{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/flood-zone/04101/","name":"Flood zone for ZIP 04101 — Portland, ME","description":"Flood zone data for ZIP 04101 (Portland, Maine), 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":"Not on zipradar yet. The plan is the FEMA flood zone code, what it means in plain English, and the base flood elevation where assigned. Until then, look the address up on FEMA's Flood Map Service Center.","limitations":"For an official flood-zone determination (required by lenders), consult the FEMA Map Service Center directly. zipradar shows informational classifications only."},"place":{"zip":"04101","city":"Portland","state":"ME","stateFull":"Maine","county":"Cumberland County","countySlug":"cumberland-county","geo":{"latitude":43.6591,"longitude":-70.2568}},"stateContext":{"topConcern":"Radon, lead in older housing, coastal flood","narrative":"Maine has Zone 1 radon statewide. Older housing stock carries lead-paint + lead-service-line risk in Portland, Lewiston, Bangor. Coastal AE/VE FEMA zones face Risk Rating 2.0 premium increases."},"radonZone":null,"airQuality":null,"waterQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-24","canonicalUrl":"https://zipradar.org/topic/flood-zone/04101/","zipDashboardUrl":"https://zipradar.org/zip/04101/","zipDashboardApiUrl":"https://zipradar.org/api/zip/04101/","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/04101/"}}