{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/zoning/52240/","name":"Zoning for ZIP 52240 — Iowa City (IA), IA","description":"Zoning data for ZIP 52240 (Iowa City (IA), Iowa), sourced from Municipal planning departments.","topic":{"slug":"zoning","label":"Zoning","source":"Municipal planning departments","sourceUrl":"https://zipradar.org/methodology/","refreshCadence":"Annual plus ad-hoc rezonings","summary":"Not on zipradar yet. The plan is the ZIP's main zoning classes in plain English. Until then, the city planning department's official map is the source.","limitations":"Top-25 cities covered at launch. Houston has no zoning laws (special handling). Elsewhere, zipradar links to the planning department's portal."},"place":{"zip":"52240","city":"Iowa City (IA)","state":"IA","stateFull":"Iowa","county":"Johnson County (IA)","countySlug":"johnson-county","geo":{"latitude":41.6611,"longitude":-91.5302}},"stateContext":{"topConcern":"Radon Zone 1, agricultural water nitrates","narrative":"Iowa is one of the highest-radon states in the US — uniformly Zone 1. Agricultural runoff drives EPA SDWIS nitrate violations in small rural systems and even Des Moines Water Works. Tornadoes peak April-June."},"radonZone":null,"airQuality":null,"waterQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-24","canonicalUrl":"https://zipradar.org/topic/zoning/52240/","zipDashboardUrl":"https://zipradar.org/zip/52240/","zipDashboardApiUrl":"https://zipradar.org/api/zip/52240","primarySourceUrl":"https://zipradar.org/methodology/","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/zoning/52240/"}}