Flood Maps

Federal Emergency Management Agency Floodplain Maps

Kalamazoo County and the City of Portage last adopted Flood Insurance Rate Maps (FIRM) in 2010. These maps are used by permit officials, builders and developers, lenders, realtors, insurance agents, and citizens to determine flood risk, develop mitigation measures, and encourage wise and responsible risk management decision-making for development within the 100 year floodplain.

<< 2022 UPDATE >>  Federal Emergency Management Agency Floodplain Maps 

FEMA recently provided preliminary copies of the revised FIRM and Flood Insurance Study (FIS) for Kalamazoo County and has published a notice of proposed flood hazard determinations for Kalamazoo County in the Kalamazoo Gazette. These proposed flood hazard determinations will become the basis for the floodplain management measures that the City of Portage will adopt to participate in the National Flood Insurance Program. However, before these proposed maps are formally approved and adopted, community officials and citizens have an opportunity to appeal the proposed flood hazard information as presented on the proposed Preliminary FIRM during a 90-day appeal period which ends on October 26, 2022. To view the 2010 Adopted Floodplain Map and 2022 Proposed Floodplain Map, click on the following links:


West Fork of Portage Creek Area

Portage Creek Area

Sugarloaf Drain / Sugar Loaf Lake Area

Channel between Austin Lake/Long Lake 



Questions should be transmitted directly to FEMA:

If you have any questions regarding the proposed flood hazard determinations, revised FIRM-panels, or revised FIS report , please call the FEMA Mapping and Insurance eXchange (FMIX), toll free, at 1-877-FEMA-MAP (1-877-336-2627) or e-mail the FMIX staff at FEMA at­ FMIX@fema.dhs.gov. In addition, questions about technical documentation required for an appeal can be sent to the FMIX staff at FEMA at­ FMIX@fema.dhs.gov or the FEMA Region 5 office at (312) 408-5500. Finally, additional information about FEMA’s appeal process can be found here.


Appeals or Comments should be transmitted directly to City of Portage:

If you wish to appeal the findings as shown on the proposed FIRM, please present any supporting technical data/studies to the City of Portage, and the City of Portage will submit an appeal on your behalf along with any other appeals by other interested parties to the FEMA region 5 office. All appeals must be submitted electronically to AppealFEMA@Portagemi.gov by October 12, 2022, in order to meet the Kalamazoo County deadline for submission to FEMA.

Interactive City of Portage Map 

Click on the interactive city floodplains map HERE to find out if your City of Portage property is within a FEMA-designated floodplain area. Kalamazoo County residents who live and/or own property outside of the City of Portage should contact the jurisdiction that the property is located in or Kalamazoo County Planning Department for information on maps depicting floodplain areas throughout the remainder of the county.

Flood Insurance Study

A flood insurance study for Kalamazoo County was also adopted and became effective on February 17, 2010. For more information please view the study, which was the basis for the floodplain maps and has an effect on flood insurance rates for county property owners. Due to the City of Portage being an accredited partner with the federal National Floodplain Insurance Program, property owners are eligible for lower flood insurance if their property is located in a FEMA designated floodplain area. 

Letters of Map Change, Revisions, & Amendments

Over the years, some Portage property owners may have received a Letter of Map Change (LOMC), Letter of Map Amendment (LOMA), or Letter of Map Revision (LOMR) providing verification that although their property had been removed from floodplain status by FEMA, the change was not reflected in current maps. 

As part of the process to institute new floodplain maps for Kalamazoo County, FEMA has reaffirmed which local properties are no longer considered to be located in floodplains. If your property is deemed outside of a floodplain, FEMA has sent a new LOMC, LOMA, or LOMR letter to your property shortly after the new maps were approved.

Community Development maintains records of all LOMAs issued within the City of Portage.  Floodplain related questions can be directed to Community Development at (269) 329-4477.