Wildomar• Lake Mathews• Lakeland Village Cdp• Garnet• Perris• Mead Valley• Banning• Coronita• Pedley• Cherry Valley• Romoland• Vista Santa Rosa• Canyon Lake• Cabazon• Mesa Verde• Whitewater• Meadowbrook• Murrieta• Mira Loma
!RECEIVE ALERTS
The next time we write about any of these orgs, we’ll email you a link to the story. You may edit your settings or unsubscribe at any time.
DONATE
Help support the Metric Media Foundation's mission to restore community based news.
Alerts Sign-up