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Custer County Montana

Welcome to the Official website for Custer County Montana

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Custer County Montana Floodplain and Planning

Environmental Health

Contact Information

Mike Rinaldi – EMAIL
(406) 366-1424

The Environmental Health department in Custer County encompasses Sanitarian, Planning, Floodplain and DEQ Liaison services at this time.

County Services

  • zoning
  • planning
  • flood plain
  • on site wastewater

County and State Department of Environmental Quality

  • subdivision
  • stormwater
  • solid waste
  • junk vehicle

Zoning: Documents & Forms

  • Custer County Zoning Regulations
  • 2021 Zoning Fees Schedule
  • Site Plan Review Application
  • Zoning Site Application – Fillable
  • Sample Site Plan
  • Processing Zone Changes and Conditional Uses
  • How to Apply for a Conditional Use Permit (CUP)
  • What is a Conditional Use Permit?
  • Conditional Use Permit Application

Planning: Documents & Forms

  • Subdivision Regulations
  • DRAFT Montana Model Subdivision Regulations 2020
  • Montana’s Subdivision Surveying Laws & Regulations 19th Edition
  • Planning Fees 2022
  • Pre-Application Meeting Fillable Form
  • Pre-Application Meeting Download & Print Form
  • Application Form Guidance
  • Subdivision Review Fee Calculation Checklist

Onsite Wastewater Systems: Documents & Forms

  • Custer County Wastewater Regulations
  • Wastewater Application
  • Onsite Application – Fillable
  • Subsurface Wastewater Treatment System Certified Installer Report Form
  • Subdivisions On-Site Subsurface Wastewater Treatment Minimum Standards
  • DEQ – Circular 4 – Montana Standards for Subsurface Wastewater Treatment Systems

Food & Consumer Safety: Documents & Forms

Please visit the Montana Department of Public Health and Human Services website for more information about the following list of Food and Consumer Safety requirements for Montana.

  • public accommodations
  • trailer courts
  • food establishments
  • day care
  • tattooing
  • body piercing
  • Cottage Foods
  • farmers market

Sidebar

Official Seal for Custer County, Montana
Since February 16, 1877

All County Departments

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  • Treasurer
  • Weed Management

Resources

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Recent Posts

  • May 2025
  • Custer County Senior Center
  • April 2025
  • Call for Volunteers
  • Muster Creek Siphon on the Lower Canal Rehab
  • March 2025

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Custer County, MT

We are the 10th largest county in the state of Montana.

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