Wilson County has official FEMA flood maps — check before you build

Wilson County's terrain drains west through the San Antonio River and east through Cibolo and Ecleto creeks. FEMA has issued flood maps for communities here. Low-lying land near these waterways can fall in Special Flood Hazard Areas (SFHA), meaning lenders may require flood insurance.

Before buying or building near any creek or river bottom in Wilson County, look up the parcel on FEMA's Flood Map Service Center at msc.fema.gov. Enter the address to see the flood zone designation. Flood zone status affects insurance cost and what you can build. Maps can be updated, so check the current effective map, not older versions.