{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/flood-zone/60515/","name":"Flood zone for ZIP 60515 — Downers Grove, IL","description":"Flood zone data for ZIP 60515 (Downers Grove, Illinois), 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":"60515","city":"Downers Grove","state":"IL","stateFull":"Illinois","county":"DuPage County","countySlug":"dupage-county","geo":{"latitude":41.7889,"longitude":-88.0119}},"stateContext":{"topConcern":"Lead service lines, flooding (Mississippi/Illinois)","narrative":"Illinois has the highest LCRR lead-service-line replacement obligations in the US (Chicago alone >400,000 LSLs). FEMA AE coverage extends along the Mississippi, Illinois, and Rock rivers. EPA SDWIS shows urban vs. downstate disparity."},"radonZone":null,"airQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-07","canonicalUrl":"https://zipradar.org/topic/flood-zone/60515/","zipDashboardUrl":"https://zipradar.org/zip/60515/","zipDashboardApiUrl":"https://zipradar.org/api/zip/60515/","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/60515/"}}