Summary of Geographic Summary Units Used in 2000 Census
Counts and Average Populations of Selected Levels

  Counties County Subdivisions Tracts Block Groups Places (Cities) ZIP Codes (ZCTAs)
# Avg Pop # Avg Pop # Avg Pop # Avg Pop # Avg Pop # Avg Pop
U.S. Totals 3,141 89,596 35,414 7,947 65,443 4,300 208,790 1,348 25,150 8,209 31,956 8,805
Division 67 207,799 1,620 8,594 3,220 4,324 11,041 1,261 620 14,006 1,717 8,108
New England
Middle Atlantic 150 264,479 4,173 9,507 9,992 3,970 31,976 1,241 2,956 9,667 3,923 10,112
East North Central 437 103,330 7,789 5,797 11,411 3,957 36,833 1,226 4,228 7,790 5,001 9,029
West North Central 618 31,129 11,738 1,639 5,108 3,766 16,464 1,168 4,684 3,122 4,866 3,953
South Atlantic 590 87,744 3,332 15,537 10,812 4,788 32,980 1,570 3,604 8,960 4,988 10,378
East South Central 364 46,766 1,743 9,766 3,941 4,319 12,648 1,346 1,672 5,916 2,428 7,010
West South Central 470 66,904 3,089 10,180 7,108 4,424 23,008 1,367 3,118 7,698 3,635 8,648
Mountain 280 64,901 1,010 17,992 4,285 4,241 13,213 1,375 1,876 8,195 2,418 7,511
Pacific 165 272,883 920 48,941 9,566 4,707 30,627 1,470 2,392 16,758 2,980 15,106
State 67 66,375 390 11,403 1,081 4,114 3,329 1,336 494 5,659 625 7,114
Alabama
Alaska 27 23,220 36 17,415 158 3,968 533 1,176 349 1,660 241 2,593
Arizona 15 342,042 78 65,777 1,107 4,635 3,570 1,437 250 18,604 364 14,091
Arkansas 75 35,645 1,330 2,010 624 4,284 2,135 1,252 519 3,293 595 4,493
California 58 583,994 387 87,524 7,049 4,805 22,133 1,530 1,081 28,835 1,678 20,182
Colorado 63 68,274 208 20,679 1,062 4,050 3,278 1,312 354 10,046 483 8,905
Connecticut 8 425,696 173 19,685 819 4,158 2,620 1,300 120 16,910 266 12,803
Delaware 3 261,200 27 29,022 197 3,978 502 1,561 75 4,594 65 12,055
District of Columbia 1 572,059 1 572,059 188 3,043 433 1,321 1 572,059 26 22,002
Florida 67 238,543 299 53,453 3,154 5,067 9,112 1,754 888 13,521 927 17,238
Georgia 159 51,487 577 14,188 1,618 5,060 4,788 1,710 596 6,392 707 11,578
Hawaii 5 242,307 44 27,535 286 4,236 646 1,875 131 8,403 89 13,612
Idaho 44 29,408 170 7,611 280 4,621 954 1,356 205 4,203 276 4,683
Illinois 102 121,758 1,710 7,263 2,966 4,187 9,843 1,262 1,313 8,187 1,348 9,213
Indiana 92 66,092 1,011 6,014 1,414 4,300 4,798 1,267 601 6,654 762 7,980
Iowa 99 29,559 1,661 1,762 793 3,690 2,634 1,111 954 2,381 949 3,084
Kansas 105 25,604 1,535 1,751 727 3,698 2,299 1,169 631 3,453 692 3,885
Kentucky 120 33,681 481 8,403 994 4,066 3,157 1,280 467 4,549 766 5,276
Louisiana 64 69,828 597 7,486 1,106 4,041 3,509 1,274 398 7,535 518 8,623
Maine 16 79,683 535 2,383 348 3,664 1,143 1,115 111 5,384 399 3,191
Maryland 24 220,687 293 18,077 1,218 4,349 3,678 1,440 368 11,537 452 11,718
Massachusetts 14 453,507 357 17,785 1,367 4,645 5,053 1,257 235 19,202 501 12,673
Michigan 83 119,740 1,569 6,334 2,757 3,605 8,450 1,176 630 10,134 963 10,320
Minnesota 87 56,546 2,778 1,771 1,303 3,776 4,082 1,205 867 4,543 868 5,667
Mississippi 82 34,691 410 6,938 605 4,702 2,148 1,324 329 4,630 425 6,690
Missouri 115 48,654 1,379 4,057 1,320 4,239 4,540 1,232 972 3,973 1,016 5,507
Montana 56 16,111 191 4,724 270 3,341 874 1,032 275 2,164 349 2,584
Nebraska 93 18,401 1,234 1,387 503 3,402 1,591 1,076 537 2,503 578 2,961
Nevada 17 117,545 72 27,754 487 4,103 1,245 1,605 71 26,068 147 13,563
New Hampshire 10 123,579 260 4,753 273 4,527 874 1,414 60 9,774 227 5,444
New Jersey 21 400,683 571 14,736 1,950 4,315 6,510 1,293 505 11,998 582 14,457
New Mexico 33 55,123 130 13,993 456 3,989 1,413 1,287 234 5,853 352 5,162
New York 62 306,072 1,022 18,568 4,907 3,867 15,079 1,258 1,050 14,620 1,619 11,721
North Carolina 100 80,493 1,055 7,630 1,563 5,150 5,271 1,527 655 6,641 783 10,280
North Dakota 53 12,117 1,790 359 227 2,829 630 1,019 373 1,304 382 1,681
Ohio 88 129,013 1,585 7,163 2,941 3,860 9,354 1,214 1,054 7,602 1,160 9,787
Oklahoma 77 44,814 302 11,426 990 3,486 2,901 1,189 691 3,852 656 5,260
Oregon 36 95,039 211 16,215 755 4,532 2,490 1,374 309 8,303 409 8,361
Pennsylvania 67 183,299 2,580 4,760 3,135 3,917 10,387 1,182 1,401 5,115 1,722 7,132
Rhode Island 5 209,664 40 26,208 234 4,480 821 1,277 27 27,612 70 14,976
South Carolina 46 87,218 296 13,554 867 4,627 2,859 1,403 368 4,992 407 9,857
South Dakota 66 11,437 1,361 555 235 3,212 688 1,097 350 1,545 381 1,981
Tennessee 95 59,887 462 12,314 1,261 4,512 4,014 1,417 382 9,029 612 9,295
Texas 254 82,094 860 24,246 4,388 4,752 14,463 1,442 1,510 11,015 1,866 11,171
Utah 29 77,006 90 24,813 496 4,502 1,481 1,508 289 7,280 278 8,031
Vermont 14 43,488 255 2,388 179 3,401 530 1,149 67 3,176 254 2,397
Virginia 135 52,433 544 13,012 1,541 4,593 4,749 1,491 371 11,772 886 7,989
Washington 39 151,131 242 24,356 1,318 4,472 4,825 1,222 522 8,941 563 10,468
West virginia 55 32,879 240 7,535 466 3,881 1,588 1,139 282 2,695 735 2,460
Wisconsin 72 74,495 1,914 2,802 1,333 4,024 4,388 1,222 630 6,015 768 6,984
Wyoming 23 21,469 71 6,955 127 3,888 398 1,241 198 1,944 169 2,919

Report Producted by the Office of Social and Economic Data Analysis
Under a Contract with the Missouri Census Data Center
Source: Summary File 1, 2000 - Geographic Header Files
Setup to Generate Report is in georef/Tools/sumlevs.sas