(CO-99-13) Population Estimates for Counties by Age Group:  July 1, 1999
  
Source:  Population Estimates Program, Population Division, U.S. Census Bureau, Washington, DC  20233
Contact:  Demographic Call Center Staff, 1-866-758-1060 
          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                       33145121   2499258  6424165  3318684 10707327  6548155 25152040 22739131  3647532   424077
Alameda County                        1415582     95250   249992   139323   487565   294383  1107313  1008398   149069    18443
Alpine County                            1161        73      208      102      413      308      909      840       57        7
Amador County                           34153      1500     5129     3031     9848     8470    28255    26010     6175      654
Butte County                           195220     12381    36215    24041    51477    39289   151540   135437    31817     3692
Calaveras County                        40051      2269     7630     1754    10517    10880    31212    29263     7001      598
Colusa County                           18844      1503     4565     1526     5311     3779    13437    12026     2160      246
Contra Costa County                    933141     61882   173144    72283   302253   216307   723231   664606   107272    11827
Del Norte County                        26477      1739     5496     2235     8265     5422    19952    18331     3320      300
El Dorado County                       161358     10599    32310     9672    51697    37011   122709   113612    20069     1656
Fresno County                          763069     68924   178432    75375   226050   135518   539061   481575    78770     9579
Glenn County                            26328      2146     6255     2005     7124     5329    18790    16976     3469      459
Humboldt County                        121358      7660    23923    11985    37079    25280    92947    83823    15431     1785
Imperial County                        145287     11945    36066    13846    43824    25386   102653    90614    14220     1292
Inyo County                             17958      1013     3303      899     4910     4578    14092    13204     3255      453
Kern County                            642495     57109   147675    59260   200582   117372   456656   410940    60497     5994
Kings County                           123241     10327    26768    14054    43498    19684    89552    80872     8910      945
Lake County                             55405      3412    10438     2844    14164    13578    42900    40157    10969     1023
Lassen County                           33028      1678     5775     3932    12540     6220    26388    24144     2883      279
Los Angeles County                    9329989    732928  1783697  1007744  3070750  1765898  7083151  6368301   968972   116239
Madera County                          116760      8692    25779    11256    33761    22174    85783    76885    15098     1619
Marin County                           236768     12010    32295    15580    81353    62896   197584   185844    32634     3994
Mariposa County                         15605       835     2665      880     4188     4197    12486    11673     2840      264
Mendocino County                        84085      5542    17671     5630    24933    18707    63353    58065    11602     1342
Merced County                          200746     19852    51779    18502    57724    34913   135823   120584    17976     1851
Modoc County                             9210       526     1979      491     2407     2200     6991     6454     1607      204
Mono County                             10512       773     1804      975     4050     2158     8186     7553      752       63
Monterey County                        371756     30965    76085    38780   120256    64875   275581   248072    40795     4779
Napa County                            120962      7516    21314     9829    34745    27194    95221    87395    20364     2889
Nevada County                           92014      4980    17400     4435    26132    22339    71956    67268    16728     1582
Orange County                         2760948    201176   500749   302521   904185   573173  2139356  1927155   279144    35166
Placer County                          239485     15479    48010    16056    74745    56453   182591   167859    28742     3324
Plumas County                           20370      1149     4024      914     5437     5366    15718    14687     3480      304
Riverside County                      1530653    130220   326773   136243   464577   284559  1116836  1010705   188281    19425
Sacramento County                     1184586     85578   234223   107781   380914   240831   896684   817819   135259    14797
San Benito County                       51276      4409    12303     4568    16054     9619    36238    32377     4323      506
San Bernardino County                 1669934    151968   383821   159300   535345   293635  1184688  1061492   145865    15678
San Diego County                      2820844    206459   518536   325305   919190   527934  2170575  1954483   323420    36280
San Francisco County                   746777     33670    91004    67196   271194   169811   637452   597123   113902    15586
San Joaquin County                     563183     47035   126838    51466   169504   107921   406889   365255    60419     7188
San Luis Obispo County                 236953     13997    39872    30193    71525    45893   188762   168757    35473     3960
San Mateo County                       702102     44480   111920    58562   232419   162377   562723   521090    92344    10569
Santa Barbara County                   391071     27440    67987    50154   118394    75431   305549   271158    51665     6991
Santa Clara County                    1647419    114081   289004   162231   566497   347886  1288061  1173072   167720    18825
Santa Cruz County                      245201     16938    45027    27437    83875    46382   189859   169621    25542     3756
Shasta County                          164530     11028    34545    11429    44826    38513   123912   113151    24189     2441
Sierra County                            3334       204      666      138      882      848     2553     2394      596       72
Siskiyou County                         43570      2516     9090     2498    11585    10357    33221    30597     7524      846
Solano County                          385723     29561    82150    32876   130647    74639   285076   259041    35850     3352
Sonoma County                          439970     29310    82672    35636   142998    92152   339441   310735    57202     7102
Stanislaus County                      436790     37927   101649    37750   129982    83142   310491   279725    46340     5475
Sutter County                           78423      5999    16838     6418    21927    17817    58000    52614     9424      985
Tehama County                           54012      3652    11558     3492    13696    12984    40414    37097     8630      998
Trinity County                          12927       735     2596      641     3575     3245     9976     9284     2135      185
Tulare County                          358470     33056    91634    32172   100986    64991   245860   218149    35631     4079
Tuolumne County                         53764      2637     9307     3684    16092    12527    43063    40210     9517      849
Ventura County                         745063     55785   153026    69272   235993   152823   558753   503450    78164     8708
Yolo County                            155573     10978    28695    25075    46425    28788   119844   103623    15612     1922
Yuba County                             59607      5762    13856     5407    16442    11713    41743    37486     6427      650


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.