All counties in the State of Wyoming.
| Name | Status | Population census 2000-04-01 | Population census 2010-04-01 | Population estimate 2011-07-01 | |
|---|---|---|---|---|---|
| Albany | County | 32,029 | 36,299 | 36,848 | o |
| Big Horn | County | 11,442 | 11,668 | 11,746 | o |
| Campbell | County | 33,705 | 46,133 | 46,590 | o |
| Carbon | County | 15,626 | 15,885 | 15,789 | o |
| Converse | County | 12,046 | 13,833 | 13,738 | o |
| Crook | County | 5,886 | 7,083 | 7,127 | o |
| Fremont | County | 35,805 | 40,123 | 40,575 | o |
| Goshen | County | 12,537 | 13,249 | 13,597 | o |
| Hot Springs | County | 4,877 | 4,812 | 4,808 | o |
| Johnson | County | 7,084 | 8,569 | 8,616 | o |
| Laramie | County | 81,617 | 91,738 | 92,487 | o |
| Lincoln | County | 14,568 | 18,106 | 18,037 | o |
| Natrona | County | 66,541 | 75,450 | 76,356 | o |
| Niobrara | County | 2,410 | 2,484 | 2,489 | o |
| Park | County | 25,788 | 28,205 | 28,439 | o |
| Platte | County | 8,792 | 8,667 | 8,716 | o |
| Sheridan | County | 26,563 | 29,116 | 29,260 | o |
| Sublette | County | 5,913 | 10,247 | 10,118 | o |
| Sweetwater | County | 37,620 | 43,806 | 44,078 | o |
| Teton | County | 18,257 | 21,294 | 21,445 | o |
| Uinta | County | 19,745 | 21,118 | 20,919 | o |
| Washakie | County | 8,292 | 8,533 | 8,469 | o |
| Weston | County | 6,643 | 7,208 | 7,109 | o |
| Wyoming | Federal State | 493,786 | 563,626 | 567,356 |
All incorporated places in the State of Wyoming.
| Name | Status | County | Population census 2000-04-01 | Population census 2010-04-01 | Population estimate 2011-07-01 | |
|---|---|---|---|---|---|---|
| Afton | Town | Lincoln | 1,855 | 1,911 | 1,906 | o |
| Albin | Town | Laramie | 120 | 181 | 183 | o |
| Alpine | Town | Lincoln | 556 | 828 | 826 | o |
| Baggs | Town | Carbon | 348 | 440 | 438 | o |
| Bairoil | Town | Sweetwater | 97 | 106 | 107 | o |
| Bar Nunn | Town | Natrona | 936 | 2,213 | 2,239 | o |
| Basin | Town | Big Horn | 1,246 | 1,285 | 1,295 | o |
| Big Piney | Town | Sublette | 427 | 552 | 545 | o |
| Buffalo | City | Johnson | 3,910 | 4,585 | 4,624 | o |
| Burlington | Town | Big Horn | 250 | 288 | 289 | o |
| Burns | Town | Laramie | 285 | 301 | 304 | o |
| Byron | Town | Big Horn | 557 | 593 | 598 | o |
| Casper | City | Natrona | 49,735 | 55,316 | 55,988 | o |
| Cheyenne | City | Laramie | 53,399 | 59,483 | 60,096 | o |
| Chugwater | Town | Platte | 244 | 212 | 216 | o |
| Clearmont | Town | Sheridan | 115 | 142 | 143 | o |
| Cody | City | Park | 8,900 | 9,520 | 9,653 | o |
| Cokeville | Town | Lincoln | 509 | 535 | 533 | o |
| Cowley | Town | Big Horn | 560 | 655 | 661 | o |
| Dayton | Town | Sheridan | 695 | 757 | 760 | o |
| Deaver | Town | Big Horn | 177 | 178 | 179 | o |
| Diamondville | Town | Lincoln | 716 | 737 | 735 | o |
| Dixon | Town | Carbon | 79 | 97 | 96 | o |
| Douglas | City | Converse | 5,306 | 6,120 | 6,084 | o |
| Dubois | Town | Fremont | 971 | 971 | 982 | o |
| East Thermopolis | Town | Hot Springs | 274 | 254 | 253 | o |
| Edgerton | Town | Natrona | 169 | 195 | 198 | o |
| Elk Mountain | Town | Carbon | 192 | 191 | 190 | o |
| Encampment | Town | Carbon | 443 | 450 | 446 | o |
| Evanston | City | Uinta | 11,532 | 12,359 | 12,282 | o |
| Evansville | Town | Natrona | 2,259 | 2,544 | 2,577 | o |
| Fort Laramie | Town | Goshen | 243 | 230 | 233 | o |
| Frannie | Town | 209 | 157 | 158 | o | |
| Gillette | City | Campbell | 20,349 | 29,085 | 29,389 | o |
| Glendo | Town | Platte | 229 | 205 | 207 | o |
| Glenrock | Town | Converse | 2,244 | 2,576 | 2,562 | o |
| Granger | Town | Sweetwater | 146 | 139 | 140 | o |
| Green River | City | Sweetwater | 11,808 | 12,515 | 12,622 | o |
| Greybull | Town | Big Horn | 1,815 | 1,847 | 1,862 | o |
| Guernsey | Town | Platte | 1,147 | 1,147 | 1,165 | o |
| Hanna | Town | Carbon | 873 | 841 | 835 | o |
| Hartville | Town | Platte | 76 | 62 | 63 | o |
| Hudson | Town | Fremont | 407 | 458 | 463 | o |
| Hulett | Town | Crook | 435 | 383 | 384 | o |
| Jackson | Town | Teton | 8,635 | 9,595 | 9,710 | o |
| Kaycee | Town | Johnson | 249 | 263 | 266 | o |
| Kemmerer | City | Lincoln | 2,653 | 2,656 | 2,651 | o |
| Kirby | Town | Hot Springs | 55 | 92 | 92 | o |
| La Barge | Town | Lincoln | 431 | 551 | 550 | o |
| La Grange | Town | Goshen | 336 | 448 | 452 | o |
| Lander | City | Fremont | 6,928 | 7,487 | 7,571 | o |
| Laramie | City | Albany | 27,402 | 30,816 | 31,312 | o |
| Lingle | Town | Goshen | 510 | 468 | 474 | o |
| Lost Springs | Town | Converse | 1 | 4 | 4 | o |
| Lovell | Town | Big Horn | 2,366 | 2,360 | 2,378 | o |
| Lusk | Town | Niobrara | 1,450 | 1,567 | 1,571 | o |
| Lyman | Town | Uinta | 1,942 | 2,115 | 2,102 | o |
| Manderson | Town | Big Horn | 104 | 114 | 114 | o |
| Manville | Town | Niobrara | 103 | 95 | 95 | o |
| Marbleton | Town | Sublette | 781 | 1,094 | 1,084 | o |
| Medicine Bow | Town | Carbon | 274 | 284 | 283 | o |
| Meeteetse | Town | Park | 351 | 327 | 332 | o |
| Midwest | Town | Natrona | 408 | 404 | 410 | o |
| Mills | Town | Natrona | 3,159 | 3,461 | 3,504 | o |
| Moorcroft | Town | Crook | 825 | 1,009 | 1,013 | o |
| Mountain View | Town | Uinta | 1,168 | 1,286 | 1,279 | o |
| Newcastle | City | Weston | 3,267 | 3,532 | 3,485 | o |
| Opal | Town | Lincoln | 102 | 96 | 97 | o |
| Pavillion | Town | Fremont | 165 | 231 | 233 | o |
| Pine Bluffs | Town | Laramie | 1,153 | 1,129 | 1,140 | o |
| Pine Haven | Town | Crook | 222 | 490 | 492 | o |
| Pinedale | Town | Sublette | 1,406 | 2,030 | 2,009 | o |
| Powell | City | Park | 5,592 | 6,314 | 6,393 | o |
| Ranchester | Town | Sheridan | 701 | 857 | 860 | o |
| Rawlins | City | Carbon | 9,060 | 9,259 | 9,203 | o |
| Riverside | Town | Carbon | 59 | 52 | 52 | o |
| Riverton | City | Fremont | 9,273 | 10,749 | 10,867 | o |
| Rock River | Town | Albany | 235 | 245 | 249 | o |
| Rock Springs | City | Sweetwater | 18,654 | 23,036 | 23,229 | o |
| Rolling Hills | Town | Converse | 456 | 435 | 434 | o |
| Saratoga | Town | Carbon | 1,726 | 1,690 | 1,678 | o |
| Sheridan | City | Sheridan | 15,889 | 17,444 | 17,517 | o |
| Shoshoni | Town | Fremont | 635 | 649 | 658 | o |
| Sinclair | Town | Carbon | 423 | 433 | 431 | o |
| Star Valley Ranch | Town | Lincoln | 652 | 1,503 | 1,501 | o |
| Sundance | Town | Crook | 1,211 | 1,182 | 1,187 | o |
| Superior | Town | Sweetwater | 244 | 336 | 339 | o |
| Ten Sleep | Town | Washakie | 310 | 260 | 258 | o |
| Thayne | Town | Lincoln | 351 | 366 | 365 | o |
| Thermopolis | Town | Hot Springs | 3,172 | 3,009 | 3,001 | o |
| Torrington | City | Goshen | 5,845 | 6,501 | 6,690 | o |
| Upton | Town | Weston | 878 | 1,100 | 1,084 | o |
| Van Tassell | Town | Niobrara | 18 | 15 | 15 | o |
| Wamsutter | Town | Sweetwater | 261 | 451 | 455 | o |
| Wheatland | Town | Platte | 3,548 | 3,627 | 3,680 | o |
| Worland | City | Washakie | 5,334 | 5,487 | 5,458 | o |
| Wright | Town | Campbell | 1,347 | 1,807 | 1,826 | o |
| Yoder | Town | Goshen | 169 | 151 | 153 | o |
Source: US Census Bureau (web).
2012-07-02WWW.CITYPOPULATION.DE