Lafayette County Preliminary Flood Maps
FEMA Releases Updated Preliminary Flood Maps for Lafayette County November 12, 2026

After completing a new engineering study of the Yocona Watershed and Little Tallahatchie Watershed, FEMA has released Preliminary Flood Insurance Rate Maps affecting Lafayette County. The updated maps are expected to go into effect in late 2027.

The study identifies areas within Lafayette County that are subject to flooding. Using updated data and engineering analysis, the new maps establish base flood elevations (BFE), which estimate how high floodwaters may rise during a flood event.

Lafayette County’s current flood maps were established in 2010. With improved science and updated data, some flood boundaries and elevations have changed. BFE changes affect 607 parcels across the county, and FEMA has sent notices to property owners whose properties are affected by the proposed maps.

The maps are expected to enter a statutory 90-day appeal period this fall. During this time, property owners and lessees may appeal proposed flood elevations or boundaries by submitting scientific or technical evidence. Comments may also be submitted about other issues with the preliminary maps.

After any appeals are resolved, FEMA will issue a Letter of Final Determination to Lafayette County. That will begin a six-month compliance period for the county to adopt the updated maps and corresponding floodplain ordinance before the maps take effect.

Because the new maps will not become effective until 2027, property owners and residents have time to understand how the changes may affect them. To see whether your property is included in the proposed changes and review its flood zone and base flood elevation, search the dedicated website by parcel number, street address, road name, or nearby creek.

For questions about your property or the preliminary maps, call Elliott and Britt Engineering at (662) 234-1763.