Dataset Groups Activity Stream Showcases FEMA Flood Zones This layer shows FEMA’s Flood Zones for Jefferson County, TX. The data was pulled from FEMA’s Preliminary FEMA Map Products and should be verified prior to final use. Contact Sean Murphy if you have any questions regarding this layer Data and Resources FEMA Flood Zones Explore More information Go to resource FEMA Flood Zones Hydrologic Hydrology Additional Info Field Value Source Version Author Author Email Maintainer Maintainer Email