| Rank | City | 2002 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Cheyenne | 53,717 | 0.6% |
| 2 | Casper | 49,817 | 0.2% |
| 3 | Laramie | 27,485 | 0.7% |
| 4 | Gillette | 20,831 | 1.7% |
| 5 | Rock Springs | 18,117 | -2.5% |
| 6 | Sheridan | 15,899 | – |
| 7 | Green River | 11,450 | -2.6% |
| 8 | Evanston | 11,276 | -1.7% |
| 9 | Riverton | 9,221 | -0.6% |
| 10 | Cody | 8,821 | -0.8% |
| 11 | Jackson | 8,753 | 0.8% |
| 12 | Rawlins | 8,669 | -3.9% |
| 13 | Lander | 6,886 | -0.6% |
| 14 | Torrington | 5,763 | -1.4% |
| 15 | Powell | 5,460 | -2.2% |
| 16 | Douglas | 5,278 | -0.9% |
| 17 | Worland | 5,139 | -3.2% |
| 18 | Buffalo | 3,956 | 0.8% |
| 19 | Wheatland | 3,519 | -0.1% |
| 20 | Mills | 3,275 | 3.0% |
| 21 | Newcastle | 3,191 | -2.2% |
| 22 | Thermopolis | 3,085 | -2.4% |
| 23 | Kemmerer | 2,584 | -2.3% |
| 24 | Lovell | 2,310 | -1.9% |
| 25 | Evansville | 2,276 | 0.7% |
| 26 | Glenrock | 2,222 | -1.3% |
| 27 | Lyman | 1,904 | -1.5% |
| 28 | Afton | 1,820 | -1.8% |
| 29 | Greybull | 1,773 | -1.8% |
| 30 | Saratoga | 1,707 | -0.8% |
| 31 | Pinedale | 1,387 | -1.6% |
| 32 | Lusk | 1,386 | -3.6% |
| 33 | Wright | 1,376 | 1.4% |
| 34 | Basin | 1,224 | -1.4% |
| 35 | Sundance | 1,176 | -2.9% |
| 36 | Pine Bluffs | 1,165 | 0.9% |
| 37 | Mountain View | 1,142 | -1.7% |
| 38 | Guernsey | 1,139 | – |
| 39 | Dubois | 970 | -0.2% |
| 40 | Bar Nunn | 944 | 0.7% |
| 41 | Hanna | 860 | -1.1% |
| 42 | Upton | 850 | -3.0% |
| 43 | Moorcroft | 806 | -2.5% |
| 44 | Marbleton | 773 | -1.3% |
| 45 | Ranchester | 706 | 0.6% |
| 46 | Diamondville | 704 | -1.5% |
| 47 | Dayton | 694 | -0.1% |
| 48 | Star Valley Ranch | 637 | -2.2% |
| 49 | Shoshoni | 631 | -0.6% |
| 50 | Alpine | 577 | 2.7% |
| 51 | Cowley | 560 | – |
| 52 | Byron | 551 | -0.7% |
| 53 | Lingle | 505 | -1.0% |
| 54 | Cokeville | 496 | -2.4% |
| 55 | Bear River | 468 | -1.5% |
| 56 | Rolling Hills | 452 | -1.3% |
| 57 | Encampment | 435 | -1.4% |
| 58 | Hulett | 425 | -2.5% |
| 59 | La Barge | 423 | -1.6% |
| 60 | Big Piney | 423 | -1.2% |
| 61 | Sinclair | 413 | -1.9% |
| 62 | Midwest | 408 | – |
| 63 | Hudson | 405 | -0.5% |
| 64 | Baggs | 352 | 1.1% |
| 65 | Meeteetse | 348 | -0.9% |
| 66 | Thayne | 347 | -1.1% |
| 67 | La Grange | 334 | -0.6% |
| 68 | Ten Sleep | 318 | 1.9% |
| 69 | Burns | 289 | 1.0% |
| 70 | Medicine Bow | 269 | -1.5% |
| 71 | East Thermopolis | 267 | -2.2% |
| 72 | Wamsutter | 255 | -1.9% |
| 73 | Kaycee | 252 | 0.8% |
| 74 | Burlington | 246 | -1.2% |
| 75 | Chugwater | 241 | -0.4% |
| 76 | Fort Laramie | 240 | -1.2% |
| 77 | Rock River | 239 | 1.7% |
| 78 | Superior | 236 | -2.9% |
| 79 | Glendo | 228 | – |
| 80 | Pine Haven | 224 | – |
| 81 | Frannie | 206 | -1.0% |
| 82 | Elk Mountain | 188 | -1.6% |
| 83 | Deaver | 174 | -1.1% |
| 84 | Edgerton | 169 | – |
| 85 | Yoder | 167 | -1.2% |
| 86 | Pavillion | 166 | 0.6% |
| 87 | Granger | 142 | -2.7% |
| 88 | Albin | 121 | 0.8% |
| 89 | Clearmont | 115 | – |
| 90 | Manderson | 102 | -1.9% |
| 91 | Manville | 101 | -1.0% |
| 92 | Opal | 100 | -2.0% |
| 93 | Bairoil | 94 | -3.1% |
| 94 | Dixon | 78 | -1.3% |
| 95 | Hartville | 75 | – |
| 96 | Riverside | 58 | -1.7% |
| 97 | Kirby | 54 | -1.8% |
| 98 | Van Tassell | 18 | – |
| 99 | Lost Springs | 1 | – |
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