Proposed Larimer County Flood Maps Reflect Changes to Local Flood Risk

Release Date Release Number
Release Date:
May 17, 2022

DENVER – Updates to Larimer County, Colorado’s flood insurance rate maps are nearing completion. The new maps will provide Larimer County with more accurate flood risk information that can help local officials and residents make informed decisions about reducing flood risks and purchasing flood insurance.

The mapping project is a joint effort between Larimer County, the Colorado Water Conservation Board, and FEMA. It is part of a nationwide effort led by FEMA to increase local knowledge of flood risks and support actions to address and reduce those risks.

Officials encourage residents and business owners to review the proposed flood insurance rate maps to learn about local flood risks, potential future flood insurance requirements, and any concerns or questions about the information provided.

Before the new flood insurance rate maps become effective, there is a 90-day appeal period during which local residents and business owners can provide additional data for consideration before the maps are final. This appeal period starts on May 18, 2022, and ends on August 16, 2022. Appeal packages should address scientific or technical mistakes in the maps, and must include supporting data or engineering documentation.

For further details on this process, visit To view preliminary mapping, visit the Colorado Hazard Mapping Website (, or contact your local floodplain administrator. Preliminary mapping also may be viewed on FEMA’s Map Service Center (

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Last updated May 17, 2022