California statistical areas

The U.S. State of California currently has 42 statistical areas that have been delineated by the federal Office of Management and Budget (OMB).

On July 21, 2023, the OMB delineated seven combined statistical areas, 25 metropolitan statistical areas, and ten micropolitan statistical areas in California.^[1] As of 2023, the largest of these in the state is the Los Angeles-Long Beach, CA CSA, encompassing greater Los Angeles.

Background

The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico.^[2] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.

The OMB defines a core-based statistical area (commonly referred to as a CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population,^[2] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core".^[2] The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.^[2]

The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%.^[2] The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.

Table

The 42 United States statistical areas and 58 counties of the State of California^[a]
Combined statistical area^[1]	2023 population (est.)^[3]	Core-based statistical area^[1]	2023 population (est.)^[3]	County	2023 population (est.)^[3]	Metropolitan division^[1]	2023 population (est.)^[3]
Los Angeles–Long Beach, CA CSA	18,316,743	Los Angeles–Long Beach–Anaheim, CA MSA	12,799,100	Los Angeles County, California	9,663,345	Los Angeles-Long Beach-Glendale, CA MD	9,663,345
		Los Angeles–Long Beach–Anaheim, CA MSA	12,799,100	Orange County, California	3,135,755	Anaheim-Santa Ana-Irvine, CA MD	3,135,755
		Riverside–San Bernardino–Ontario, CA MSA	4,688,053	Riverside County, California	2,492,442	none
		Riverside–San Bernardino–Ontario, CA MSA	4,688,053	San Bernardino County, California	2,195,611
		Oxnard-Thousand Oaks-Ventura, CA MSA	829,590	Ventura County, California	829,590
San Jose-San Francisco-Oakland, CA CSA	9,482,836	San Francisco–Oakland–Fremont, CA MSA	4,566,961	Alameda County, California	1,622,188	Oakland-Fremont-Berkeley, CA MD	2,777,213
				Contra Costa County, California	1,155,025	Oakland-Fremont-Berkeley, CA MD	2,777,213
				San Francisco County, California	808,988	San Francisco-San Mateo-Redwood City, CA MD	1,535,341
				San Mateo County, California	726,353	San Francisco-San Mateo-Redwood City, CA MD	1,535,341
				Marin County, California	254,407	San Rafael, CA MD	254,407
		San Jose-Sunnyvale-Santa Clara, CA MSA	1,945,767	Santa Clara County, California	1,877,592	none
		San Jose-Sunnyvale-Santa Clara, CA MSA	1,945,767	San Benito County, California	68,175
		Stockton, CA MSA	800,965	San Joaquin County, California	800,965
		Modesto, CA MSA	551,430	Stanislaus County, California	551,430
		Santa Rosa-Petaluma, CA MSA	481,812	Sonoma County, California	481,812
		Vallejo, CA MSA	449,218	Solano County, California	449,218
		Merced, CA MSA	291,920	Merced County, California	291,920
		Santa Cruz-Watsonville, CA MSA	261,547	Santa Cruz County, California	261,547
		Napa, CA MSA	133,216	Napa County, California	133,216
none		San Diego-Chula Vista-Carlsbad, CA MSA	3,269,973	San Diego County, California	3,269,973
Sacramento-Roseville, CA CSA	2,706,315	Sacramento-Roseville-Folsom, CA MSA	2,420,608	Sacramento County, California	1,584,288
				Placer County, California	423,561
				Yolo County, California	220,544
				El Dorado County, California	192,215
		Yuba City, CA MSA	183,670	Sutter County, California	97,948
		Yuba City, CA MSA	183,670	Yuba County, California	85,722
		Truckee-Grass Valley, CA μSA	102,037	Nevada County, California	102,037
Fresno-Hanford–Corcoran, CA CSA	1,332,702	Fresno, CA MSA	1,180,020	Fresno County, California	1,017,162
		Fresno, CA MSA	1,180,020	Madera County, California	162,858
		Hanford-Corcoran, CA MSA	152,682	Kings County, California	152,682
none		Bakersfield-Delano, CA MSA	913,820	Kern County, California	913,820
		Visalia, CA MSA	479,468	Tulare County, California	479,468
		Santa Maria-Santa Barbara, CA MSA	441,257	Santa Barbara County, California	441,257
		Salinas, CA MSA	430,723	Monterey County, California	430,723
		San Luis Obispo-Paso Robles, CA MSA	281,639	San Luis Obispo County, California	281,639
Redding-Red Bluff, CA CSA	245,262	Redding, CA MSA	180,366	Shasta County, California	180,366
Redding-Red Bluff, CA CSA	245,262	Red Bluff, CA μSA	64,896	Tehama County, California	64,896
none		Chico, CA MSA	207,172	Butte County, California	207,172
		El Centro, CA MSA	179,057	Imperial County, California	179,057
		Eureka-Arcata, CA μSA	133,985	Humboldt County, California	133,985
		Ukiah, CA μSA	89,108	Mendocino County, California	89,108
		Clearlake, CA μSA	67,878	Lake County, California	67,878
		Sonora, CA μSA	54,204	Tuolumne County, California	54,204
		Susanville, CA μSA	28,861	Lassen County, California	28,861
Brookings-Crescent City, OR-CA CSA	49,885 26,589 (CA)	Crescent City, CA μSA	26,589	Del Norte County, California	26,589
Brookings-Crescent City, OR-CA CSA	49,885 26,589 (CA)	Brookings, OR μSA	23,296	Curry County, Oregon	22,364
none		Bishop, CA μSA	18,527	Inyo County, California	18,527
Reno-Carson City-Gardnerville Ranchos, NV-CA CSA	699,307 1,141 (CA)	Reno, NV MSA	564,782	Washoe County, Nevada	498,022
				Lyon County, Nevada	62,583
				Storey County, Nevada	4,177
		Carson City, NV MSA	58,036	Carson City, Nevada	58,036
		Gardnerville Ranchos, NV-CA μSA	50,686 1,141 (CA)	Douglas County, Nevada	49,545
		Gardnerville Ranchos, NV-CA μSA	50,686 1,141 (CA)	Alpine County, California	1,141
		Fallon, NV μSA	25,803	Churchill County, Nevada	25,803
none				Calaveras County, California	46,565
				Siskiyou County, California	42,905
				Amador County, California	41,811
				Glenn County, California	28,129
				Colusa County, California	22,037
				Plumas County, California	19,131
				Mariposa County, California	16,919
				Trinity County, California	15,670
				Mono County, California	13,066
				Modoc County, California	8,500
				Sierra County, California	3,200
State of California					38,965,193

Core-based statistical areas

The following table provides the in-state population ranking of each CBSA along with its rate of population change over time.

The 35 core-based statistical areas of the State of California^[b]
2023 rank	Core-based statistical area^[1]	Population
2023 rank	Core-based statistical area^[1]	2023 estimate^[3]	Change	2020 Census^[4]	Change	2010 Census^[5]
1	Los Angeles-Long Beach-Anaheim, CA MSA	12,799,100	−3.04%	13,200,998	+2.90%	12,828,837
2	Riverside-San Bernardino-Ontario, CA MSA	4,688,053	+1.92%	4,599,839	+8.88%	4,224,851
3	San Francisco-Oakland-Fremont, CA MSA	4,566,961	−3.83%	4,749,008	+9.54%	4,335,391
4	San Diego-Chula Vista-Carlsbad, CA MSA	3,269,973	−0.87%	3,298,634	+6.57%	3,095,313
5	Sacramento-Roseville-Folsom, CA MSA	2,420,608	+0.97%	2,397,382	+11.55%	2,149,127
6	San Jose-Sunnyvale-Santa Clara, CA MSA	1,945,767	−2.73%	2,000,468	+8.90%	1,836,911
7	Fresno, CA MSA	1,180,020	+1.30%	1,164,909	+7.73%	1,081,315
8	Bakersfield-Delano, CA MSA	913,820	+0.50%	909,235	+8.29%	839,631
9	Oxnard-Thousand Oaks-Ventura, CA MSA	829,590	−1.69%	843,843	+2.49%	823,318
10	Stockton, CA MSA	800,965	+2.79%	779,233	+13.71%	685,306
11	Modesto, CA MSA	551,430	−0.26%	552,878	+7.47%	514,453
12	Santa Rosa-Petaluma, CA MSA	481,812	−1.44%	488,863	+1.03%	483,878
13	Visalia, CA MSA	479,468	+1.34%	473,117	+7.00%	442,179
14	Vallejo, CA MSA	449,218	−0.94%	453,491	+9.71%	413,344
15	Santa Maria-Santa Barbara, CA MSA	441,257	−1.56%	448,229	+5.74%	423,895
16	Salinas, CA MSA	430,723	−1.89%	439,035	+5.78%	415,057
17	Merced, CA MSA	291,920	+3.81%	281,202	+9.93%	255,793
18	San Luis Obispo-Paso Robles, CA MSA	281,639	−0.28%	282,424	+4.74%	269,637
19	Santa Cruz-Watsonville, CA MSA	261,547	−3.44%	270,861	+3.23%	262,382
20	Chico, CA MSA	207,172	−2.11%	211,632	−3.80%	220,000
21	Yuba City, CA MSA	183,670	+1.36%	181,208	+8.58%	166,892
22	Redding, CA MSA	180,366	−0.98%	182,155	+2.78%	177,223
23	El Centro, CA MSA	179,057	−0.36%	179,702	+2.96%	174,528
24	Hanford-Corcoran, CA MSA	152,682	+0.13%	152,486	−0.32%	152,982
25	Eureka-Arcata, CA μSA	133,985	−1.82%	136,463	+1.37%	134,623
26	Napa, CA MSA	133,216	−3.48%	138,019	+1.12%	136,484
27	Truckee-Grass Valley, CA μSA	102,037	−0.20%	102,241	+3.52%	98,764
28	Ukiah, CA μSA	89,108	−2.72%	91,601	+4.28%	87,841
29	Clearlake, CA μSA	67,878	−0.42%	68,163	+5.41%	64,665
30	Red Bluff, CA μSA	64,896	−1.42%	65,829	+3.73%	63,463
31	Sonora, CA μSA	54,204	−2.55%	55,620	+0.46%	55,365
32	Susanville, CA μSA	28,861	−11.82%	32,730	−6.20%	34,895
33	Crescent City, CA μSA	26,589	−4.16%	27,743	−3.03%	28,610
34	Bishop, CA μSA	18,527	−2.57%	19,016	+2.53%	18,546
35	Gardnerville Ranchos, NV-CA μSA (CA)	1,141	−5.23%	1,204	+2.47%	1,175
	Gardnerville Ranchos, NV-CA μSA	50,686	−0.01%	50,692	+5.23%	48,172

Combined statistical areas

The following table provides the in-state population ranking of each CSA along with its rate of population change over time.

The seven combined statistical areas of the State of California^[c]
2023 rank	Combined statistical area^[1]	Population
2023 rank	Combined statistical area^[1]	2023 estimate^[3]	Change	2020 Census^[4]	Change	2010 Census^[5]
1	Los Angeles-Long Beach, CA CSA	18,316,743	−1.76%	18,644,680	+4.29%	17,877,006
2	San Jose-San Francisco-Oakland, CA CSA	9,482,836	−2.38%	9,714,023	+8.85%	8,923,942
3	Sacramento-Roseville, CA CSA	2,706,315	+0.95%	2,680,831	+11.02%	2,414,783
4	Fresno-Hanford-Corcoran, CA CSA	1,332,702	+1.16%	1,317,395	+6.73%	1,234,297
5	Redding-Red Bluff, CA CSA	245,262	−1.10%	247,984	+3.03%	240,686
6	Brookings-Crescent City, OR-CA CSA (CA)	26,589	−4.16%	27,743	−3.03%	28,610
7	Reno-Carson City-Gardnerville Ranchos, NV-CA CSA (CA)	1,141	−5.23%	1,204	+2.47%	1,175
	Brookings-Crescent City, OR-CA CSA	49,885	−2.55%	51,189	+0.42%	50,974
	Reno-Carson City-Gardnerville Ranchos, NV-CA CSA	699,307	+2.14%	684,678	+13.04%	605,720

Notes

^ An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.
^ For CBSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CBSA as well as the CBSA's total population. Only the intrastate population is ranked.
^ For CSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CSA as well as the CSA's total population. Only the intrastate population is ranked.

References

^ ^a ^b ^c ^d ^e ^f Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "0MB BULLETIN NO. 23-01" (PDF). Office of Management and Budget. Retrieved October 23, 2023.{{cite web}}: CS1 maint: multiple names: authors list (link)
^ ^a ^b ^c ^d ^e "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.
^ ^a ^b ^c ^d ^e ^f "County Population Totals and Components of Change: 2020-2023". United States Census Bureau, Population Division. March 2023. Retrieved May 21, 2024.
^ ^a ^b "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.
^ ^a ^b "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.

External links

37°11′03″N 119°28′11″W / 37.1841°N 119.4696°W / 37.1841; -119.4696 (State of California)

[3] An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.

[5] For CBSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CBSA as well as the CBSA's total population. Only the intrastate population is ranked.

[8] For CSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CSA as well as the CSA's total population. Only the intrastate population is ranked.

[OMB_20230721-1] ^ ^a ^b ^c ^d ^e ^f Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "0MB BULLETIN NO. 23-01" (PDF). Office of Management and Budget. Retrieved October 23, 2023.{{cite web}}: CS1 maint: multiple names: authors list (link)

[CBSA-2] "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.

[PopCBSA-4] ^ ^a ^b ^c ^d ^e ^f "County Population Totals and Components of Change: 2020-2023". United States Census Bureau, Population Division. March 2023. Retrieved May 21, 2024.

[USC2020-6] "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.

[USC2010-7] "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.

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