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home/Address validation/Experian Address Validation/Dataset reference/United States of America

United States of America

The U.S. address infrastructure, maintained by the United States Postal Service (USPS), supports over 160 million delivery points with unmatched geographic coverage. It powers everything from e-commerce and emergency services to financial compliance and voter registration.

Standard address format

A simple business address might look like the below example.

"address": {
    "address_line_1": "Experian",           // Lines 1-3 contain flexible delivery information
    "address_line_2": "1 Main St",          // like organization, street, PO Box, etc
    "address_line_3": "",
    "locality": "OAKTON",                   // City
    "region": "VA",                         // State abbreviation
    "postal_code": "12345-6789",            // ZIP+4
    "country": "UNITED STATES OF AMERICA"   // Country name
}

Address and Enrichment datasets

The US address dataset is a comprehensive and standardized database built on authoritative sources, primarily the United States Postal Service (USPS). It includes validated address components such as ZIP+4 codes and delivery point verification (DPV), ensuring high accuracy for mail delivery, customer onboarding, and regulatory compliance.

Country ISO3 usa
Dataset identifier us-address
Data source United States Postal Service
Update frequency Monthly

This dataset is particularly valuable for organizations operating in the U.S. that require reliable address data for logistics, marketing, fraud prevention, and customer engagement. Industries such as e-commerce, financial services, healthcare, utilities, and government benefit from its ability to reduce undeliverable mail, improve user experience, and meet compliance standards like KYC and AML.

Include us-address in the datasets array within your /Search, /Validate or /Lookup request. See an example of a partial /Search request and response structure below.

Request Response 
{
  "country_iso": "usa",
  "components": {
    "unspecified": [
      "1 main"
    ]
  },
  "datasets": [ "us-address" ]
}

{
  "result": {
    "more_results_available": boolean,
    "confidence": "string",
    "suggestions": [
      {
        "global_address_key": "string",
        "text": "string",
        "matched": [[integer, integer]],
        "format": "string"
      }
    ]
  }
}

The Regional Location Insights Enrichment set provides enriched geospatial and administrative context for U.S. addresses. The set provides nationwide coverage of address-level geolocation data derived from surveys conducted by the U.S. Census Bureau.

Dataset identifier usa_regional_geocodes
Data source U.S. Census Bureau
Update frequency Monthly

This Enrichment includes precise latitude and longitude coordinates along with a match-level indicator to assess geocode accuracy. Each address is linked to key geographic and political boundaries, including census blocks and tracts (used for demographic analysis), counties, and congressional districts (via FIPS codes).

When exact coordinates are unavailable, the system calculates and returns centroid averages based on ZIP+4, ZIP+2, or ZIP-level matches. If no match is possible, no data is returned. It supports high-precision mapping, routing, and spatial analysis across all U.S. states and territories.

Each Enrichment dataset is divided into one or more items. Experian Address Validation can be configured to return these items via the Enrichment section. Find detailed information about the available elements for the usa_regional_geocodes Enrichment set below.

Attribute Type Description
latitude double Geographic latitude of the address in decimal degrees.
longitude double Geographic longitude of the address in decimal degrees.
match_level string Precision level of the geocoded coordinates for the address.
census_tract string Smallest geographic unit used by the U.S. Census Bureau for population data collection.
census_block string Defined geographic area used by the U.S. Census Bureau, typically bounded by streets or natural features.
core_based_statistical_area string Region defined by the U.S. Office of Management and Budget, centered around an urban area.
congressional_district_code string FIPS-based code identifying the U.S. congressional district, including state and district identifiers.
county_code string Numeric code representing the county within a U.S. state or territory.
Request Response 
{
  ...,
  "attributes": {
    "usa_regional_geocodes": [
      "latitude",
      "longitude",
      "match_level",
      "census_tract",
      "census_block",
      "core_based_statistical_area",
      "congressional_district_code",
      "county_code"
    ]
  }
}

{
  ...,
  "enrichment": {
    "result": {
      "usa_regional_geocodes": {
        "latitude": double,
        "longitude": double,
        "match_level": "string",
        "census_tract": "string",
        "census_block": "string",
        "core_based_statistical_area": "string",
        "congressional_district_code": "string",
        "county_code": "string"
      }
    }
  }
}
Experian Address Validation

Dataset reference