Census Charts Index > California

California Census Data: Age & Sex by County

Age and sex distributions for California counties are shown in this easy-to-read table and chart combination.

Scroll down for information about Reading the chart.

Source: U.S. Census Bureau 2000 Census.


California Census Data: Age & Sex by County
LocationPopulationAge %Median
Age
Males per 100 FemalesLocation
under 1818-2425-4445-6465 & overAll Ages18 & Over
United States

281,421,906

25.79.630.222.012.4

35.3

96.393.4United States
California

33,871,648

27.39.931.620.510.6

33.3

99.397.1California
Alameda Co.1,443,74124.69.633.921.710.2

34.5

96.694.0Alameda Co.
Alpine Co.1,20822.810.427.529.39.9

39.3

110.8117.2Alpine Co.
Amador Co.35,10020.66.926.228.318.0

42.7

122.5123.4Amador Co.
Butte Co.203,17124.013.624.821.815.8

35.8

96.192.6Butte Co.
Calaveras Co.40,55422.85.522.431.118.2

44.6

98.595.7Calaveras Co.
Colusa Co.18,80431.610.326.919.811.4

31.5

103.4103.8Colusa Co.
Contra Costa Co.948,81626.57.730.623.911.3

36.4

95.492.2Contra Costa Co.
Del Norte Co.27,50725.18.032.222.312.5

36.4

123.3130.3Del Norte Co.
El Dorado Co.156,29926.16.827.826.912.4

39.4

99.597.3El Dorado Co.
Fresno Co.799,40732.111.128.518.59.9

29.9

100.498.2Fresno Co.
Glenn Co.26,45330.88.726.820.713.0

33.7

102.299.5Glenn Co.
Humboldt Co.126,51823.212.427.424.512.5

36.3

97.795.6Humboldt Co.
Imperial Co.142,36131.49.930.418.210.0

31.0

109.3111.4Imperial Co.
Inyo Co.17,94524.45.823.427.319.1

42.8

95.492.9Inyo Co.
Kern Co.661,64531.910.229.818.79.4

30.6

105.3105.3Kern Co.
Kings Co.129,46129.011.835.016.87.4

30.2

134.8148.8Kings Co.
Lake Co.58,30924.16.023.626.819.5

42.7

97.694.7Lake Co.
Lassen Co.33,82821.810.836.921.49.0

34.6

168.8192.2Lassen Co.
Los Angeles Co.9,519,33828.010.332.619.49.7

32.0

97.795.0Los Angeles Co.
Madera Co.123,10929.69.929.120.411.0

32.7

91.886.0Madera Co.
Marin Co.247,28920.35.531.029.713.5

41.3

98.296.4Marin Co.
Mariposa Co.17,13021.66.925.129.217.2

42.9

104.7105.4Mariposa Co.
Mendocino Co.86,26525.58.125.627.113.6

38.9

98.997.1Mendocino Co.
Merced Co.210,55434.510.327.917.89.5

29.0

99.396.6Merced Co.
Modoc Co.9,44925.65.723.327.717.6

41.8

102.498.7Modoc Co.
Mono Co.12,85323.010.333.425.67.6

36.0

121.8126.8Mono Co.
Monterey Co.401,76228.410.931.419.310.0

31.7

107.3107.7Monterey Co.
Napa Co.124,27924.18.527.724.315.4

38.3

99.697.4Napa Co.
Nevada Co.92,03323.16.124.129.317.4

43.1

98.394.7Nevada Co.
Orange Co.2,846,28927.09.433.220.69.9

33.3

99.096.7Orange Co.
LocationPopulationAge %Median
Age
Males per 100 FemalesLocation
under 1818-2425-4445-6465 & overAll Ages18 & Over
United States

281,421,906

25.79.630.222.012.4

35.3

96.393.4United States
California

33,871,648

27.39.931.620.510.6

33.3

99.397.1California
Placer Co.248,39926.56.929.024.513.1

38.0

96.493.9Placer Co.
Plumas Co.20,82422.76.022.630.817.9

44.2

99.897.9Plumas Co.
Riverside Co.1,545,38730.39.228.918.912.7

33.1

99.196.8Riverside Co.
Sacramento Co.1,223,49927.69.531.020.911.1

33.8

95.992.5Sacramento Co.
San Benito Co.53,23432.28.831.519.38.1

31.4

102.599.6San Benito Co.
San Bernardino Co.1,709,43432.310.330.218.78.6

30.3

99.697.2San Bernardino Co.
San Diego Co.2,813,83325.711.332.019.811.2

33.2

101.299.7San Diego Co.
San Francisco Co.776,73314.59.140.522.313.7

36.5

103.4103.1San Francisco Co.
San Joaquin Co.563,59831.010.028.819.610.6

31.9

99.997.2San Joaquin Co.
San Luis Obispo Co.246,68121.713.627.023.314.5

37.3

105.6105.2San Luis Obispo Co.
San Mateo Co.707,16122.97.933.223.512.5

36.8

97.895.6San Mateo Co.
Santa Barbara Co.399,34724.913.329.020.112.7

33.4

100.198.1Santa Barbara Co.
Santa Clara Co.1,682,58524.79.335.421.09.5

34.0

102.8101.9Santa Clara Co.
Santa Cruz Co.255,60223.811.930.823.510.0

35.0

99.797.8Santa Cruz Co.
Shasta Co.163,25626.18.225.325.215.2

38.9

95.191.2Shasta Co.
Sierra Co.3,55523.34.824.030.217.7

43.7

102.097.9Sierra Co.
Siskiyou Co.44,30124.06.722.728.418.1

43.0

96.594.1Siskiyou Co.
Solano Co.394,54228.39.231.321.79.5

33.9

101.5100.2Solano Co.
Sonoma Co.458,61424.58.829.224.912.6

37.5

97.094.0Sonoma Co.
Stanislaus Co.446,99731.19.829.019.510.4

31.7

96.893.4Stanislaus Co.
Sutter Co.78,93029.09.228.221.312.4

34.1

98.094.3Sutter Co.
Tehama Co.56,03927.47.825.723.215.9

37.8

97.795.0Tehama Co.
Trinity Co.13,02222.85.122.732.117.2

44.6

104.2102.6Trinity Co.
Tulare Co.368,02133.810.627.618.29.8

29.2

100.097.7Tulare Co.
Tuolumne Co.54,50120.77.625.327.918.5

42.9

111.5112.2Tuolumne Co.
Ventura Co.753,19728.49.030.721.710.2

34.2

99.797.5Ventura Co.
Yolo Co.168,66025.218.328.218.99.4

29.5

95.692.2Yolo Co.
Yuba Co.60,21931.010.728.019.610.6

31.4

101.699.4Yuba Co.

Reading the Chart:

The entries under the Age % heading are percentages showing the age distribution. For example, the entry in the first row (United States) in the under 18 column is 25.7, meaning that 25.7% of the U.S. population is under 18 years of age. The Age% values add up to approximately 100%.

The length of the colored bars in each Age % table cell are in proportion to the value of the number in the cell. For example, the colored bar in the cell showing 25.7 is 25.7% as wide as the cell.

The length of the colored bars under the Males per 100 Females header are proportional to the value when converted to percentages. For example, 110 males per 100 females = 110 males per 210 people = 52.4%.

The numeric values under the Population header are totals. Here the colored bars represent percentages of the highest population of any county in the state. For example, the county with the highest population will have a colored bar that fills the cell. A county with half that many people will have a colored bar that fills half the cell. For small percentages the bar does not appear.

Abbreviations used in location names: Co.=County, C.A.=Census Area, Pa.=Parish, Mu.=Municipio.

Interested in California? Check out California Climate for data and charts about average weather, daylight, and global warming.

Please note that if you set your browser to display very large text sizes, the table cell sizes will change, and the lengths of the colored bars will not be accurate, although they will still show proportions.

Return to top of page

© 2007 Census-Charts.com