Wyoming Department of Transportation
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County license plate prefixes

County License Number Prefixes

 
Wyoming license plate numbers begin with a prefix number that designates the county in which the vehicle is registered. Below are the county designations, and the town in which each county treasurer's office is located.
    
License #
County
County Seat
 
 
 
1
Natrona
Casper
2
Laramie
Cheyenne
3
Sheridan
Sheridan
4
Sweetwater
Green River
5
Albany
Laramie
6
Carbon
Rawlins
7
Goshen
Torrington
8
Platte
Wheatland
9
Big Horn
Basin
10
Fremont
Lander
11
Park
Cody
12
Lincoln
Kemmerer
13
Converse
Douglas
14
Niobrara
Lusk
15
Hot Springs
Thermopolis
16
Johnson
Buffalo
17
Campbell
Gillette
18
Crook
Sundance
19
Uinta
Evanston
20
Washakie
Worland
21
Weston
Newcastle
22
Teton
Jackson
23
Sublette
Pinedale

 


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