(CO-99-13) Population Estimates for Counties by Age Group:  July 1, 1991
  
Source:  Population Estimates Program, Population Division, U.S. Census Bureau, Washington, DC  20233
Contact:  Statistical Information Staff, Population Division, U.S. Census Bureau (301-457-2422)
          pop@census.gov (please include a phone number with email correspondence)
  
Internet Release Date:  August 30, 2000

                                        Total      Ages     Ages     Ages     Ages     Ages     Ages     Ages     Ages     Ages
Area Name                          Population       0-4     5-17    18-24    25-44    45-64      16+      21+      65+      85+
                                                                                                                               
    CALIFORNIA                       30414114   2664214  5548528  3327546 10522961  5146909 22976856 20863139  3203956   308530
Alameda County                        1315144    107688   220685   139791   480926   227374  1017574   931091   138680    14250
Alpine County                            1158        86      204      106      447      236      893      831       79        5
Amador County                           31262      1677     4477     3003     9990     6620    25710    23753     5495      470
Butte County                           186851     13887    32155    24411    53081    31574   144929   130656    31743     2928
Calaveras County                        34030      2411     6299     1621     9906     7950    26142    24597     5843      410
Colusa County                           16596      1489     3756     1419     4917     2935    11871    10720     2080      193
Contra Costa County                    822332     66609   146362    69946   288233   160688   629487   580424    90494     8247
Del Norte County                        25849      2063     5175     2260     8757     4482    19233    17790     3112      220
El Dorado County                       133480     10609    25667     8480    46815    25844   100385    93434    16065     1068
Fresno County                          688511     70573   152236    73502   214404   106977   485181   435633    70819     7128
Glenn County                            25199      2318     5608     2018     7287     4414    18015    16408     3554      374
Humboldt County                        120612      9278    22693    12589    40212    20850    91451    83049    14990     1371
Imperial County                        117663     11652    29705    11211    34141    19381    80559    71131    11573      844
Inyo County                             18321      1274     3287      972     5382     3993    14176    13339     3413      365
Kern County                            569829     59251   124858    55152   186093    90316   401195   363019    54159     4317
Kings County                           104357     10373    21927    12735    36924    14354    74787    67525     8044      694
Lake County                             52802      3883     9290     2824    14338    10921    40757    38403    11546      843
Lassen County                           28038      1940     5193     3075    10249     4696    21596    19758     2885      229
Los Angeles County                    8931985    807722  1614962  1052766  3113048  1472220  6747676  6091200   871267    87107
Madera County                           95042      8452    21191     8812    28595    16577    68209    61426    11415      993
Marin County                           232088     14793    31020    16708    87749    52880   190895   180002    28938     2929
Mariposa County                         14862      1009     2517      899     4479     3464    11673    10948     2494      186
Mendocino County                        81543      6431    16498     5763    26223    15527    60791    56041    11101     1015
Merced County                          185381     20566    44518    19251    56482    27797   125910   112346    16767     1392
Modoc County                             9693       680     2038      552     2763     2020     7248     6718     1640      158
Mono County                              9806       861     1613      879     4142     1680     7541     7018      631       42
Monterey County                        361559     34593    68525    45080   123664    54504   267662   240323    35193     3445
Napa County                            111897      8082    18712     9768    34922    21739    87703    80822    18674     2187
Nevada County                           81419      5437    14865     4212    25126    16973    62985    59107    14806     1143
Orange County                         2445044    204329   416609   291008   869958   435367  1888438  1710601   227773    24083
Placer County                          181342     14302    34928    13140    62068    35955   136655   126183    20949     2028
Plumas County                           20095      1383     3867      951     5893     4588    15316    14372     3413      230
Riverside County                      1248277    121771   247775   116762   402049   200063   910315   830221   159857    13415
Sacramento County                     1103715     96361   206875   109759   387720   188131   827111   758226   114869    10269
San Benito County                       37305      3555     8337     3524    12132     6067    26528    23885     3690      352
San Bernardino County                 1491021    157616   321134   153124   508775   222133  1053083   949371   128239    11268
San Diego County                      2554271    216104   432347   329554   895633   400600  1965625  1774941   280033    25971
San Francisco County                   725237     38897    83045    73468   287006   137606   616567   579187   105215    12059
San Joaquin County                     494221     47369   103995    48943   158675    80757   356556   322219    54482     5353
San Luis Obispo County                 219091     15180    34646    30057    71798    36005   173977   156298    31405     2856
San Mateo County                       654577     48973    99566    59838   233847   130388   520506   483465    81965     7791
Santa Barbara County                   374051     29747    60596    52370   122270    62658   292262   260391    46410     5223
Santa Clara County                    1508020    122040   251644   164680   562208   272702  1171021  1069005   134746    12683
Santa Cruz County                      228984     17909    38710    27035    83328    36400   177892   160149    25602     3076
Shasta County                          154034     12737    31101    11556    46703    30487   114385   104994    21450     1728
Sierra County                            3318       246      651      144      974      720     2503     2356      583       57
Siskiyou County                         43917      3160     8920     2679    12862     9033    32996    30526     7263      649
Solano County                          354889     33171    72068    34353   129752    56730   258792   235671    28815     2214
Sonoma County                          396592     31243    70042    33752   139130    69295   304493   280924    53130     5367
Stanislaus County                      385831     38330    83867    35800   124027    62763   274206   248842    41044     4013
Sutter County                           67159      6065    13772     5945    20464    13068    49209    44854     7845      679
Tehama County                           51025      4047    10319     3507    14195    10479    38022    35142     8478      781
Trinity County                          13087       950     2597      714     4000     2866     9898     9233     1960      134
Tulare County                          322884     33030    77222    31135    95963    51373   222664   198938    34161     3199
Tuolumne County                         50105      3090     8521     3638    16310    10186    39562    37054     8360      596
Ventura County                         675485     58770   131937    68400   232169   119566   503564   455517    64643     6007
Yolo County                            143853     11484    24523    25968    45841    22165   111105    95694    13872     1404
Yuba County                             59375      6668    12878     5937    17916     9772    41371    37368     6204      492


The estimates presented here were produced by a method which is still in a developmental stage.  They
may not be accurate for populations which are very small or have unusual distributions.  These figures
should be used with caution.