{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/flood-zone/31561/","name":"Flood zone for ZIP 31561 — Sea Island, GA","description":"Flood zone data for ZIP 31561 (Sea Island, Georgia), sourced from FEMA NFHL.","topic":{"slug":"flood-zone","label":"Flood zone","source":"FEMA NFHL","sourceUrl":"https://www.fema.gov/flood-maps/national-flood-hazard-layer","refreshCadence":"Quarterly LOMA updates","summary":"Pages show the flood zone code, what it means in plain English (1% annual chance zone, 0.2% annual chance zone, or outside mapped hazard), and the base flood elevation where assigned.","limitations":"For an official flood-zone determination (required by lenders), consult the FEMA Map Service Center directly. zipradar shows informational classifications only."},"place":{"zip":"31561","city":"Sea Island","state":"GA","stateFull":"Georgia","county":"Glynn County","countySlug":"glynn-county","geo":{"latitude":31.1826,"longitude":-81.3447}},"stateContext":{"topConcern":"Coastal flood (Savannah/Brunswick), tornadoes","narrative":"Georgia has both Atlantic coastal AE/VE zones and inland tornado/wind exposure. Wildfire risk in southeastern flatwoods. EPA SDWIS compliance varies sharply between urban Atlanta utilities and small rural systems in southwest GA."},"radonZone":null,"airQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-07","canonicalUrl":"https://zipradar.org/topic/flood-zone/31561/","zipDashboardUrl":"https://zipradar.org/zip/31561/","zipDashboardApiUrl":"https://zipradar.org/api/zip/31561/","primarySourceUrl":"https://www.fema.gov/flood-maps/national-flood-hazard-layer","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/flood-zone/31561/"}}