(CO-99-13) Population of Counties by Age Group: April 1, 1990 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 Area Name Total Ages Ages Ages Ages Ages Ages Ages Ages Ages Population 0-4 5-17 18-24 25-44 45-64 16+ 21+ 65+ 85+ PENNSYLVANIA 11882842 810714 1996214 1234666 3652098 2367677 9383014 8519567 1821473 168617 Adams County 78274 5559 14079 8860 24271 14880 60729 54399 10625 1223 Allegheny County 1336449 85257 198182 130545 416072 275358 1083423 996428 231035 20226 Armstrong County 73478 4499 13229 6255 21623 15012 57805 52735 12860 1193 Beaver County 186093 11906 31706 15847 54488 40733 147285 135198 31413 2334 Bedford County 47919 3113 8952 4314 13744 10437 37311 33861 7359 613 Berks County 336523 22945 55786 33848 103606 68016 266324 242419 52322 5193 Blair County 130542 8335 23618 12062 37853 26616 102193 92600 22058 2180 Bradford County 60967 4481 12125 5127 17995 12333 46221 42054 8906 913 Bucks County 541174 40309 99097 49754 185034 108319 416484 380885 58661 5563 Butler County 152013 10423 27350 16712 47802 29277 118403 106050 20449 2198 Cambria County 163062 9427 28634 15300 45788 33446 129673 117467 30467 2517 Cameron County 5913 434 1075 465 1625 1223 4588 4207 1091 84 Carbon County 56803 3549 9477 4807 16475 12039 45307 41752 10456 829 Centre County 124812 6981 15790 36021 36097 18831 104624 84814 11092 1066 Chester County 376389 28483 66043 37960 127770 75421 291941 264747 40712 3823 Clarion County 41699 2454 7254 7084 11119 7996 33147 28080 5792 646 Clearfield County 78097 5175 14540 6998 22556 15859 60773 55178 12969 1162 Clinton County 37182 2207 6485 5041 9926 7595 29526 25756 5928 511 Columbia County 63202 3802 10054 9820 17424 12160 50953 43984 9942 914 Crawford County 86166 5887 16503 9178 24405 16932 66400 59096 13261 1272 Cumberland County 195257 11782 31333 25087 61449 39550 157169 139804 26056 2742 Dauphin County 237813 16787 39094 22300 78923 46836 187882 172998 33873 3139 Delaware County 547658 38941 88352 58961 169959 106955 433756 393652 84490 7907 Elk County 34878 2415 6554 2957 10097 7278 26944 24682 5577 453 Erie County 275575 20159 51409 33107 82192 50753 211772 187685 37955 3254 Fayette County 145351 8935 26297 12814 41409 29914 114389 104266 25982 2162 Forest County 4802 258 873 354 1193 1158 3902 3509 966 84 Franklin County 121082 8107 21559 12036 36919 25041 94928 85870 17420 1742 Fulton County 13837 1004 2717 1295 4068 2968 10541 9545 1785 160 Greene County 39550 2538 7624 3966 11584 7346 30638 27346 6492 638 Huntingdon County 44164 2857 7560 5226 13646 8920 35042 31227 5955 558 Indiana County 89994 5357 15697 15706 24826 16001 71357 60500 12407 1058 Jefferson County 46083 3028 8706 3944 13236 9252 35663 32479 7917 792 Juniata County 20625 1406 3912 1917 6207 4217 15913 14471 2966 341 Lackawanna County 219097 13433 34712 22392 60784 44741 176357 160383 43035 3833 Lancaster County 422822 33956 78346 45154 132180 77894 321755 290015 55292 6114 Lawrence County 96246 6058 16655 8921 26695 20170 76150 69261 17747 1560 Lebanon County 113744 7726 20111 10773 34888 23210 89046 81152 17036 1714 Lehigh County 291130 19612 46553 27452 93752 59026 231868 213240 44735 4342 Luzerne County 328149 19490 50974 31690 92438 69110 266051 243044 64447 5540 Lycoming County 118710 8281 21413 11770 35888 23434 92274 83457 17924 1812 McKean County 47131 3100 8621 4285 13611 9647 36794 33391 7867 845 Mercer County 121003 7603 20866 12568 33851 25402 95901 86394 20713 2021 Mifflin County 46197 3294 8247 4362 13144 9780 36056 32754 7370 641 Monroe County 95681 7206 16760 9864 31154 18252 74091 66936 12445 1049 Montgomery County 678193 46570 106912 61050 221553 140544 540831 499928 101564 10638 Montour County 17735 1269 3067 1508 5487 3476 13891 12775 2928 342 Northampton County 247110 16738 40775 27530 76388 48797 195615 176429 36882 3090 Northumberland County 96771 6070 16462 8155 27304 20506 76918 70745 18274 1720 Perry County 41172 3039 8092 3771 13765 7937 31304 28361 4568 385 Philadelphia County 1585577 119565 262702 187151 488208 289386 1243014 1125475 238565 22090 Pike County 28032 2282 4845 1831 8908 5842 21556 20138 4324 315 Potter County 16717 1197 3409 1292 4633 3460 12654 11529 2726 277 Schuylkill County 152585 8882 24906 13241 42835 32247 122932 113060 30474 2318 Snyder County 36680 2708 6609 4760 10990 7030 28390 25033 4583 387 Somerset County 78218 5066 14528 6519 22821 16104 60900 55691 13180 1150 Sullivan County 6104 344 1080 593 1561 1267 4907 4355 1259 165 Susquehanna County 40380 2963 7928 3209 11971 8145 30623 28065 6164 600 Tioga County 41126 2733 7707 4938 11170 8439 31944 28037 6139 621 Union County 36176 2397 5941 5931 10648 6724 28765 24654 4535 537 Venango County 59381 3969 11457 4661 17829 12550 45780 41856 8915 845 Warren County 45050 3071 8302 3586 13304 9741 34923 32115 7046 730 Washington County 204584 12031 34123 19235 59837 43696 163915 149025 35662 2834 Wayne County 39944 2725 7332 3291 11685 8173 30997 28425 6738 714 Westmoreland County 370321 22416 60900 31942 110747 81076 296506 272694 63240 5149 Wyoming County 28076 2077 5680 2976 8549 5272 21242 18747 3522 339 York County 339574 24043 58533 32597 112139 67927 266058 242659 44335 4410