SCLLR

Wind/Seismic Maps

The Building Codes Council has approved the use of the following county maps for the 2021 code cycle based on the 2015 International Residential Code. These maps are intended to be the primary source for defining the appropriate boundaries for wind and seismic design in South Carolina for single- and two-family dwellings. The local building official, at his or her discretion, may also consult the ATC website for further clarification on the location of wind and seismic zones. The ATC website is not meant to supersede the maps approved by the Council, but is intended to provide further clarification as needed to determine the boundary on an approved map, or to determine the wind and seismic zones if a map has not been approved for that particular county.

Below are the current wind and seismic maps for South Carolina.