Rank |
County |
Population Density |
1 |
San Francisco County, California
|
17,179.1
|
2 |
Orange County, California
|
3,807.7
|
3 |
Los Angeles County, California
|
2,419.6
|
4 |
Alameda County, California
|
2,043.6
|
5 |
San Mateo County, California
|
1,602.2
|
6 |
Sacramento County, California
|
1,470.8
|
7 |
Contra Costa County, California
|
1,465.2
|
8 |
Santa Clara County, California
|
1,381
|
9 |
San Diego County, California
|
735.8
|
10 |
Santa Cruz County, California
|
589.4
|
11 |
Solano County, California
|
503
|
12 |
San Joaquin County, California
|
492.6
|
13 |
Marin County, California
|
485.1
|
14 |
Ventura County, California
|
446.7
|
15 |
Stanislaus County, California
|
344.2
|
16 |
Sonoma County, California
|
307.1
|
17 |
Riverside County, California
|
303.8
|
18 |
Placer County, California
|
247.6
|
19 |
Yolo County, California
|
197.9
|
20 |
Napa County, California
|
182.4
|
21 |
Sutter County, California
|
157.3
|
22 |
Fresno County, California
|
156.2
|
23 |
Santa Barbara County, California
|
155
|
24 |
Butte County, California
|
134.4
|
25 |
Merced County, California
|
132.2
|
26 |
Monterey County, California
|
126.5
|
27 |
Yuba County, California
|
114.2
|
28 |
Kings County, California
|
110.1
|
29 |
El Dorado County, California
|
106
|
30 |
Kern County, California
|
103.3
|
31 |
Nevada County, California
|
103.1
|
32 |
San Bernardino County, California
|
101.5
|
33 |
Tulare County, California
|
91.7
|
34 |
San Luis Obispo County, California
|
81.7
|
35 |
Madera County, California
|
70.6
|
36 |
Amador County, California
|
64.1
|
37 |
Lake County, California
|
51.5
|
38 |
Shasta County, California
|
46.9
|
39 |
Calaveras County, California
|
44.7
|
40 |
Imperial County, California
|
41.8
|
41 |
San Benito County, California
|
39.8
|
42 |
Humboldt County, California
|
37.7
|
43 |
Del Norte County, California
|
28.4
|
44 |
Mendocino County, California
|
25.1
|
45 |
Tuolumne County, California
|
24.9
|
46 |
Tehama County, California
|
21.5
|
47 |
Glenn County, California
|
21.4
|
48 |
Colusa County, California
|
18.6
|
49 |
Mariposa County, California
|
12.6
|
50 |
Plumas County, California
|
7.8
|
51 |
Lassen County, California
|
7.7
|
52 |
Siskiyou County, California
|
7.2
|
53 |
Mono County, California
|
4.7
|
54 |
Trinity County, California
|
4.3
|
55 |
Sierra County, California
|
3.4
|
56 |
Modoc County, California
|
2.5
|
57 |
Inyo County, California
|
1.8
|
58 |
Alpine County, California
|
1.6
|