| Area | 7/1/2008 | 7/1/2007 | 7/1/2006 | 7/1/2005 | 7/1/2004 | 7/1/2003 | 7/1/2002 | 7/1/2001 | 7/1/2000 | Census 2000 |
| Colorado | 4,939,456 | 4,842,770 | 4,751,474 | 4,662,734 | 4,600,050 | 4,548,339 | 4,503,156 | 4,431,918 | 4,327,788 | 4,301,261 |
|---|---|---|---|---|---|---|---|---|---|---|
| Aguilar town | 570 | 571 | 569 | 566 | 564 | 575 | 583 | 583 | 594 | 593 |
| Akron town | 1,651 | 1,687 | 1,712 | 1,729 | 1,750 | 1,755 | 1,781 | 1,660 | 1,715 | 1,711 |
| Alamosa city | 8,745 | 8,689 | 8,690 | 8,684 | 8,659 | 8,572 | 8,574 | 8,436 | 8,428 | 7,960 |
| Alma town | 172 | 175 | 176 | 179 | 182 | 183 | 182 | 179 | 179 | 179 |
| Antonito town | 788 | 791 | 803 | 818 | 825 | 818 | 858 | 861 | 872 | 873 |
| Arriba town | 209 | 210 | 213 | 219 | 225 | 230 | 232 | 233 | 243 | 244 |
| Arvada city | 107,361 | 106,060 | 104,262 | 103,176 | 101,991 | 102,388 | 101,928 | 102,242 | 102,285 | 102,153 |
| Aspen city | 5,902 | 5,783 | 5,782 | 5,814 | 5,814 | 5,879 | 5,926 | 5,940 | 5,951 | 5,914 |
| Ault town | 1,442 | 1,414 | 1,404 | 1,407 | 1,398 | 1,411 | 1,416 | 1,419 | 1,426 | 1,432 |
| Aurora city | 319,057 | 310,451 | 302,240 | 296,159 | 290,881 | 286,638 | 284,156 | 282,303 | 277,814 | 276,393 |
| Avon town | 6,578 | 6,503 | 6,443 | 6,419 | 6,402 | 6,372 | 5,772 | 5,757 | 5,669 | 5,561 |
| Basalt town | 3,244 | 3,168 | 3,112 | 3,073 | 3,038 | 2,976 | 2,949 | 2,857 | 2,750 | 2,681 |
| Bayfield town | 2,024 | 1,961 | 1,824 | 1,678 | 1,640 | 1,652 | 1,635 | 1,625 | 1,595 | 1,549 |
| Bennett town | 2,595 | 2,567 | 2,558 | 2,563 | 2,490 | 2,330 | 2,269 | 2,150 | 2,080 | 2,021 |
| Berthoud town | 5,429 | 5,320 | 5,243 | 5,154 | 5,150 | 5,178 | 5,240 | 5,260 | 5,019 | 4,839 |
| Bethune town | 209 | 209 | 211 | 215 | 215 | 221 | 227 | 225 | 225 | 225 |
| Black Hawk city | 105 | 105 | 107 | 107 | 108 | 110 | 113 | 115 | 118 | 118 |
| Blanca town | 342 | 351 | 359 | 365 | 381 | 379 | 381 | 382 | 392 | 391 |
| Blue River town | 954 | 917 | 877 | 827 | 798 | 768 | 753 | 691 | 706 | 685 |
| Bonanza town | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 14 |
| Boone town | 335 | 333 | 331 | 330 | 331 | 333 | 333 | 329 | 324 | 323 |
| Boulder city | 94,171 | 93,106 | 92,342 | 92,176 | 92,790 | 93,183 | 94,149 | 94,859 | 94,700 | 94,673 |
| Bow Mar town | 811 | 806 | 798 | 794 | 791 | 797 | 808 | 826 | 836 | 847 |
| Branson town | 77 | 78 | 77 | 77 | 77 | 77 | 77 | 76 | 77 | 77 |
| Breckenridge town | 3,420 | 3,341 | 3,250 | 3,154 | 3,114 | 3,090 | 3,068 | 2,993 | 2,834 | 2,408 |
| Brighton city | 31,380 | 30,591 | 29,464 | 27,935 | 26,816 | 25,860 | 23,701 | 22,442 | 21,293 | 20,905 |
| Brookside town | 212 | 213 | 214 | 216 | 216 | 219 | 220 | 220 | 219 | 219 |
| Broomfield city | 54,858 | 53,620 | 51,454 | 48,539 | 46,626 | 45,127 | 42,545 | 41,450 | 39,558 | 38,272 |
| Brush city | 5,332 | 5,324 | 5,349 | 5,218 | 5,137 | 5,143 | 5,135 | 5,114 | 5,126 | 5,117 |
| Buena Vista town | 2,134 | 2,124 | 2,120 | 2,143 | 2,159 | 2,167 | 2,195 | 2,180 | 2,198 | 2,195 |
| Burlington city | 3,875 | 3,903 | 3,926 | 3,928 | 3,954 | 3,857 | 3,895 | 3,693 | 3,662 | 3,678 |
| Ca±on City city | 15,889 | 15,828 | 15,744 | 15,628 | 15,585 | 15,646 | 15,697 | 15,654 | 15,569 | 15,431 |
| Calhan town | 868 | 865 | 872 | 879 | 893 | 905 | 913 | 920 | 897 | 896 |
| Campo town | 127 | 128 | 130 | 132 | 135 | 136 | 143 | 148 | 149 | 150 |
| Carbondale town | 6,266 | 6,094 | 5,957 | 5,774 | 5,651 | 5,615 | 5,537 | 5,475 | 5,279 | 5,196 |
| Castle Rock town | 44,369 | 42,267 | 39,006 | 35,251 | 32,297 | 29,675 | 25,708 | 23,118 | 20,850 | 20,224 |
| Cedaredge town | 2,252 | 2,196 | 2,169 | 2,119 | 2,077 | 2,018 | 1,971 | 1,905 | 1,866 | 1,854 |
| Centennial city | 99,680 | 98,720 | 97,644 | 97,591 | 97,669 | 97,930 | 98,991 | 101,252 | 102,424 | 0 |
| Center town | 2,389 | 2,356 | 2,388 | 2,423 | 2,475 | 2,448 | 2,436 | 2,383 | 2,395 | 2,392 |
| Central City city | 566 | 544 | 513 | 490 | 482 | 492 | 500 | 506 | 517 | 515 |
| Cheraw town | 201 | 202 | 206 | 209 | 210 | 208 | 208 | 211 | 213 | 211 |
| Cherry Hills Village city | 6,355 | 6,262 | 6,150 | 6,103 | 6,061 | 6,035 | 6,048 | 6,082 | 5,989 | 5,958 |
| Cheyenne Wells town | 786 | 790 | 824 | 841 | 868 | 902 | 958 | 987 | 1,004 | 1,010 |
| Coal Creek town | 355 | 350 | 353 | 354 | 357 | 357 | 347 | 330 | 308 | 303 |
| Cokedale town | 134 | 134 | 133 | 133 | 132 | 134 | 136 | 136 | 139 | 139 |
| Collbran town | 426 | 418 | 408 | 400 | 398 | 396 | 393 | 389 | 388 | 388 |
| Colorado Springs city | 380,307 | 375,725 | 374,614 | 370,878 | 369,938 | 369,460 | 371,033 | 371,106 | 361,103 | 360,890 |
| Columbine Valley town | 1,320 | 1,292 | 1,259 | 1,225 | 1,168 | 1,143 | 1,131 | 1,133 | 1,144 | 1,132 |
| Commerce City city | 42,473 | 40,794 | 38,406 | 34,015 | 29,422 | 26,383 | 24,024 | 22,028 | 21,248 | 20,991 |
| Cortez city | 8,609 | 8,504 | 8,352 | 8,163 | 8,153 | 8,166 | 8,080 | 7,958 | 7,999 | 7,977 |
| Craig city | 9,241 | 9,135 | 9,006 | 8,931 | 9,119 | 9,080 | 9,155 | 9,099 | 9,169 | 9,189 |
| Crawford town | 392 | 387 | 384 | 382 | 383 | 380 | 377 | 370 | 366 | 366 |
| Creede town | 421 | 421 | 409 | 408 | 417 | 399 | 385 | 370 | 379 | 377 |
| Crested Butte town | 1,651 | 1,631 | 1,609 | 1,583 | 1,546 | 1,520 | 1,536 | 1,540 | 1,533 | 1,529 |
| Crestone town | 107 | 104 | 99 | 97 | 97 | 92 | 88 | 86 | 87 | 73 |
| Cripple Creek city | 1,012 | 1,031 | 1,032 | 1,035 | 1,047 | 1,073 | 1,095 | 1,104 | 1,112 | 1,115 |
| Crook town | 124 | 125 | 126 | 127 | 129 | 131 | 132 | 131 | 129 | 128 |
| Crowley town | 165 | 168 | 170 | 174 | 178 | 177 | 178 | 179 | 187 | 187 |
| Dacono city | 4,052 | 3,934 | 3,738 | 3,511 | 3,376 | 3,273 | 3,269 | 3,200 | 3,072 | 3,015 |
| De Beque town | 522 | 511 | 500 | 491 | 490 | 488 | 484 | 477 | 473 | 451 |
| Deer Trail town | 577 | 574 | 572 | 571 | 574 | 577 | 583 | 593 | 596 | 598 |
| Del Norte town | 1,603 | 1,613 | 1,656 | 1,705 | 1,739 | 1,766 | 1,784 | 1,808 | 1,874 | 1,705 |
| Delta city | 9,020 | 8,685 | 8,395 | 8,221 | 8,180 | 8,134 | 8,099 | 7,943 | 7,844 | 6,400 |
| Denver city | 598,707 | 582,860 | 572,121 | 563,353 | 559,871 | 559,192 | 561,477 | 564,528 | 556,067 | 554,636 |
| Dillon town | 808 | 801 | 793 | 787 | 789 | 800 | 794 | 800 | 803 | 802 |
| Dinosaur town | 335 | 334 | 330 | 329 | 335 | 333 | 336 | 317 | 318 | 319 |
| Dolores town | 920 | 903 | 891 | 862 | 863 | 865 | 852 | 854 | 862 | 857 |
| Dove Creek town | 745 | 717 | 713 | 683 | 682 | 685 | 703 | 702 | 707 | 698 |
| Durango city | 16,416 | 16,006 | 15,902 | 15,650 | 15,385 | 14,975 | 14,970 | 14,630 | 14,508 | 13,922 |
| Eads town | 606 | 610 | 627 | 635 | 639 | 667 | 682 | 707 | 743 | 747 |
| Eagle town | 5,897 | 5,479 | 4,966 | 4,324 | 3,765 | 3,475 | 3,348 | 3,108 | 3,062 | 3,032 |
| Eaton town | 4,213 | 4,137 | 4,058 | 3,942 | 3,827 | 3,714 | 3,512 | 2,984 | 2,792 | 2,690 |
| Eckley town | 265 | 264 | 266 | 267 | 270 | 277 | 277 | 278 | 278 | 278 |
| Edgewater city | 5,136 | 5,115 | 5,131 | 5,169 | 5,242 | 5,324 | 5,419 | 5,494 | 5,459 | 5,445 |
| Elizabeth town | 1,436 | 1,444 | 1,481 | 1,505 | 1,514 | 1,517 | 1,523 | 1,498 | 1,459 | 1,434 |
| Empire town | 324 | 326 | 327 | 332 | 335 | 347 | 358 | 357 | 354 | 355 |
| Englewood city | 32,669 | 32,470 | 32,237 | 32,282 | 32,393 | 32,572 | 32,914 | 32,619 | 31,956 | 31,727 |
| Erie town | 16,432 | 15,638 | 14,165 | 12,347 | 10,102 | 8,958 | 8,427 | 7,929 | 6,676 | 6,291 |
| Estes Park town | 6,432 | 6,257 | 6,121 | 5,918 | 5,881 | 5,757 | 5,718 | 5,689 | 5,545 | 5,413 |
| Evans city | 18,842 | 18,014 | 17,715 | 17,177 | 16,151 | 15,031 | 13,588 | 11,856 | 10,417 | 9,514 |
| Fairplay town | 658 | 662 | 658 | 662 | 665 | 665 | 661 | 647 | 630 | 610 |
| Federal Heights city | 11,732 | 11,619 | 11,623 | 11,672 | 11,725 | 11,862 | 12,062 | 12,101 | 12,072 | 12,065 |
| Firestone town | 8,117 | 7,629 | 7,063 | 6,440 | 5,828 | 5,151 | 4,345 | 3,262 | 2,270 | 1,908 |
| Flagler town | 567 | 571 | 574 | 583 | 591 | 608 | 626 | 625 | 614 | 612 |
| Fleming town | 434 | 433 | 437 | 439 | 448 | 450 | 447 | 441 | 429 | 426 |
| Florence city | 3,625 | 3,615 | 3,605 | 3,599 | 3,619 | 3,674 | 3,715 | 3,690 | 3,688 | 3,653 |
| Fort Collins city | 136,509 | 133,737 | 131,842 | 129,952 | 128,623 | 127,248 | 125,702 | 123,201 | 119,957 | 118,652 |
| Fort Lupton city | 7,620 | 7,510 | 7,415 | 7,390 | 7,401 | 7,433 | 7,476 | 7,443 | 7,208 | 6,787 |
| Fort Morgan city | 10,539 | 10,553 | 10,586 | 10,678 | 10,817 | 10,899 | 10,948 | 10,937 | 11,035 | 11,034 |
| Fountain city | 19,669 | 19,552 | 19,374 | 19,081 | 18,807 | 17,677 | 16,932 | 16,177 | 15,470 | 15,197 |
| Fowler town | 1,094 | 1,099 | 1,114 | 1,129 | 1,139 | 1,153 | 1,162 | 1,187 | 1,208 | 1,206 |
| Foxfield town | 925 | 899 | 881 | 864 | 847 | 829 | 806 | 745 | 726 | 746 |
| Fraser town | 927 | 890 | 895 | 892 | 910 | 909 | 915 | 908 | 916 | 910 |
| Frederick town | 8,127 | 7,760 | 7,330 | 6,569 | 6,028 | 5,324 | 4,684 | 3,863 | 2,790 | 2,467 |
| Frisco town | 2,696 | 2,635 | 2,549 | 2,471 | 2,467 | 2,479 | 2,437 | 2,423 | 2,433 | 2,443 |
| Fruita city | 7,418 | 7,271 | 7,097 | 6,953 | 6,914 | 6,868 | 6,820 | 6,735 | 6,713 | 6,478 |
| Garden City town | 337 | 333 | 330 | 332 | 334 | 338 | 344 | 346 | 350 | 357 |
| Genoa town | 180 | 181 | 183 | 189 | 194 | 198 | 201 | 201 | 210 | 211 |
| Georgetown town | 1,027 | 1,034 | 1,035 | 1,055 | 1,062 | 1,092 | 1,107 | 1,096 | 1,093 | 1,088 |
| Gilcrest town | 1,151 | 1,138 | 1,128 | 1,135 | 1,143 | 1,154 | 1,177 | 1,154 | 1,158 | 1,162 |
| Glendale city | 4,798 | 4,766 | 4,731 | 4,740 | 4,753 | 4,772 | 4,820 | 4,482 | 4,535 | 4,547 |
| Glenwood Springs city | 9,053 | 8,900 | 8,666 | 8,475 | 8,377 | 8,322 | 8,246 | 8,079 | 7,853 | 7,736 |
| Golden city | 17,321 | 17,194 | 17,214 | 17,292 | 17,423 | 17,446 | 17,267 | 17,265 | 17,205 | 17,159 |
| Granada town | 580 | 580 | 594 | 601 | 603 | 617 | 628 | 631 | 638 | 640 |
| Granby town | 1,662 | 1,660 | 1,669 | 1,662 | 1,691 | 1,689 | 1,700 | 1,686 | 1,696 | 1,525 |
| Grand Junction city | 49,688 | 48,700 | 47,526 | 46,569 | 46,330 | 46,049 | 45,776 | 45,335 | 45,362 | 41,986 |
| Grand Lake town | 433 | 433 | 436 | 434 | 443 | 443 | 447 | 443 | 446 | 447 |
| Greeley city | 91,492 | 89,914 | 88,569 | 87,055 | 85,478 | 84,293 | 82,688 | 80,479 | 78,460 | 76,930 |
| Green Mountain Falls town | 803 | 795 | 793 | 786 | 785 | 784 | 788 | 789 | 773 | 773 |
| Greenwood Village city | 14,230 | 13,958 | 13,446 | 13,099 | 12,971 | 12,994 | 13,015 | 12,630 | 11,663 | 11,035 |
| Grover town | 154 | 152 | 152 | 153 | 153 | 153 | 156 | 155 | 153 | 153 |
| Gunnison city | 5,461 | 5,395 | 5,333 | 5,271 | 5,321 | 5,412 | 5,471 | 5,415 | 5,403 | 5,409 |
| Gypsum town | 6,052 | 5,791 | 5,364 | 5,031 | 4,853 | 4,610 | 4,538 | 4,168 | 3,887 | 3,654 |
| Hartman town | 102 | 102 | 105 | 107 | 108 | 108 | 109 | 109 | 111 | 111 |
| Haswell town | 70 | 71 | 73 | 74 | 74 | 76 | 77 | 80 | 84 | 84 |
| Haxtun town | 964 | 965 | 974 | 979 | 984 | 974 | 995 | 979 | 977 | 982 |
| Hayden town | 1,579 | 1,562 | 1,541 | 1,539 | 1,564 | 1,575 | 1,571 | 1,586 | 1,631 | 1,634 |
| Hillrose town | 270 | 272 | 272 | 270 | 270 | 269 | 266 | 260 | 256 | 254 |
| Holly town | 961 | 939 | 959 | 981 | 992 | 1,014 | 1,028 | 1,033 | 1,045 | 1,048 |
| Holyoke city | 2,223 | 2,215 | 2,237 | 2,255 | 2,264 | 2,230 | 2,273 | 2,254 | 2,248 | 2,261 |
| Hooper town | 124 | 124 | 125 | 127 | 127 | 124 | 125 | 124 | 123 | 123 |
| Hot Sulphur Springs town | 512 | 513 | 517 | 515 | 526 | 526 | 530 | 525 | 528 | 521 |
| Hotchkiss town | 1,084 | 1,069 | 1,066 | 1,064 | 1,064 | 1,045 | 1,034 | 1,011 | 1,008 | 968 |
| Hudson town | 1,617 | 1,596 | 1,582 | 1,584 | 1,596 | 1,595 | 1,625 | 1,604 | 1,583 | 1,565 |
| Hugo town | 742 | 746 | 757 | 779 | 802 | 833 | 846 | 848 | 880 | 885 |
| Idaho Springs city | 1,736 | 1,751 | 1,755 | 1,793 | 1,816 | 1,886 | 1,936 | 1,936 | 1,935 | 1,889 |
| Ignacio town | 767 | 772 | 783 | 796 | 806 | 819 | 828 | 826 | 823 | 669 |
| Iliff town | 216 | 218 | 220 | 216 | 215 | 218 | 219 | 218 | 214 | 213 |
| Jamestown town | 213 | 210 | 209 | 208 | 210 | 212 | 215 | 218 | 217 | 205 |
| Johnstown town | 9,309 | 8,770 | 8,206 | 7,258 | 6,457 | 5,758 | 5,176 | 4,777 | 4,430 | 3,827 |
| Julesburg town | 1,252 | 1,240 | 1,286 | 1,322 | 1,343 | 1,402 | 1,431 | 1,421 | 1,471 | 1,467 |
| Keenesburg town | 1,177 | 1,159 | 1,144 | 1,143 | 1,143 | 1,135 | 1,150 | 972 | 891 | 855 |
| Kersey town | 1,460 | 1,438 | 1,412 | 1,402 | 1,380 | 1,384 | 1,397 | 1,397 | 1,403 | 1,389 |
| Kim town | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 64 | 65 | 65 |
| Kiowa town | 596 | 594 | 612 | 604 | 609 | 606 | 614 | 617 | 593 | 581 |
| Kit Carson town | 202 | 202 | 211 | 217 | 223 | 227 | 239 | 247 | 252 | 253 |
| Kremmling town | 1,528 | 1,530 | 1,543 | 1,541 | 1,574 | 1,575 | 1,586 | 1,570 | 1,577 | 1,578 |
| La Jara town | 792 | 787 | 794 | 802 | 812 | 821 | 866 | 872 | 885 | 877 |
| La Junta city | 7,046 | 7,013 | 7,077 | 7,161 | 7,242 | 7,314 | 7,361 | 7,474 | 7,555 | 7,568 |
| La Salle town | 1,986 | 1,944 | 1,911 | 1,886 | 1,824 | 1,793 | 1,829 | 1,838 | 1,855 | 1,849 |
| La Veta town | 882 | 853 | 856 | 856 | 864 | 884 | 900 | 898 | 917 | 924 |
| Lafayette city | 25,065 | 24,759 | 24,421 | 24,007 | 23,925 | 23,718 | 23,836 | 23,777 | 23,326 | 23,197 |
| Lake City town | 385 | 389 | 383 | 369 | 378 | 364 | 375 | 385 | 375 | 375 |
| Lakeside town | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 |
| Lakewood city | 140,989 | 139,964 | 139,300 | 139,575 | 140,713 | 141,913 | 143,231 | 143,972 | 144,394 | 144,126 |
| Lamar city | 7,953 | 7,947 | 8,113 | 8,282 | 8,358 | 8,524 | 8,647 | 8,709 | 8,841 | 8,869 |
| Larkspur town | 328 | 319 | 310 | 301 | 292 | 280 | 270 | 259 | 239 | 234 |
| Las Animas city | 2,345 | 2,329 | 2,451 | 2,483 | 2,523 | 2,545 | 2,608 | 2,643 | 2,740 | 2,758 |
| Leadville city | 2,743 | 2,704 | 2,642 | 2,642 | 2,680 | 2,702 | 2,732 | 2,766 | 2,813 | 2,821 |
| Limon town | 1,750 | 1,759 | 1,781 | 1,831 | 1,885 | 1,960 | 1,984 | 1,989 | 2,061 | 2,071 |
| Littleton city | 40,777 | 40,513 | 40,165 | 40,227 | 40,317 | 40,296 | 40,239 | 40,394 | 40,443 | 40,340 |
| Lochbuie town | 4,800 | 4,464 | 3,923 | 3,564 | 3,380 | 3,191 | 2,921 | 2,540 | 2,160 | 2,049 |
| Log Lane Village town | 973 | 978 | 988 | 1,004 | 1,020 | 1,032 | 1,036 | 1,026 | 1,019 | 1,006 |
| Lone Tree city | 9,348 | 9,123 | 8,850 | 8,454 | 7,771 | 7,562 | 7,453 | 6,944 | 6,930 | 4,873 |
| Longmont city | 85,928 | 84,583 | 83,488 | 82,414 | 81,354 | 79,922 | 78,942 | 75,855 | 72,229 | 71,093 |
| Louisville city | 19,133 | 18,722 | 18,594 | 18,461 | 18,632 | 18,520 | 18,813 | 19,056 | 19,022 | 18,937 |
| Loveland city | 65,587 | 64,239 | 62,204 | 60,486 | 59,044 | 57,521 | 56,158 | 54,346 | 51,870 | 50,608 |
| Lyons town | 2,035 | 1,906 | 1,773 | 1,633 | 1,613 | 1,613 | 1,624 | 1,634 | 1,596 | 1,585 |
| Manassa town | 945 | 950 | 966 | 985 | 995 | 987 | 1,034 | 1,035 | 1,042 | 1,042 |
| Mancos town | 1,261 | 1,237 | 1,212 | 1,171 | 1,157 | 1,144 | 1,126 | 1,116 | 1,121 | 1,119 |
| Manitou Springs city | 5,161 | 5,103 | 5,092 | 5,052 | 5,044 | 5,042 | 5,072 | 5,082 | 4,979 | 4,980 |
| Manzanola town | 472 | 475 | 482 | 489 | 496 | 502 | 506 | 516 | 523 | 525 |
| Marble town | 104 | 104 | 104 | 104 | 104 | 103 | 103 | 104 | 105 | 105 |
| Mead town | 3,408 | 3,144 | 2,757 | 2,579 | 2,256 | 2,093 | 2,120 | 2,075 | 1,981 | 2,017 |
| Meeker town | 2,387 | 2,316 | 2,246 | 2,172 | 2,211 | 2,186 | 2,205 | 2,174 | 2,236 | 2,242 |
| Merino town | 270 | 272 | 275 | 276 | 282 | 277 | 271 | 257 | 240 | 246 |
| Milliken town | 6,159 | 6,008 | 5,761 | 5,545 | 5,191 | 4,657 | 3,965 | 3,436 | 3,045 | 2,888 |
| Minturn town | 1,185 | 1,167 | 1,143 | 1,109 | 1,113 | 1,114 | 1,127 | 1,108 | 1,078 | 1,068 |
| Moffat town | 126 | 121 | 119 | 118 | 120 | 117 | 117 | 114 | 114 | 114 |
| Monte Vista city | 4,009 | 4,011 | 4,089 | 4,187 | 4,304 | 4,356 | 4,384 | 4,442 | 4,579 | 4,529 |
| Montezuma town | 43 | 43 | 43 | 42 | 43 | 43 | 43 | 44 | 42 | 42 |
| Montrose city | 17,989 | 17,272 | 16,297 | 15,451 | 14,769 | 14,307 | 13,942 | 13,391 | 13,012 | 12,344 |
| Monument town | 2,588 | 2,554 | 2,544 | 2,516 | 2,504 | 2,495 | 2,497 | 2,488 | 1,979 | 1,971 |
| Morrison town | 415 | 412 | 411 | 413 | 415 | 417 | 422 | 426 | 429 | 430 |
| Mount Crested Butte town | 848 | 831 | 792 | 774 | 760 | 757 | 763 | 762 | 719 | 707 |
| Mountain View town | 520 | 518 | 520 | 525 | 533 | 542 | 552 | 560 | 568 | 569 |
| Mountain Village town | 1,370 | 1,317 | 1,206 | 1,143 | 1,115 | 1,114 | 1,129 | 1,073 | 992 | 978 |
| Naturita town | 655 | 652 | 650 | 657 | 660 | 662 | 659 | 647 | 637 | 635 |
| Nederland town | 1,369 | 1,354 | 1,343 | 1,343 | 1,356 | 1,365 | 1,385 | 1,400 | 1,397 | 1,394 |
| New Castle town | 3,796 | 3,536 | 3,261 | 2,988 | 2,790 | 2,691 | 2,497 | 2,289 | 2,056 | 1,984 |
| Northglenn city | 33,697 | 33,379 | 33,228 | 33,333 | 33,525 | 33,845 | 34,302 | 33,286 | 32,392 | 31,575 |
| Norwood town | 462 | 467 | 457 | 468 | 468 | 471 | 476 | 460 | 446 | 438 |
| Nucla town | 732 | 728 | 725 | 732 | 731 | 736 | 739 | 739 | 736 | 734 |
| Nunn town | 541 | 534 | 519 | 515 | 515 | 508 | 497 | 482 | 472 | 471 |
| Oak Creek town | 813 | 805 | 795 | 794 | 808 | 815 | 813 | 821 | 845 | 849 |
| Olathe town | 1,742 | 1,732 | 1,702 | 1,688 | 1,672 | 1,662 | 1,644 | 1,627 | 1,601 | 1,573 |
| Olney Springs town | 344 | 350 | 356 | 364 | 373 | 371 | 373 | 375 | 390 | 389 |
| Ophir town | 132 | 134 | 126 | 120 | 117 | 118 | 119 | 116 | 113 | 113 |
| Orchard City town | 3,203 | 3,132 | 3,074 | 3,017 | 3,010 | 2,991 | 2,969 | 2,901 | 2,890 | 2,880 |
| Ordway town | 1,098 | 1,107 | 1,123 | 1,143 | 1,175 | 1,169 | 1,187 | 1,196 | 1,249 | 1,248 |
| Otis town | 470 | 483 | 494 | 501 | 504 | 516 | 521 | 519 | 535 | 534 |
| Ouray city | 932 | 903 | 877 | 859 | 845 | 822 | 816 | 813 | 817 | 813 |
| Ovid town | 291 | 288 | 300 | 309 | 312 | 320 | 324 | 319 | 330 | 330 |
| Pagosa Springs town | 1,744 | 1,712 | 1,654 | 1,602 | 1,584 | 1,590 | 1,601 | 1,587 | 1,589 | 1,591 |
| Palisade town | 2,840 | 2,787 | 2,724 | 2,671 | 2,658 | 2,642 | 2,625 | 2,593 | 2,584 | 2,579 |
| Palmer Lake town | 2,326 | 2,297 | 2,288 | 2,265 | 2,255 | 2,248 | 2,252 | 2,243 | 2,182 | 2,179 |
| Paoli town | 41 | 41 | 41 | 42 | 42 | 42 | 43 | 42 | 42 | 42 |
| Paonia town | 1,633 | 1,606 | 1,590 | 1,584 | 1,594 | 1,593 | 1,589 | 1,561 | 1,528 | 1,497 |
| Parachute town | 1,290 | 1,252 | 1,175 | 1,082 | 1,056 | 1,050 | 1,039 | 1,014 | 1,010 | 1,006 |
| Parker town | 43,767 | 42,584 | 40,749 | 37,953 | 36,518 | 34,345 | 32,230 | 29,019 | 24,740 | 23,558 |
| Peetz town | 244 | 245 | 222 | 223 | 228 | 230 | 232 | 231 | 228 | 227 |
| Pierce town | 877 | 865 | 861 | 867 | 873 | 880 | 891 | 890 | 888 | 884 |
| Pitkin town | 117 | 116 | 117 | 117 | 118 | 117 | 120 | 121 | 124 | 124 |
| Platteville town | 2,634 | 2,605 | 2,592 | 2,574 | 2,558 | 2,546 | 2,533 | 2,409 | 2,381 | 2,370 |
| Poncha Springs town | 456 | 454 | 453 | 459 | 463 | 464 | 470 | 465 | 467 | 466 |
| Pritchett town | 116 | 117 | 118 | 121 | 123 | 124 | 131 | 135 | 136 | 137 |
| Pueblo city | 104,951 | 104,029 | 102,844 | 102,350 | 102,488 | 103,050 | 103,321 | 102,681 | 102,130 | 102,121 |
| Ramah town | 120 | 120 | 119 | 120 | 122 | 122 | 123 | 122 | 118 | 117 |
| Rangely town | 2,138 | 2,102 | 2,045 | 1,997 | 2,047 | 2,039 | 2,064 | 2,055 | 2,098 | 2,096 |
| Raymer town | 91 | 91 | 90 | 91 | 91 | 90 | 91 | 91 | 91 | 91 |
| Red Cliff town | 323 | 319 | 320 | 319 | 314 | 309 | 308 | 305 | 301 | 289 |
| Rico town | 258 | 245 | 239 | 222 | 218 | 217 | 216 | 210 | 206 | 205 |
| Ridgway town | 806 | 781 | 758 | 762 | 761 | 747 | 754 | 745 | 747 | 713 |
| Rifle city | 9,202 | 8,771 | 8,357 | 7,957 | 7,605 | 7,453 | 7,324 | 7,051 | 6,888 | 6,784 |
| Rockvale town | 436 | 432 | 436 | 431 | 413 | 417 | 425 | 430 | 434 | 426 |
| Rocky Ford city | 3,950 | 3,968 | 4,021 | 4,063 | 4,112 | 4,101 | 4,132 | 4,212 | 4,271 | 4,286 |
| Romeo town | 342 | 344 | 350 | 357 | 361 | 358 | 375 | 375 | 376 | 375 |
| Rye town | 201 | 201 | 202 | 203 | 204 | 203 | 203 | 203 | 202 | 202 |
| Saguache town | 581 | 574 | 581 | 588 | 600 | 591 | 588 | 576 | 579 | 578 |
| Salida city | 5,396 | 5,378 | 5,376 | 5,442 | 5,490 | 5,515 | 5,588 | 5,550 | 5,587 | 5,504 |
| San Luis town | 642 | 658 | 673 | 683 | 712 | 709 | 713 | 718 | 739 | 739 |
| Sanford town | 740 | 744 | 757 | 771 | 779 | 772 | 810 | 811 | 817 | 817 |
| Sawpit town | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 25 | 25 | 25 |
| Sedgwick town | 163 | 161 | 168 | 171 | 175 | 183 | 186 | 184 | 191 | 191 |
| Seibert town | 165 | 167 | 168 | 171 | 175 | 181 | 186 | 185 | 181 | 180 |
| Severance town | 3,010 | 2,839 | 2,490 | 1,902 | 1,528 | 1,164 | 882 | 704 | 651 | 597 |
| Sheridan city | 5,412 | 5,387 | 5,363 | 5,385 | 5,403 | 5,421 | 5,450 | 5,542 | 5,538 | 5,600 |
| Sheridan Lake town | 56 | 56 | 58 | 59 | 59 | 61 | 61 | 63 | 66 | 66 |
| Silt town | 2,667 | 2,531 | 2,380 | 2,235 | 2,137 | 2,084 | 2,051 | 1,909 | 1,778 | 1,740 |
| Silver Cliff town | 578 | 584 | 575 | 578 | 573 | 572 | 527 | 521 | 512 | 512 |
| Silver Plume town | 184 | 185 | 185 | 189 | 192 | 200 | 203 | 203 | 202 | 203 |
| Silverthorne town | 3,980 | 3,895 | 3,797 | 3,674 | 3,643 | 3,649 | 3,555 | 3,476 | 3,231 | 3,196 |
| Silverton town | 524 | 534 | 544 | 537 | 552 | 544 | 540 | 539 | 532 | 531 |
| Simla town | 685 | 690 | 703 | 715 | 725 | 707 | 690 | 691 | 667 | 663 |
| Snowmass Village town | 1,911 | 1,822 | 1,753 | 1,764 | 1,769 | 1,795 | 1,815 | 1,802 | 1,807 | 1,822 |
| South Fork town | 533 | 535 | 549 | 564 | 575 | 571 | 572 | 578 | 602 | 604 |
| Springfield town | 1,291 | 1,300 | 1,315 | 1,337 | 1,369 | 1,402 | 1,488 | 1,539 | 1,555 | 1,562 |
| Starkville town | 128 | 128 | 128 | 128 | 127 | 127 | 128 | 127 | 129 | 128 |
| Steamboat Springs city | 9,592 | 9,476 | 9,336 | 9,306 | 9,441 | 9,501 | 9,472 | 9,588 | 9,893 | 9,815 |
| Sterling city | 12,800 | 12,881 | 12,818 | 12,825 | 13,005 | 13,140 | 13,095 | 13,221 | 12,806 | 11,360 |
| Stratton town | 606 | 611 | 615 | 619 | 633 | 650 | 664 | 656 | 665 | 669 |
| Sugar City town | 242 | 247 | 251 | 256 | 264 | 263 | 265 | 267 | 279 | 279 |
| Superior town | 10,549 | 10,428 | 10,364 | 10,371 | 10,487 | 10,422 | 10,204 | 10,089 | 9,234 | 9,011 |
| Swink town | 653 | 656 | 665 | 674 | 677 | 682 | 679 | 689 | 695 | 696 |
| Telluride town | 2,361 | 2,352 | 2,295 | 2,305 | 2,303 | 2,324 | 2,352 | 2,286 | 2,222 | 2,221 |
| Thornton city | 113,429 | 110,303 | 107,234 | 104,109 | 100,891 | 97,172 | 93,355 | 88,102 | 83,221 | 82,384 |
| Timnath town | 284 | 279 | 277 | 277 | 280 | 283 | 286 | 288 | 288 | 223 |
| Trinidad city | 9,125 | 9,066 | 8,989 | 8,905 | 8,920 | 9,009 | 9,054 | 8,988 | 9,125 | 9,078 |
| Two Buttes town | 57 | 58 | 58 | 60 | 61 | 61 | 64 | 66 | 67 | 67 |
| Vail town | 4,768 | 4,673 | 4,624 | 4,590 | 4,594 | 4,590 | 4,641 | 4,653 | 4,638 | 4,531 |
| Victor city | 406 | 410 | 408 | 407 | 411 | 422 | 432 | 435 | 443 | 445 |
| Vilas town | 94 | 95 | 96 | 98 | 100 | 100 | 106 | 109 | 110 | 110 |
| Vona town | 86 | 87 | 88 | 90 | 91 | 92 | 94 | 93 | 94 | 95 |
| Walden town | 586 | 603 | 617 | 635 | 658 | 679 | 693 | 699 | 732 | 734 |
| Walsenburg city | 3,830 | 3,809 | 3,830 | 3,830 | 3,854 | 3,943 | 4,032 | 4,044 | 4,148 | 4,182 |
| Walsh town | 637 | 642 | 650 | 662 | 666 | 672 | 702 | 717 | 714 | 723 |
| Ward town | 168 | 167 | 166 | 167 | 169 | 171 | 174 | 169 | 169 | 169 |
| Wellington town | 5,052 | 4,821 | 4,201 | 3,517 | 2,818 | 2,661 | 2,683 | 2,695 | 2,676 | 2,672 |
| Westcliffe town | 455 | 459 | 451 | 459 | 452 | 459 | 461 | 449 | 422 | 417 |
| Westminster city | 107,056 | 105,828 | 104,889 | 104,545 | 104,074 | 103,919 | 103,710 | 102,700 | 101,396 | 100,940 |
| Wheat Ridge city | 30,894 | 30,746 | 30,807 | 30,995 | 31,229 | 31,577 | 32,089 | 32,537 | 32,864 | 32,913 |
| Wiggins town | 945 | 948 | 937 | 949 | 950 | 929 | 871 | 864 | 856 | 838 |
| Wiley town | 446 | 445 | 456 | 466 | 468 | 469 | 473 | 475 | 482 | 483 |
| Williamsburg town | 758 | 756 | 742 | 740 | 735 | 747 | 739 | 723 | 716 | 714 |
| Windsor town | 18,058 | 17,256 | 15,930 | 14,811 | 13,859 | 13,197 | 12,566 | 11,454 | 10,353 | 9,896 |
| Winter Park town | 857 | 817 | 710 | 696 | 705 | 704 | 710 | 707 | 674 | 662 |
| Woodland Park city | 6,501 | 6,563 | 6,509 | 6,486 | 6,495 | 6,582 | 6,637 | 6,624 | 6,601 | 6,515 |
| Wray city | 2,109 | 2,101 | 2,103 | 2,100 | 2,115 | 2,164 | 2,160 | 2,185 | 2,188 | 2,187 |
| Yampa town | 425 | 420 | 415 | 415 | 422 | 425 | 424 | 428 | 441 | 443 |
| Yuma city | 3,263 | 3,249 | 3,245 | 3,244 | 3,269 | 3,339 | 3,249 | 3,274 | 3,282 | 3,285 |
Source: Population Division, U.S. Census Bureau