Communities: Know the Risk

Jefferson County

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  • Revised Preliminary Maps Issued

Jefferson County was founded in 1836 and is named for the former U.S. president Thomas Jefferson.

As of 2010, the population of Jefferson County is 252,273.

Jefferson County receives annual rainfall averages of 50 inches. Several historic storms affected the area. Tropical Storm Frances passed over the northern Texas coastline in September of 1998 and Tropical Storm Allison in June of 2001 caused widespread flooding in the area. Rainfall amounts of more than 40 inches were recorded in northwestern Jefferson County during Tropical Storm Allison. The eye of Hurricane Rita passed right over this county in September 2005.

Jefferson County is located on the plains of the Texas Gulf Coast in the southeastern portion of the state. The county is bound on the north by Pine Island Bayou, the Neches River on the northeast and the Sabine Lake and the mouth of the Sabine River on the east. The southern part of the county is largely marsh.

Jefferson County entered the regular National Flood Insurance Program (NFIP) in June 1983.


For more helpful information, look under Resources and Related Links.

For mapping questions, contact the FEMA Mapping Information eXchange (FMIX) – 1-877-336-2627.

For flood insurance questions, call the NFIP Hotline - 1-800-621-3362.(press 2 for insurance)

Coastal Barrier Resources Systems are identified by the U.S. Fish and Wildlife Service (USFWS) and can be viewed here.