Sorted by 5 Year % Change
| COUNTY | FIPS | 1997 | 1996 | 1992 | 1 YEAR CHANGE | 5 YEAR CHANGE |
| Douglas | 035 | 37,267 | 30,362 | 16,088 | 22.74% | 6,905 | 131.64% | 21,179 |
| Custer | 027 | 726 | 679 | 423 | 6.92% | 47 | 71.63% | 303 |
| Park | 093 | 1,702 | 1,638 | 1,013 | 3.91% | 64 | 68.02% | 689 |
| Elbert | 039 | 2,168 | 1,997 | 1,298 | 8.56% | 171 | 67.03% | 870 |
| Teller | 119 | 6,296 | 5,809 | 3,900 | 8.38% | 487 | 61.44% | 2,396 |
| Eagle | 037 | 24,729 | 22,612 | 16,052 | 9.36% | 2,117 | 54.06% | 8,677 |
| Huerfano | 055 | 1,980 | 1,742 | 1,287 | 13.66% | 238 | 53.85% | 693 |
| Archuleta | 007 | 2,433 | 2,278 | 1,593 | 6.80% | 155 | 52.73% | 840 |
| Hinsdale | 053 | 261 | 249 | 176 | 4.82% | 12 | 48.30% | 85 |
| San Miguel | 113 | 4,113 | 4,021 | 2,843 | 2.29% | 92 | 44.67% | 1,270 |
| Ouray | 091 | 1,156 | 1,131 | 834 | 2.21% | 25 | 38.61% | 322 |
| Summit | 117 | 17,216 | 16,499 | 12,784 | 4.35% | 717 | 34.67% | 4,432 |
| Arapahoe | 005 | 250,110 | 236,184 | 185,834 | 5.90% | 13,926 | 34.59% | 64,276 |
| Garfield | 045 | 16,111 | 15,487 | 11,987 | 4.03% | 624 | 34.40% | 4,124 |
| Gilpin | 047 | 4,531 | 4,710 | 3,376 | -3.80% | -179 | 34.21% | 1,155 |
| Phillips | 095 | 1,585 | 1,481 | 1,199 | 7.02% | 104 | 32.19% | 386 |
| La Plata | 067 | 19,619 | 19,222 | 14,859 | 2.07% | 397 | 32.03% | 4,760 |
| Gunnison | 051 | 7,065 | 6,765 | 5,352 | 4.43% | 300 | 32.01% | 1,713 |
| Fremont | 043 | 12,187 | 11,695 | 9,253 | 4.21% | 492 | 31.71% | 2,934 |
| Larimer | 069 | 105,079 | 101,795 | 80,156 | 3.23% | 3,284 | 31.09% | 24,923 |
| El Paso | 041 | 212,766 | 203,582 | 162,440 | 4.51% | 9,184 | 30.98% | 50,326 |
| Grand | 049 | 5,896 | 5,724 | 4,536 | 3.00% | 172 | 29.98% | 1,360 |
| Chaffee | 015 | 5,693 | 5,457 | 4,389 | 4.32% | 236 | 29.71% | 1,304 |
| Unclassified | 999 | 14,245 | 14,895 | 10,989 | -4.36% | -650 | 29.63% | 3,256 |
| Montrose | 085 | 11,699 | 11,025 | 9,059 | 6.11% | 674 | 29.14% | 2,640 |
| Yuma | 125 | 3,274 | 3,186 | 2,553 | 2.76% | 88 | 28.24% | 721 |
| Delta | 029 | 6,695 | 6,406 | 5,224 | 4.51% | 289 | 28.16% | 1,471 |
| Alamosa | 003 | 6,988 | 6,748 | 5,454 | 3.56% | 240 | 28.13% | 1,534 |
| Pitkin | 097 | 15,571 | 14,929 | 12,261 | 4.30% | 642 | 27.00% | 3,310 |
| Routt | 107 | 11,383 | 11,107 | 8,972 | 2.48% | 276 | 26.87% | 2,411 |
| Las Animas | 071 | 4,246 | 4,124 | 3,365 | 2.96% | 122 | 26.18% | 881 |
| Mesa | 077 | 45,214 | 43,170 | 36,123 | 4.73% | 2,044 | 25.17% | 9,091 |
| Mineral | 079 | 398 | 363 | 319 | 9.64% | 35 | 24.76% | 79 |
| Prowers | 099 | 5,750 | 5,440 | 4,622 | 5.70% | 310 | 24.41% | 1,128 |
| Statewide | 08 | 1,952,986 | 1,873,725 | 1,579,634 | 4.23% | 79,261 | 23.64% | 373,352 |
| Weld | 123 | 61,043 | 59,085 | 49,670 | 3.31% | 1,958 | 22.90% | 11,373 |
| Morgan | 087 | 10,979 | 10,514 | 8,950 | 4.42% | 465 | 22.67% | 2,029 |
| Adams | 001 | 124,466 | 120,931 | 101,825 | 2.92% | 3,535 | 22.24% | 22,641 |
| Logan | 075 | 7,673 | 7,658 | 6,324 | 0.20% | 15 | 21.33% | 1,349 |
| Pueblo | 101 | 52,456 | 49,908 | 43,241 | 5.11% | 2,548 | 21.31% | 9,215 |
| Baca | 009 | 1,261 | 1,203 | 1,040 | 4.82% | 58 | 21.25% | 221 |
| Montezuma | 083 | 8,345 | 8,352 | 6,888 | -0.08% | -7 | 21.15% | 1,457 |
| Boulder | 013 | 152,793 | 146,180 | 126,827 | 4.52% | 6,613 | 20.47% | 25,966 |
| Clear Creek | 019 | 2,869 | 2,796 | 2,438 | 2.61% | 73 | 17.68% | 431 |
| Sedgwick | 115 | 890 | 840 | 764 | 5.95% | 50 | 16.49% | 126 |
| Jefferson | 059 | 197,517 | 190,403 | 170,976 | 3.74% | 7,114 | 15.52% | 26,541 |
| Bent | 011 | 1,589 | 1,535 | 1,382 | 3.52% | 54 | 14.98% | 207 |
| Saguache | 109 | 1,450 | 1,399 | 1,264 | 3.65% | 51 | 14.72% | 186 |
| Otero | 089 | 7,434 | 7,420 | 6,507 | 0.19% | 14 | 14.25% | 927 |
| Conejos | 021 | 1,489 | 1,486 | 1,304 | 0.20% | 3 | 14.19% | 185 |
| Washington | 121 | 1,227 | 1,210 | 1,098 | 1.40% | 17 | 11.75% | 129 |
| Moffat | 081 | 4,831 | 4,796 | 4,328 | 0.73% | 35 | 11.62% | 503 |
| Denver | 031 | 431,229 | 418,299 | 387,646 | 3.09% | 12,930 | 11.24% | 43,583 |
| Kit Carson | 063 | 2,749 | 2,680 | 2,479 | 2.57% | 69 | 10.89% | 270 |
| Lake | 065 | 2,057 | 2,083 | 1,871 | -1.25% | -26 | 9.94% | 186 |
| Rio Grande | 105 | 4,198 | 4,194 | 3,838 | 0.10% | 4 | 9.38% | 360 |
| Kiowa | 061 | 467 | 446 | 429 | 4.71% | 21 | 8.86% | 38 |
| Lincoln | 073 | 1,879 | 1,829 | 1,788 | 2.73% | 50 | 5.09% | 91 |
| Crowley | 025 | 807 | 815 | 791 | -0.98% | -8 | 2.02% | 16 |
| Cheyenne | 017 | 751 | 705 | 747 | 6.52% | 46 | 0.54% | 4 |
| San Juan | 111 | 242 | 245 | 247 | -1.22% | -3 | -2.02% | -5 |
| Costilla | 023 | 788 | 886 | 816 | -11.06% | -98 | -3.43% | -28 |
| Rio Blanco | 103 | 2,554 | 2,514 | 2,654 | 1.59% | 40 | -3.77% | -100 |
| Dolores | 033 | 350 | 361 | 380 | -3.05% | -11 | -7.89% | -30 |
| Jackson | 057 | 451 | 440 | 509 | 2.50% | 11 | -11.39% | -58 |