Fremont County Courthouse
450 North 2nd Street
Lander, WY  82520
307.332.2405 - Lander
307.857.3682 - Riverton
800.967.2297 - Toll Free

The State of Wyoming requires counties to review “subdivisions” to ensure that proposed building sites are adequate for the purpose, will not harm adjoining properties, and are beneficial additions to the community at large. To achieve these objectives, counties require subdivisions to undergo a public review and meet certain standards, such as for road construction, sewage disposal, water supply, etc.

The Planning Department also administers septic system permits for unincorporated areas of the county and properties inside city limits without access to public sewer services. The goal of the program is to ensure public health and safety by providing ground and surface water protection. Proper septic system installation and maintenance are key factors in reaching that goal. For this reason, a permit is required for all small wastewater (septic) systems that generate less then 2,000 gallons per day of sewage. A permit is also required for replacement or modification of a failed septic system.

Additionally the Planning Department assigns rural addresses to properties for the unincorporated areas of the county and administers the Flood Plain Program for the county.

Phone Numbers 307-332-1077
Addresses 450 N 2nd St.
Courthouse Room 360
Lander, WY 82520
Hours of Operation 8 – 5 Monday thru Friday


Office closed for lunch

Email fremontcoplanning@hotmail.com
Fremont County Government | 450 North 2nd Street | Lander, WY  82520
307.332.2405 | 307.857.3682 | 800.967.2297
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