Public records for 365 US ZIP codes, with the source on every line
Type a ZIP to see what federal agencies have on record for it. Today that means the EPA radon zone (365 ZIPs), 2025 air quality from EPA monitors (322 ZIPs) and drinking-water violations from EPA SDWIS (325 ZIPs). Flood zones, wildfire, crime, schools and the other topics are plain-English guides that point you to the agency that holds the record.
Browse all 365 ZIPs · 12 topics · How we source it · Not listed? Ask us to add your ZIP.
Updated . Free to read, CC-BY-4.0.
- Radon
- Zone 1highest of EPA's three zones
- Air quality, 2025
- Median AQI 37240 good days of 281 measured
- Drinking water
- 0 violationsLincoln, City of, last 3 years
What each ZIP page covers
Three topics show a value for each ZIP. The rest explain the record and link to the agency that keeps it, so you can look it up there.
- Water qualitydata for 325 ZIPs · EPA SDWIS
- Flood zoneguide · FEMA NFHL
- Wildfire riskguide · USDA Forest Service
- Air qualitydata for 322 ZIPs · EPA Air Quality System
- Crimeguide · FBI UCR
- Schoolsguide · NCES Common Core of Data
- Radondata for 365 ZIPs · EPA Radon Zones
- Lead pipesguide · EPA LCRR + RTI National Lead Pipe Map
- Property taxguide · County assessors
- Deed activityguide · County recorders
- Zoningguide · Municipal planning departments
- Sex offender registryguide · NSOPW
Why one page per ZIP
Each agency keeps one piece: EPA for water, air and radon, FEMA for flood maps, FBI for crime, USDA Forest Service for wildfire, NCES for schools and NSOPW for the sex-offender registry. Someone checking a neighborhood before a move has to search each portal separately, in its own format.
zipradar puts what we have for a ZIP on one page and links every value to the record it came from. The values are county- or system-level, never a reading for a single address, and each page says so.
Coverage started with the top US metro ZIP codes and expands weekly. The coverage map shows every live surface with counts; the methodology page documents source and refresh cadence per dataset; the glossary defines every regulator acronym in plain English.