Charleston County evacuation zones A, B and C — published boundary text

Annex C to the SC Hurricane Plan (May 2026 edition, checked 2026-09-04) defines Charleston County's three zones verbatim as follows. Zone A: "(1) Areas in and around Edisto Island (2) Areas along the immediate coast to include Seabrook Island, Kiawah Island, Folly Beach, Sullivans Island, Isle of Palms, Dewees Island (3) Areas east of US-17 south to Buck Hall Recreation Area". Zone B: "(1) Areas north of Mount Pleasant between Zone A and US-17 (2) Areas in and around Mount Pleasant, James Island, and Johns Island (3) The southern portion of the Charleston peninsula up to Shipyard Creek". Zone C: "(1) Areas between Highway 17 and the Charleston County line (2) Areas north of Zone B along the I-26 corridor to the Charleston County line (3) Areas in and around West Ashley, behind Edisto Island, Johns Island, and James Island to the Charleston County line". The identical text appears on Charleston County's own evacuation-zones handout PDF (file created 2024-05-09). These are narrative descriptions only; they do not resolve an individual parcel.