US Census Data

Most densely populated in California

California counties and cities ranked by population density.

This page ranks the counties and cities of California by population density — which have the most people per square mile, according to the US Census Bureau's American Community Survey 5-year estimates.

Among counties, San Francisco County leads at 17,914/sq mi.

Among cities & places, Isla Vista leads at 24,884/sq mi.

Counties

#NamePeople / sq mi
1San Francisco County17,914/sq mi
2Orange County3,991/sq mi
3Los Angeles County2,426/sq mi
4Alameda County2,240/sq mi
5San Mateo County1,661/sq mi
6Sacramento County1,641/sq mi
7Contra Costa County1,620/sq mi
8Santa Clara County1,474/sq mi
9San Diego County780/sq mi
10Santa Cruz County598/sq mi
11San Joaquin County566/sq mi
12Solano County549/sq mi
13Marin County497/sq mi
14Ventura County455/sq mi
15Stanislaus County369/sq mi
16Riverside County340/sq mi
17Sonoma County308/sq mi
18Placer County293/sq mi
19Yolo County215/sq mi
20Napa County181/sq mi
21Fresno County170/sq mi
22Sutter County164/sq mi
23Santa Barbara County162/sq mi
24Merced County147/sq mi
25Monterey County133/sq mi
26Yuba County131/sq mi
27Butte County128/sq mi
28El Dorado County113/sq mi
29Kern County112/sq mi
30Kings County110/sq mi
31San Bernardino County109/sq mi
32Nevada County107/sq mi
33Tulare County99/sq mi
34San Luis Obispo County85/sq mi
35Madera County74/sq mi
36Amador County69/sq mi
37Lake County54/sq mi
38Shasta County48/sq mi
39San Benito County48/sq mi
40Calaveras County45/sq mi
41Imperial County43/sq mi
42Humboldt County38/sq mi
43Del Norte County27/sq mi
44Mendocino County26/sq mi
45Tuolumne County25/sq mi
46Tehama County22/sq mi
47Glenn County22/sq mi
48Colusa County19/sq mi
49Mariposa County12/sq mi
50Plumas County8/sq mi
51Siskiyou County7/sq mi
52Lassen County7/sq mi
53Trinity County5/sq mi
54Mono County4/sq mi
55Sierra County3/sq mi
56Alpine County2/sq mi
57Modoc County2/sq mi
58Inyo County2/sq mi

Cities & places

Top 100.
#NamePeople / sq mi
1Isla Vista24,884/sq mi
2Maywood20,989/sq mi
3Rollingwood20,956/sq mi
4Walnut Park20,611/sq mi
5Cudahy18,980/sq mi
6West Hollywood18,590/sq mi
7Westmont18,564/sq mi
8Lennox18,556/sq mi
9San Francisco17,914/sq mi
10Huntington Park17,840/sq mi
11Florence-Graham17,588/sq mi
12East Rancho Dominguez17,313/sq mi
13Lawndale15,776/sq mi
14Bell Gardens15,722/sq mi
15East Los Angeles15,378/sq mi
16El Monte Mobile Village14,788/sq mi
17Hawaiian Gardens14,618/sq mi
18Hawthorne14,116/sq mi
19Hermosa Beach13,500/sq mi
20Lynwood13,488/sq mi
21Daly City13,407/sq mi
22Alum Rock13,372/sq mi
23Burbank13,346/sq mi
24Midway City13,280/sq mi
25East Bakersfield13,184/sq mi
26Bell13,088/sq mi
27South Monrovia Island12,903/sq mi
28Willowbrook12,903/sq mi
29South Gate12,689/sq mi
30Bellflower12,652/sq mi
31Stanton12,454/sq mi
32Ashland12,365/sq mi
33Citrus12,343/sq mi
34Cherryland12,213/sq mi
35San Pablo12,106/sq mi
36West Puente Valley11,874/sq mi
37Parklawn11,808/sq mi
38South San Jose Hills11,652/sq mi
39Inglewood11,643/sq mi
40East Palo Alto11,528/sq mi
41Berkeley11,525/sq mi
42Santa Ana11,383/sq mi
43Redondo Beach11,264/sq mi
44El Monte11,203/sq mi
45Contra Costa Centre11,194/sq mi
46North Fair Oaks11,143/sq mi
47Paramount11,118/sq mi
48Albany11,044/sq mi
49Del Aire11,023/sq mi
50Santa Monica10,885/sq mi
51East San Gabriel10,802/sq mi
52La Puente10,753/sq mi
53Valinda10,744/sq mi
54Alhambra10,678/sq mi
55Lomita10,673/sq mi
56Baldwin Park10,663/sq mi
57Norwalk10,375/sq mi
58South Whittier10,342/sq mi
59Broadmoor10,341/sq mi
60Marina del Rey10,312/sq mi
61Vincent10,287/sq mi
62Gardena10,253/sq mi
63Charter Oak10,147/sq mi
64West Whittier-Los Nietos10,101/sq mi
65Emeryville10,019/sq mi
66San Fernando9,988/sq mi
67Mayfair9,980/sq mi
68Artesia9,901/sq mi
69Rosemead9,753/sq mi
70South San Gabriel9,692/sq mi
71North El Monte9,674/sq mi
72San Lorenzo9,670/sq mi
73West Carson9,669/sq mi
74Fruitridge Pocket9,593/sq mi
75Garden Grove9,503/sq mi
76San Gabriel9,355/sq mi
77Compton9,328/sq mi
78East Whittier9,230/sq mi
79Lemon Hill9,111/sq mi
80Long Beach9,048/sq mi
81Downey9,009/sq mi
82Westminster8,980/sq mi
83University of California-Santa Barbara8,951/sq mi
84Temple City8,926/sq mi
85Foothill Farms8,888/sq mi
86Manhattan Beach8,791/sq mi
87Bret Harte8,737/sq mi
88Foster City8,704/sq mi
89La Palma8,635/sq mi
90Bostonia8,589/sq mi
91Lakewood8,570/sq mi
92San Mateo8,534/sq mi
93Bayview8,312/sq mi
94Tonyville8,258/sq mi
95La Habra8,227/sq mi
96Los Angeles8,199/sq mi
97La Cresta8,178/sq mi
98San Pasqual7,907/sq mi
99Cottonwood7,896/sq mi
100Buena Park7,889/sq mi

Nationwide

1

Other rankings in California

20

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