When to engage the Larimer County Addressing Team

If you have any addressing problems, not sure of your address, USPS doesn’t recognize your address, confusing or difficult road names - please reach out to the addressing team for assistance.

Larimer County Readdressing & Road Naming Project

Whether you have received a letter from the County Addressing Team stating your road name needs to change, your private drive needs to be named, or if you have questions or concerns, please visit this page.

Our team only assigns addresses within unincorporated Larimer County. If you need an address for a property within one of the municipalities within Larimer County, please visit these addressing pages:


This process only impacts property/tax parcel address - NOT mailing address. Changes to a property-related mailing address in Larimer County must be made through the Assessors Office using their Assessor's Change of Address Form

 An address is not required prior to submitting a building permit request, an address will be assigned as part of the building permitting process through the Larimer County Building Department

*An address number may be assigned to a vacant platted lot, unplatted tract or parcel, or tract or parcel developed by metes and bounds if requested by the property owner and if the final determination of the driveway access point has been made.

*Any private access driveways that provide access for to more than one residence are required to become a named private access drive (Larimer County street inventory rules), conform to the Larimer County Standards for private local access, and all residence using the access drive will be given a new address based off of the newly named private drive.

The following information available when completing the vacant land address request from

  1. Property owner information: name, phone number and email address.
    • Agent information if applicable - name, phone number, and email address
  2. Property information - Parcel Number, legal description
  3. A sketch of the property to be addressed - A diagram with clear property lines showing the driveway's location clearly indicating the location the driveway intersects with the nearest named road. 
    • If the driveway crosses adjacent properties please verify that you have any necessary access agreements.

Address Request Form - Once the form has been submitted you will receive an email verify the reqeust has been received and placed in the addressing queue to be worked.

Email Addressing Team 

County (1)/Cities (2)/Towns (6)

  • County of Larimer
  • City of Fort Collins
  • City of Loveland
  • Town of Berthoud
  • Town of Estes Park
  • Town of Johnstown
  • Town of Timnath
  • Town of Wellington
  • Town of Windsor

Hospital/Health Services Districts (3)

  • Health District of Northern Larimer County
  • Park Hospital District
  • Thompson Valley Health Services District

State (1)

  • Colorado State University

Fire Authorities (2)

  • Loveland Fire Rescue Authority
  • Poudre Fire Authority

Fire Protection Districts (15)

  • Allenspark Fire Protection District
  • Berthoud Fire Protection District
  • Crystal Lakes Fire Protection District
  • Estes Valley Fire Protection District
  • Front Range Fire Rescue Fire Protection District (f/k/a Johnstown Fire Protection District)
  • Glacier View Fire Protection District
  • Livermore Fire Protection District
  • Loveland Rural Fire Protection District
  • Lyons Fire Protection District
  • Pinewood Springs Fire Protection District
  • Poudre Canyon Fire Protection District
  • Poudre Valley Fire Protection District
  • Red Feather Lakes Fire Protection District
  • Wellington Fire Protection District
  • Windsor-Severance Fire Protection District

Larimer County, Colorado Road Naming and Site Addressing Resolution was adopted by the Board of County Commissioners in December 2004, the last revision to the resolution being in January 2007. This document contains procedures to name streets and create street addresses, ensuring consistency.

Accurate addressing ensures that emergency services, such as police, fire, and ambulance, can locate and respond quickly in an emergency, that visitors to a new area can find their way in a timely fashion, and it minimizes the delivery time for postal and private carriers.

In addition, effective November 1, 2021, Larimer County and multiple agencies signed the Fourth Amended Intergovernmental Agreement For The Establishment Of Larimer Emergency Telephone Authority (LETA). In doing so, each entity also agreed to follow the LETA Street Naming and Addressing Standards Agreement.

You can search street name inventory and read about rules and approved suffixes below.

Contact the Larimer County Addressing Team

Email larimeraddressing@larimer.gov or call 970-498-5022.