Apportionment Data
Apportionment
Apportionment is the process of dividing the 435 memberships, or seats, in the House of Representatives among the 50 states based on the population figures collected during the decennial census.
State or Region | 1910 | 1920 | 1930 | 1940 | 1950 | 1960 | 1970 | 1980 | 1990 | 2000 | 2010 |
---|---|---|---|---|---|---|---|---|---|---|---|
United States | |||||||||||
Avg. People per representative | 210,328 | 0 | 280,675 | 301,164 | 344,587 | 410,481 | 469,088 | 519,235 | 572,466 | 646,952 | 710,767 |
Seats lost or gained | 47 | 0 | 27 | 9 | 14 | 21 | 11 | 17 | 19 | 12 | 12 |
Alabama | |||||||||||
Representatives | 10 | 10 | 9 | 9 | 9 | 8 | 7 | 7 | 7 | 7 | 7 |
Avg. People per representative | 213,809 | 0 | 294,027 | 314,773 | 340,194 | 408,343 | 496,555 | 555,723 | 580,373 | 637,304 | 686,140 |
Seats lost or gained | 1 | 0 | -1 | 0 | 0 | -1 | -1 | 0 | 0 | 0 | 0 |
Alaska | |||||||||||
Representatives | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
Avg. People per representative | - | - | - | - | - | 226,167 | 304,067 | 400,481 | 551,947 | 628,933 | 721,523 |
Seats lost or gained | - | - | - | - | - | 1 | 0 | 0 | 0 | 0 | 0 |
Arizona | |||||||||||
Representatives | - | - | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 8 | 9 |
Avg. People per representative | - | - | 389,375 | 249,631 | 374,794 | 434,054 | 446,905 | 543,573 | 612,998 | 642,585 | 712,522 |
Seats lost or gained | - | - | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 2 | 1 |
Arkansas | |||||||||||
Representatives | 7 | 7 | 7 | 7 | 6 | 4 | 4 | 4 | 4 | 4 | 4 |
Avg. People per representative | 224,921 | 0 | 264,921 | 278,484 | 318,252 | 446,568 | 485,576 | 571,378 | 590,560 | 669,933 | 731,557 |
Seats lost or gained | 0 | 0 | 0 | 0 | -1 | -2 | 0 | 0 | 0 | 0 | 0 |
California | |||||||||||
Representatives | 11 | 11 | 20 | 23 | 30 | 38 | 43 | 45 | 52 | 53 | 53 |
Avg. People per representative | 216,051 | 0 | 283,412 | 300,321 | 352,874 | 413,611 | 467,415 | 525,968 | 573,832 | 640,204 | 704,566 |
Seats lost or gained | 3 | 0 | 9 | 3 | 7 | 8 | 5 | 2 | 7 | 1 | 0 |
Colorado | |||||||||||
Representatives | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 6 | 6 | 7 | 7 |
Avg. People per representative | 199,643 | 0 | 258,712 | 280,824 | 331,272 | 438,487 | 445,354 | 481,472 | 551,319 | 615,983 | 720,704 |
Seats lost or gained | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 |
Connecticut | |||||||||||
Representatives | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 |
Avg. People per representative | 222,951 | 0 | 267,816 | 284,874 | 334,547 | 422,539 | 508,449 | 517,929 | 549,278 | 681,907 | 716,326 |
Seats lost or gained | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -1 | 0 |
Delaware | |||||||||||
Representatives | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Avg. People per representative | 202,322 | 0 | 238,380 | 266,505 | 318,085 | 446,292 | 551,928 | 595,225 | 668,696 | 785,068 | 900,877 |
Seats lost or gained | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Florida | |||||||||||
Representatives | 4 | 4 | 5 | 6 | 8 | 12 | 15 | 19 | 23 | 25 | 27 |
Avg. People per representative | 188,155 | 0 | 293,638 | 316,236 | 346,413 | 412,630 | 457,047 | 512,631 | 565,364 | 641,156 | 700,029 |
Seats lost or gained | 1 | 0 | 1 | 1 | 2 | 4 | 3 | 4 | 4 | 2 | 2 |
Georgia | |||||||||||
Representatives | 12 | 12 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 13 | 14 |
Avg. People per representative | 217,427 | 0 | 290,845 | 312,372 | 344,458 | 394,312 | 462,731 | 546,427 | 591,674 | 631,306 | 694,826 |
Seats lost or gained | 1 | 0 | -2 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 |
Hawaii | |||||||||||
Representatives | - | - | - | - | - | 2 | 2 | 2 | 2 | 2 | 2 |
Avg. People per representative | - | - | - | - | - | 316,386 | 392,451 | 482,500 | 557,637 | 608,321 | 683,431 |
Seats lost or gained | - | - | - | - | - | 2 | 0 | 0 | 0 | 0 | 0 |
Idaho | |||||||||||
Representatives | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Avg. People per representative | 161,720 | 0 | 220,768 | 262,437 | 294,319 | 333,596 | 359,961 | 471,968 | 505,993 | 648,637 | 786,750 |
Seats lost or gained | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Illinois | |||||||||||
Representatives | 27 | 27 | 27 | 26 | 25 | 24 | 24 | 22 | 20 | 19 | 18 |
Avg. People per representative | 208,837 | 0 | 282,607 | 303,740 | 348,487 | 420,048 | 466,013 | 519,021 | 573,334 | 654,686 | 714,688 |
Seats lost or gained | 2 | 0 | 0 | -1 | -1 | -1 | 0 | -2 | -2 | -1 | -1 |
Indiana | |||||||||||
Representatives | 13 | 13 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 9 |
Avg. People per representative | 207,760 | 0 | 269,873 | 311,618 | 357,657 | 423,863 | 475,287 | 549,018 | 556,423 | 676,754 | 722,398 |
Seats lost or gained | 0 | 0 | -1 | -1 | 0 | 0 | 0 | -1 | 0 | -1 | 0 |
Iowa | |||||||||||
Representatives | 11 | 11 | 9 | 8 | 8 | 7 | 6 | 6 | 5 | 5 | 4 |
Avg. People per representative | 202,252 | 0 | 274,491 | 317,284 | 327,634 | 393,934 | 474,487 | 485,565 | 557,485 | 586,385 | 763,447 |
Seats lost or gained | 0 | 0 | -2 | -1 | 0 | -1 | -1 | 0 | -1 | 0 | -1 |
Kansas | |||||||||||
Representatives | 8 | 8 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 |
Avg. People per representative | 211,369 | 0 | 268,500 | 300,171 | 317,550 | 435,722 | 453,169 | 472,642 | 621,400 | 673,456 | 715,953 |
Seats lost or gained | 0 | 0 | -1 | -1 | 0 | -1 | 0 | 0 | -1 | 0 | 0 |
Kentucky | |||||||||||
Representatives | 11 | 11 | 9 | 9 | 8 | 7 | 7 | 7 | 6 | 6 | 6 |
Avg. People per representative | 208,173 | 0 | 290,508 | 316,181 | 368,101 | 434,022 | 463,783 | 523,062 | 616,495 | 674,905 | 725,101 |
Seats lost or gained | 0 | 0 | -2 | 0 | -1 | -1 | 0 | 0 | -1 | 0 | 0 |
Louisiana | |||||||||||
Representatives | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 6 |
Avg. People per representative | 207,049 | 0 | 262,699 | 295,485 | 335,440 | 407,128 | 459,001 | 525,497 | 605,459 | 640,039 | 758,994 |
Seats lost or gained | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -1 | 0 | -1 |
Maine | |||||||||||
Representatives | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 |
Avg. People per representative | 185,593 | 0 | 265,806 | 282,409 | 304,591 | 484,633 | 503,160 | 562,330 | 616,612 | 638,866 | 666,537 |
Seats lost or gained | 0 | 0 | -1 | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 0 |
Maryland | |||||||||||
Representatives | 6 | 6 | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 |
Avg. People per representative | 215,891 | 0 | 271,920 | 303,541 | 334,714 | 387,586 | 494,212 | 527,056 | 599,828 | 663,486 | 723,741 |
Seats lost or gained | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
Massachusetts | |||||||||||
Representatives | 16 | 16 | 15 | 14 | 14 | 12 | 12 | 11 | 10 | 10 | 9 |
Avg. People per representative | 210,401 | 0 | 283,307 | 308,337 | 335,037 | 429,048 | 477,223 | 521,549 | 602,905 | 635,557 | 728,849 |
Seats lost or gained | 2 | 0 | -1 | -1 | 0 | -2 | 0 | -1 | -1 | 0 | -1 |
Michigan | |||||||||||
Representatives | 13 | 13 | 17 | 17 | 18 | 19 | 19 | 18 | 16 | 15 | 14 |
Avg. People per representative | 216,167 | 0 | 284,827 | 309,183 | 353,987 | 411,747 | 470,379 | 514,352 | 583,049 | 663,722 | 707,973 |
Seats lost or gained | 1 | 0 | 4 | 0 | 1 | 1 | 0 | -1 | -2 | -1 | -1 |
Minnesota | |||||||||||
Representatives | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 |
Avg. People per representative | 207,438 | 0 | 283,509 | 310,256 | 331,387 | 426,733 | 479,147 | 509,644 | 548,379 | 615,709 | 664,360 |
Seats lost or gained | 1 | 0 | -1 | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 0 |
Mississippi | |||||||||||
Representatives | 8 | 8 | 7 | 7 | 6 | 5 | 5 | 5 | 5 | 4 | 4 |
Avg. People per representative | 224,639 | 0 | 286,879 | 311,971 | 363,152 | 435,628 | 446,770 | 504,128 | 517,289 | 713,232 | 744,560 |
Seats lost or gained | 0 | 0 | -1 | 0 | -1 | -1 | 0 | 0 | 0 | -1 | 0 |
Missouri | |||||||||||
Representatives | 16 | 16 | 13 | 13 | 11 | 10 | 10 | 9 | 9 | 9 | 8 |
Avg. People per representative | 205,833 | 0 | 279,162 | 291,128 | 359,514 | 431,981 | 471,803 | 546,383 | 570,867 | 622,918 | 751,435 |
Seats lost or gained | 0 | 0 | -3 | 0 | -2 | -1 | 0 | -1 | 0 | 0 | -1 |
Montana | |||||||||||
Representatives | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
Avg. People per representative | 183,169 | 0 | 262,365 | 279,728 | 295,512 | 337,384 | 350,787 | 393,345 | 803,655 | 905,316 | 994,416 |
Seats lost or gained | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -1 | 0 | 0 |
Nebraska | |||||||||||
Representatives | 6 | 6 | 5 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 |
Avg. People per representative | 198,702 | 0 | 275,025 | 328,959 | 331,378 | 470,443 | 498,940 | 523,335 | 528,206 | 571,790 | 610,608 |
Seats lost or gained | 0 | 0 | -1 | -1 | 0 | -1 | 0 | 0 | 0 | 0 | 0 |
Nevada | |||||||||||
Representatives | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 4 |
Avg. People per representative | 80,293 | 0 | 86,390 | 110,247 | 160,083 | 285,278 | 492,396 | 399,592 | 603,076 | 667,344 | 677,358 |
Seats lost or gained | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 |
New Hampshire | |||||||||||
Representatives | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Avg. People per representative | 215,286 | 0 | 232,646 | 245,762 | 266,621 | 303,461 | 373,142 | 460,305 | 556,958 | 619,208 | 660,723 |
Seats lost or gained | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
New Jersey | |||||||||||
Representatives | 12 | 12 | 14 | 14 | 14 | 15 | 15 | 14 | 13 | 13 | 12 |
Avg. People per representative | 211,431 | 0 | 288,666 | 297,155 | 345,381 | 404,452 | 480,536 | 526,011 | 596,049 | 648,027 | 733,958 |
Seats lost or gained | 2 | 0 | 2 | 0 | 0 | 1 | 0 | -1 | -1 | 0 | -1 |
New Mexico | |||||||||||
Representatives | - | - | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 |
Avg. People per representative | - | - | 395,982 | 265,909 | 340,594 | 475,512 | 513,332 | 433,323 | 507,260 | 607,940 | 689,091 |
Seats lost or gained | - | - | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
New York | |||||||||||
Representatives | 43 | 43 | 45 | 45 | 43 | 41 | 39 | 34 | 31 | 29 | 27 |
Avg. People per representative | 211,836 | 0 | 279,733 | 299,536 | 344,888 | 409,324 | 470,207 | 516,391 | 582,081 | 655,344 | 719,298 |
Seats lost or gained | 6 | 0 | 2 | 0 | -2 | -2 | -2 | -5 | -3 | -2 | -2 |
North Carolina | |||||||||||
Representatives | 10 | 10 | 11 | 12 | 12 | 11 | 11 | 11 | 12 | 13 | 13 |
Avg. People per representative | 220,629 | 0 | 287,934 | 297,635 | 338,494 | 414,196 | 465,930 | 534,039 | 554,803 | 620,590 | 735,829 |
Seats lost or gained | 0 | 0 | 1 | 1 | 0 | -1 | 0 | 0 | 1 | 1 | 0 |
North Dakota | |||||||||||
Representatives | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
Avg. People per representative | 191,468 | 0 | 336,670 | 320,968 | 309,818 | 316,223 | 624,181 | 652,695 | 641,364 | 643,756 | 675,905 |
Seats lost or gained | 1 | 0 | -1 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 0 |
Ohio | |||||||||||
Representatives | 22 | 22 | 24 | 23 | 23 | 24 | 23 | 21 | 19 | 18 | 16 |
Avg. People per representative | 216,687 | 0 | 276,943 | 300,331 | 345,506 | 404,433 | 466,530 | 514,163 | 573,017 | 631,919 | 723,031 |
Seats lost or gained | 1 | 0 | 2 | -1 | 0 | 1 | -1 | -2 | -2 | -1 | -2 |
Oklahoma | |||||||||||
Representatives | 8 | 8 | 9 | 8 | 6 | 6 | 6 | 6 | 6 | 5 | 5 |
Avg. People per representative | 207,144 | 0 | 264,691 | 292,054 | 372,225 | 388,047 | 430,914 | 504,211 | 526,267 | 691,764 | 752,976 |
Seats lost or gained | 8 | 0 | 1 | -1 | -2 | 0 | 0 | 0 | 0 | -1 | 0 |
Oregon | |||||||||||
Representatives | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 |
Avg. People per representative | 224,255 | 0 | 316,793 | 272,421 | 380,335 | 442,172 | 527,703 | 526,533 | 570,747 | 685,709 | 769,721 |
Seats lost or gained | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
Pennsylvania | |||||||||||
Representatives | 36 | 36 | 34 | 33 | 30 | 27 | 25 | 23 | 21 | 19 | 18 |
Avg. People per representative | 212,920 | 0 | 283,274 | 300,005 | 349,934 | 419,236 | 475,373 | 515,945 | 567,843 | 647,404 | 707,495 |
Seats lost or gained | 4 | 0 | -2 | -1 | -3 | -3 | -2 | -2 | -2 | -2 | -1 |
Rhode Island | |||||||||||
Representatives | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Avg. People per representative | 180,870 | 0 | 343,749 | 356,673 | 395,948 | 429,744 | 478,899 | 473,577 | 502,992 | 524,831 | 527,624 |
Seats lost or gained | 1 | 0 | -1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
South Carolina | |||||||||||
Representatives | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 |
Avg. People per representative | 216,486 | 0 | 289,793 | 316,634 | 352,838 | 397,099 | 436,220 | 519,868 | 584,285 | 670,844 | 663,711 |
Seats lost or gained | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
South Dakota | |||||||||||
Representatives | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |
Avg. People per representative | 191,892 | 0 | 336,503 | 321,481 | 326,370 | 340,257 | 336,624 | 690,178 | 699,999 | 756,874 | 819,761 |
Seats lost or gained | 1 | 0 | -1 | 0 | 0 | 0 | 0 | -1 | 0 | 0 | 0 |
Tennessee | |||||||||||
Representatives | 10 | 10 | 9 | 10 | 9 | 9 | 8 | 9 | 9 | 9 | 9 |
Avg. People per representative | 218,479 | 0 | 290,722 | 291,584 | 365,746 | 396,343 | 495,133 | 510,083 | 544,071 | 633,337 | 708,381 |
Seats lost or gained | 0 | 0 | -1 | 1 | -1 | 0 | -1 | 1 | 0 | 0 | 0 |
Texas | |||||||||||
Representatives | 18 | 18 | 21 | 21 | 22 | 23 | 24 | 27 | 30 | 32 | 36 |
Avg. People per representative | 216,475 | 0 | 277,362 | 305,468 | 350,509 | 416,508 | 470,783 | 526,977 | 568,660 | 653,250 | 701,901 |
Seats lost or gained | 2 | 0 | 3 | 0 | 1 | 1 | 1 | 3 | 3 | 2 | 4 |
Utah | |||||||||||
Representatives | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 |
Avg. People per representative | 185,932 | 0 | 252,871 | 275,155 | 344,431 | 445,314 | 533,905 | 487,012 | 575,928 | 745,571 | 692,691 |
Seats lost or gained | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |
Vermont | |||||||||||
Representatives | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Avg. People per representative | 177,978 | 0 | 359,611 | 359,231 | 377,747 | 389,881 | 448,327 | 511,456 | 564,964 | 609,890 | 630,337 |
Seats lost or gained | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Virginia | |||||||||||
Representatives | 10 | 10 | 9 | 9 | 10 | 10 | 10 | 10 | 11 | 11 | 11 |
Avg. People per representative | 206,161 | 0 | 269,092 | 297,530 | 331,868 | 396,695 | 469,074 | 534,628 | 565,143 | 645,518 | 730,703 |
Seats lost or gained | 0 | 0 | -1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
Washington | |||||||||||
Representatives | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 8 | 9 | 9 | 10 |
Avg. People per representative | 228,027 | 0 | 258,737 | 289,365 | 339,852 | 407,602 | 491,927 | 516,270 | 543,105 | 656,520 | 675,337 |
Seats lost or gained | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 |
West Virginia | |||||||||||
Representatives | 6 | 6 | 6 | 6 | 6 | 5 | 4 | 4 | 3 | 3 | 3 |
Avg. People per representative | 203,520 | 0 | 288,200 | 316,996 | 334,259 | 372,084 | 440,833 | 487,411 | 600,542 | 604,359 | 619,938 |
Seats lost or gained | 1 | 0 | 0 | 0 | 0 | -1 | -1 | 0 | -1 | 0 | 0 |
Wisconsin | |||||||||||
Representatives | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 |
Avg. People per representative | 212,078 | 0 | 293,172 | 313,759 | 343,458 | 395,178 | 494,113 | 522,815 | 545,194 | 671,401 | 712,279 |
Seats lost or gained | 0 | 0 | -1 | 0 | 0 | 0 | -1 | 0 | 0 | -1 | 0 |
Wyoming | |||||||||||
Representatives | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Avg. People per representative | 144,658 | 0 | 223,630 | 250,742 | 290,529 | 330,066 | 335,719 | 470,816 | 455,975 | 495,304 | 568,300 |
Seats lost or gained | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |