{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/deed-activity/57101/","name":"Deed activity for ZIP 57101 — Sioux Falls, SD","description":"Deed activity data for ZIP 57101 (Sioux Falls, South Dakota), sourced from County recorders.","topic":{"slug":"deed-activity","label":"Deed activity","source":"County recorders","sourceUrl":"https://zipradar.org/methodology/","refreshCadence":"Daily filings ingestion","summary":"Pages show the count of deeds filed in the ZIP over the last 30/90/365 days. Homeowner names and signatures are never cached; aggregation is to ZIP counts only.","limitations":"Top-50 metros covered at launch. Many smaller counties require subscription or paid access; zipradar links to the recorder portal without caching personal data."},"place":{"zip":"57101","city":"Sioux Falls","state":"SD","stateFull":"South Dakota","county":"Minnehaha County","countySlug":"minnehaha-county","geo":{"latitude":43.546,"longitude":-96.7313}},"stateContext":{"topConcern":"Radon Zone 1, agricultural water, tornadoes","narrative":"South Dakota is uniformly Zone 1 radon. Agricultural runoff drives EPA SDWIS nitrate compliance pressure in small rural systems. Tornado risk peaks April-June."},"radonZone":null,"airQuality":null,"waterQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-15","canonicalUrl":"https://zipradar.org/topic/deed-activity/57101/","zipDashboardUrl":"https://zipradar.org/zip/57101/","zipDashboardApiUrl":"https://zipradar.org/api/zip/57101/","primarySourceUrl":"https://zipradar.org/methodology/","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/deed-activity/57101/"}}