Addressing

The Addressing Office provides an efficient and uniform location identification system for the provision of emergency services. The Office is responsible for assigning and reassigning physical property addresses in Lewis and Clark County and the incorporated cities of Helena and East Helena.

Addressing Hub Site

Visit our Addressing Hub Site for an overview of responsibilities, frequently asked questions, and applications. (Coming Soon)

Application Forms

County Address Online Form (Coming Soon)

Helena Address Online Form (Coming Soon)

East Helena Address Online Form (Coming Soon)

Address Plaque Online Form (Coming Soon)

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Use these forms if you prefer to print and submit via mail or email (Fillable PDF):

County Address(PDF, 47KB)

Helena Address(PDF, 154KB)

East Helena Address(PDF, 25KB)

Address Plaque(PDF, 49KB)

Resolutions and Conventions

Site Address and Road Naming Conventions(PDF, 409KB)

Master Street Address Guide(XLSX, 162KB) (MSAG)
Spreadsheet of road names in Lewis & Clark County.

Approved/Reserved Road Names(XLSX, 24KB)
Spreadsheet of approved/reserved roads that have yet to be final platted.

Contact Information

City/County Addressing Office
316 N. Park Ave. Room 207
Helena, MT. 59623

Phone: 406-447-8367
Fax: 406-447-8386
Email

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