Reference · built on requestCommons signalPlaces & geographic reference

National Address Database

Authoritative address point coordinates compiled from state, local, and tribal GIS authorities by the US Department of Transportation.

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About

The National Address Database (NAD) is an open, authoritative spatial address repository coordinated by the US Department of Transportation in collaboration with federal, state, local, and tribal GIS partners. It compiles geographic address point coordinates, street names, building numbers, and jurisdictional attribution into a single standardized national schema to support public safety, emergency dispatch, and transportation logistics.

Through Fibric, an operator references authoritative address points and geographic coordinates, proposing precise delivery drop-off coordinates or correcting disputed shipping locations for operations teams.

This is a reference listing. It documents what Fibric would read from National Address Database and what it could propose, based on the publisher's published interfaces. Fibric builds it under a managed deployment when you request it; selecting it here installs nothing.

Inputs

  • Geographic address points with latitude and longitude coordinates in WGS 84 (EPSG:4326)
  • Standardized address attributes including street number, street name, post type, and unit
  • State, county, and incorporated municipal jurisdictional names from authoritative source data
  • Authoritative source agency metadata and last-updated timestamps for each address point
  • ArcGIS FeatureServer query endpoints and downloadable GeoPackage or shapefile releases

Proposed actions

Read-only. This feed informs operators; it changes nothing.

Proposed actions are target capabilities. Every action runs propose-first and needs a validated deployment and the appropriate permissions.

What you can build

  • Pinpoint precise delivery entrance coordinates

    Match customer street addresses against NAD rooftop and driveway points, proposing exact latitude and longitude pins to assist final delivery dispatch.

    With Address Repair, Field Dispatch

  • Resolve disputed delivery location claims

    When customers contest shipment drop-off locations, compare carrier delivery scan coordinates against authoritative NAD address points to assess delivery disputes.

    With Delivery Dispute, Missed Delivery

  • Audit regional territory coverage

    Query address point densities within service boundaries, proposing adjusted technician territory partitions based on confirmed residential point counts.

    With Territory Balance

Requirements

  • Spatial querying software or geospatial database capable of indexing millions of point records
  • Spatial search bounds or coordinate radius parameters to filter nationwide address datasets
  • Cross-referencing logic to account for participating versus non-participating state geographic coverage
Authentication
None. The National Address Database is published as public open data requiring no registration, credentials, or API keys.

Limits

  • Coverage depends on voluntary state and local government data submissions and is not yet complete nationwide
  • Database releases occur periodically as contributing jurisdictions submit updated address point layers
  • Bulk downloads are distributed as large multi-gigabyte file archives requiring local storage

Access and pricing

Reference listing. Public feed access is separate from Fibric integration. If you request this feed, your quote covers the build, usage, and support.

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Questions and answers

What is the primary source of addresses in the NAD?
The National Address Database is assembled directly from authoritative state, county, municipal, and tribal GIS authorities who create and maintain local 911 address databases.
How is the National Address Database distributed?
The dataset is available as downloadable GeoPackage, Esri File Geodatabase, and shapefile archives, as well as an interactive ArcGIS REST FeatureServer maintained by USDOT.
Does the database cover all fifty states?
Coverage is expanding with each release as more states participate with USDOT. Currently, over forty states and territories submit authoritative address points to the program.
Ask about National Address Database

Ask about the capabilities and requirements in this listing.

For project-specific requirements, contact Fibric.

This Commons signal listing is developed, published, and supported by Fibric. It reads public data published by US Department of Transportation (www.transportation.gov/gis/national-address-database). Upstream agencies and projects are the property of their respective owners, who are not affiliated with Fibric and do not sponsor or endorse this listing. Trademark policy