{"@context":"https://schema.org","@type":"Place","@id":"https://zipradar.org/zip/78641/","name":"Leander (TX), TX (ZIP 78641)","zip":"78641","city":"Leander (TX)","state":"TX","stateFull":"Texas","county":"Williamson County (TX)","countySlug":"williamson-county","address":{"@type":"PostalAddress","addressLocality":"Leander (TX)","addressRegion":"TX","postalCode":"78641","addressCountry":"US"},"geo":{"@type":"GeoCoordinates","latitude":30.5788,"longitude":-97.8531},"datePublished":"2026-04-24","dateModified":"2026-09-24","canonicalUrl":"https://zipradar.org/zip/78641/","countyDashboardUrl":"https://zipradar.org/county/tx/williamson-county/","stateDashboardUrl":"https://zipradar.org/state/tx/","dimensions":[{"slug":"water-quality","label":"Water quality","source":"EPA SDWIS","sourceUrl":"https://www.epa.gov/ground-water-and-drinking-water/safe-drinking-water-information-system-sdwis-federal-reporting","refreshCadence":"Quarterly (federal mandate)","summary":"Pages show the largest community water system on record for the ZIP's county, its PWSID and population served, and its health-based and total violations in the last 3 years. Lead and copper sampling results are not shown; your utility's annual water quality report (CCR) has them.","apiUrl":"https://zipradar.org/api/topic/water-quality/78641/","htmlUrl":"https://zipradar.org/topic/water-quality/78641/"},{"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.","apiUrl":"https://zipradar.org/api/topic/flood-zone/78641/","htmlUrl":"https://zipradar.org/topic/flood-zone/78641/"},{"slug":"wildfire-risk","label":"Wildfire risk","source":"USDA Forest Service","sourceUrl":"https://wildfirerisk.org/","refreshCadence":"Annual (USFS update)","summary":"Not on zipradar yet. The plan is the USFS hazard score in plain English and the exposure type (direct flame or ember). Until then, Wildfire Risk to Communities has the official figures.","apiUrl":"https://zipradar.org/api/topic/wildfire-risk/78641/","htmlUrl":"https://zipradar.org/topic/wildfire-risk/78641/"},{"slug":"air-quality","label":"Air quality","source":"EPA Air Quality System (AQS), annual county summary","sourceUrl":"https://aqs.epa.gov/aqsweb/airdata/download_files.html","refreshCadence":"Annual (EPA AQS publication)","summary":"Pages show the 2025 median AQI category (Good, Moderate, Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, Hazardous) for the ZIP's county, plus the year's max/90th-percentile AQI and day-count breakdown by category.","apiUrl":"https://zipradar.org/api/topic/air-quality/78641/","htmlUrl":"https://zipradar.org/topic/air-quality/78641/"},{"slug":"crime","label":"Crime","source":"FBI UCR","sourceUrl":"https://cde.ucr.cjis.gov/","refreshCadence":"Rolling agency submissions to the FBI","summary":"Not on zipradar yet. The plan is per-100k rates (never raw counts) for major offense categories, the reporting agency, and whether reporting was complete. Until then, the FBI Crime Data Explorer has the agency figures.","apiUrl":"https://zipradar.org/api/topic/crime/78641/","htmlUrl":"https://zipradar.org/topic/crime/78641/"},{"slug":"schools","label":"Schools","source":"NCES Common Core of Data","sourceUrl":"https://nces.ed.gov/ccd/","refreshCadence":"Annual (NCES releases with one-year lag)","summary":"Not on zipradar yet. The plan is the assigned public school district, enrollment and student-teacher ratio from NCES. Until then, NCES and the district's own site have the figures.","apiUrl":"https://zipradar.org/api/topic/schools/78641/","htmlUrl":"https://zipradar.org/topic/schools/78641/"},{"slug":"radon","label":"Radon","source":"EPA Radon Zones","sourceUrl":"https://www.epa.gov/radon/find-information-about-local-radon-zones-and-state-contact-information","refreshCadence":"Static 1993 baseline plus state-level supplementary updates","summary":"Pages show the county zone, what the classification means for home testing recommendations, and state-level supplementary data where available.","apiUrl":"https://zipradar.org/api/topic/radon/78641/","htmlUrl":"https://zipradar.org/topic/radon/78641/"},{"slug":"lead-pipes","label":"Lead pipes","source":"EPA LCRR + RTI National Lead Pipe Map","sourceUrl":"https://www.epa.gov/sourcewaterprotection/drinking-water-mapping-application-protect-source-waters-dwmaps","refreshCadence":"Quarterly as state primacy agencies report","summary":"Not on zipradar yet. The plan is the utility's reported count of lead, galvanized-requiring-replacement and unknown-material lines. Until then, your water utility's service line inventory has them.","apiUrl":"https://zipradar.org/api/topic/lead-pipes/78641/","htmlUrl":"https://zipradar.org/topic/lead-pipes/78641/"},{"slug":"property-tax","label":"Property tax","source":"County assessors","sourceUrl":"https://zipradar.org/methodology/","refreshCadence":"Annual reassessment per county","summary":"Not on zipradar yet. The plan is the county millage rate, assessment method and homestead or senior exemptions. Until then, the county assessor's portal has address-specific figures.","apiUrl":"https://zipradar.org/api/topic/property-tax/78641/","htmlUrl":"https://zipradar.org/topic/property-tax/78641/"},{"slug":"deed-activity","label":"Deed activity","source":"County recorders","sourceUrl":"https://zipradar.org/methodology/","refreshCadence":"Daily at the county recorder","summary":"Not on zipradar yet. The plan is ZIP-level counts of deeds filed over the last 30, 90 and 365 days, never names or signatures. Until then, the county recorder's portal is the place to look.","apiUrl":"https://zipradar.org/api/topic/deed-activity/78641/","htmlUrl":"https://zipradar.org/topic/deed-activity/78641/"},{"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.","apiUrl":"https://zipradar.org/api/topic/zoning/78641/","htmlUrl":"https://zipradar.org/topic/zoning/78641/"},{"slug":"sex-offender-registry","label":"Sex offender registry","source":"NSOPW (federal deep-link)","sourceUrl":"https://www.nsopw.gov/","refreshCadence":"Real-time (registry is the canonical source; zipradar doesn't mirror)","summary":"Pages provide a clickable deep-link to search NSOPW by ZIP or address. zipradar does NOT mirror, cache, or republish any registry records — NSOPW is the sole source of truth.","apiUrl":"https://zipradar.org/api/topic/sex-offender-registry/78641/","htmlUrl":"https://zipradar.org/topic/sex-offender-registry/78641/"}],"license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/zip/78641/"}}