RANKING · 1990 CENSUS · 17 SHOWN OF 17

Largest by population, Wyoming cities · 1990

The most populous Wyoming cities as of the 1990 population estimates. This list covers the 17 cities in Wyoming that qualify, ranked against each other statewide.

WyomingAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS –

01Cheyenne, WYWY50,008–

02Casper, WYWY46,742–

03Laramie, WYWY26,687–

04Rock Springs, WYWY18,994–

05Gillette, WYWY17,635–

06Sheridan, WYWY13,900–

07Green River, WYWY12,713–

08Evanston, WYWY10,903–

09Rawlins, WYWY9,379–

10Riverton, WYWY9,202–

11Cody, WYWY7,896–

12Lander, WYWY7,023–

13Torrington, WYWY5,651–

14Powell, WYWY5,292–

15Douglas, WYWY5,076–

16Jackson, WYWY4,452–

17Ranchettes, WYWY4,038–

SHOWING 1–17 OF 17

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS