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 FEMA Floodplain Maps


As a part of a nationwide Map Modernization program, FEMA has modernized its Flood Insurance Rate Maps (FIRM) and Flood Insurance Studies (FIS) for Williamson County and Travis County. The current FEMA maps became effective September 26, 2008. These maps may periodically be revised through the FEMA revision process.

Within the City of Round Rock, the new FEMA maps did not reflect any new detailed (Zone AE) studies.  All streams within the City limits where re-delineations of effective floodplain boundaries on the updated two (2) foot contour data and showed little change in the floodplain boundaries. However, the maps now show some areas of the City where properties are now in the floodplain that were previously shown to be outside of the floodplain, specifically in approximate (Zone A) studied areas.

Floods of greater magnitude than that associated with the base (1% annual chance) flood elevation (BFE) are possible. Therefore, the City recommends that you seriously consider purchasing flood insurance even if it is not required by your lender, especially if your property is located near a major waterway. Since the City is a participating community in the National Flood Insurance Program (NFIP), anyone in the community is eligible to purchase flood insurance.

Floodplain Information Request

To request Floodplain information within the Round Rock City limits, download the Floodplain Information Request Form. Email the completed form to the Engineering Technician or fax to (512) 218-5536. For additional local floodplain information, call (512) 218-6604 or email floodplain

View the Maps 

To view or print the new Williamson County and Travis County maps that include portions of the Round Rock City limits, please visit the FEMA Map Service Center at the following link: http://msc.fema.gov

For more information about FEMA, floodplains and flood insurance, visit http://www.floodsmart.gov or contact the FEMA Region VI office at (940) 898-5127.

To download the entire FEMA Firm Panels in PDF format, visit the document download page.



City of Round Rock | 221 East Main Street, Round Rock, Texas 78664 | Phone: (512) 218-5400
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