Federated neighborhood data
Public-records lookup for every US ZIP code
zipradar federates twelve datasets — water quality, flood zones, wildfire risk, crime, schools, property tax, radon, lead pipes, zoning, air quality, deeds, and the sex-offender registry — sourced from EPA, FEMA, FBI, NCES, and county records. One page per ZIP, free to read, sources cited on every claim.
340 ZIPs · 51 jurisdictions · 12 topics · 60 explainers · 407 ZIP comparisons live now. Don't see your ZIP? Email us to prioritize it.
Every zipradar ZIP page covers 12 dimensions of neighborhood data
Each dimension below is sourced from the primary federal or county regulator that owns the data, refreshed on the regulator's own cadence, and linked back to the source record so any claim can be independently verified.
Water quality
Source: EPA SDWIS
Drinking-water violations, lead-copper results, and health alerts per community water system, sourced from EPA SDWIS and refreshed quarterly.
Flood zone
Source: FEMA NFHL
Official FIRM flood-zone classifications by address with base flood elevations, sourced from the FEMA National Flood Hazard Layer and refreshed quarterly.
Wildfire risk
Source: USDA Forest Service
Community-level wildfire hazard potential on a five-step scale, sourced from USDA Forest Service Wildfire Risk to Communities and refreshed annually.
Air quality
Source: EPA AirNow
Current AQI and multi-year averages from the nearest EPA AirNow monitoring station, per US ZIP code.
Crime
Source: FBI UCR
Reported crime per 100,000 residents, normalized across years and agencies, sourced from the FBI Crime Data Explorer.
Schools
Source: NCES Common Core of Data
District boundary, enrollment, student-teacher ratio, and school demographics sourced from the NCES Common Core of Data.
Radon
Source: EPA Radon Zones
County-level radon risk zone (1, 2, or 3) sourced from the EPA Map of Radon Zones, with state-level supplementary testing context.
Lead pipes
Source: EPA LCRR + RTI National Lead Pipe Map
Lead service-line counts reported under the 2024 Lead and Copper Rule Revisions, sourced from EPA LCRR and RTI's national map.
Property tax
Source: County assessors
Millage rates and assessment methodology from county assessor offices, covering the top 50 US metros.
Deed activity
Source: County recorders
Recent deed-transfer counts aggregated to ZIP level, sourced from county recorder offices. Homeowner names are never cached or republished.
Zoning
Source: Municipal planning departments
Residential, commercial, industrial, and mixed-use zoning classifications sourced from municipal planning departments.
Sex offender registry
Source: NSOPW (federal deep-link)
Deep-link to the Department of Justice's National Sex Offender Public Website (NSOPW). zipradar does NOT cache or republish registry records.
zipradar federates ten federal portals into one address-keyed page
Each US federal agency owns one excellent public dataset: EPA for water and radon, FEMA for flood maps, FBI for crime, USDA Forest Service for wildfire, NCES for schools, and NSOPW for the sex-offender registry. A homebuyer, renter, or relocation consultant who wants the full picture has to visit ten different portals — each with its own schema, query interface, and attribution requirements.
zipradar federates those sources behind one address-keyed page. Same public data, one interface, attribution on every row, regulator refresh cadence honored, no personal data cached. Every fact links back to the primary source record so any claim can be independently verified.
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.