National Address Database

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The U.S. Department of Transportation (USDOT) and its partners from all levels of government recognize the need for a National Address Database (NAD).  Accurate and up-to-date addresses are critical to transportation safety and are a vital part of Next Generation 9-1-1. They are also essential for a broad range of government services, including mail delivery, permitting, and school siting. To meet this need, USDOT partners with address programs from state, local, and tribal governments to compile their authoritative data into the NAD.

To learn more about addresses and the National Address Database please visit this StoryMap.

Release 19 of the NAD, containing 90 million records, is now available for download from the link at the top left menu.

The National Address Database (NAD) has been working from the same schema since 2017. That schema was loosely based on the National Emergency Number Association (NENA) Next Generation 9-1-1 address standard and the Federal Geographic Data Committee (FGDC) Address Data Content Standard. Since then, the Address Content Subgroup of the Address Subcommittee of the FGDC has compiled content requirements for the NAD, and the NAD has transitioned to a new schema to align with these content requirements. Information about the latest schema can be found from the link at the top left menu.

If you represent a state or local government and would like to include your address points in the NAD, please contact us at nad@dot.gov.

View detailed information on participation by state below the maps.

View detailed information on processing status by county below the maps.

View detailed information on  age of data submission by State below the maps.

USDOT National Address Database (NAD) Map, Partner Participation by State (as of June 2025)

The color-coded key is described as follows:

Thirty-Seven (37) Dark Green areas have provided address data including: Alabama, Alaska, Arizona, Arkansas, Colorado, Connecticut, Delaware, District of Columbia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Montana, Nebraska, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.

Two (2) Yellow areas have not yet submitted data to be processed including: Puerto Rico, and U.S. Virgin Islands.

Seven (7) Light purple areas do not have data to provide including: California, Florida, Georgia, Louisiana, Mississippi, Missouri, and Nevada.

Seven (7) Dark purple areas may have data that is not in the public domain including: Hawaii, Michigan, Minnesota, New Hampshire, Oregon, South Carolina, and South Dakota.

Hashed lines over Seven (7) areas represent Tribal or local-level participation rather than state-wide participation including: California, Florida, Louisiana, Minnesota, Missouri, South Carolina, and South Dakota.

Note that not all areas have 100% coverage.

USDOT National Address Database (NAD) Map, Processing Status by County (as of June 2025)

The map includes a color-coded key that identifies the NAD status level by county.

The color-coded key is described as follows:

Dark Green color indicates submitted address data has been processed for the following Twenty-Two (22) whole areas: Alabama, Arizona, Arkansas, Connecticut, Delaware, District of Columbia, Indiana, Maine, Massachusetts, Montana, New Jersey, New Mexico, New York, North Carolina, Ohio, Rhode Island, Tennessee, Utah, Vermont, Virginia, Washington and West Virginia; and Twenty-Two (22) partial areas including parts of: Alaska, California, Colorado, Florida, Idaho, Illinois, Iowa, Kansas, Kentucky, Louisiana, Maryland, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, Pennsylvania, South Carolina, South Dakota, Texas, Wisconsin, and Wyoming.

Light Yellow color indicates data has not been provided for processing yet and remains 'In Queue' status for the following Two (2) whole area: Puerto Rico, and U.S. Virgin Islands; and Seven (7) partial areas including parts of: Alaska, Idaho, Kentucky, Nebraska, Oklahoma, Pennsylvania, and Texas.

Light Purple color indicates data does not exist or is not part of the statewide program for the following Three (3) whole areas: Georgia, Mississippi, and Nevada; and Eight (8) partial areas including parts of: California, Colorado, Florida, Iowa, Louisiana, Missouri, Wisconsin, and Wyoming.

Dark Purple color indicates the data may not be in the public domain for the following Four (4) whole areas: Hawaii, Michigan, New Hampshire, and Oregon; and Eight (8) partial areas including parts of: Colorado, Illinois, Kansas, Maryland, Minnesota, North Dakota, South Carolina, and South Dakota.

Note that not all areas have 100% coverage.

USDOT National Address Database (NAD) Map, Age of Data Submission by County or local partner (as of June2025)

The map includes a color-coded key that identifies the NAD age of data submission by county or local partner.

The color-coded key is described as follows:

Dark Green color indicates the newest data is less than Six (6) months old for the following Nine (9) whole areas:  Arkansas, Indian, Massachusetts, Montana, New York, North Carolina, Tennessee, Utah, and Vermont; and Nine (9) partial areas including parts of: Alaska, California, Florida, Kansas, Pennsylvania, South Carolina, South Dakota, Wisconsin, and Wyoming.

Light Green color indicates the newest data is less than One (1) year old for the following Five (5) whole areas: Alabama, Delaware, Maine, New Mexico, and Rhode Island; and Nine (9) partial areas including parts of: Alaska, California, Florida, Idaho, Illinois, Minnesota, Oklahoma, Texas, and Wyoming.

Yellow color indicates the newest data is less than Two (2) years old for the following Four (4) whole areas: Arizona, New Jersey, Virginia, and West Virginia; and Eight (8) partial areas including parts of: Iowa, Kentucky, Louisiana, Maryland, Minnesota, Missouri, Pennsylvania, and Wyoming.

Orange color indicates the newest data is less than Three (3) years old for Two (2) whole areas: Connecticut, and District of Columbia; and Seven (7) partial areas including parts of: Colorado, Florida, Nebraska, Oklahoma, Pennsylvania, South Dakota, and Wyoming.

Red color indicates the newest data is at least Three (3) years old for Zero (0) whole areas, and Five (5) partial areas including parts of: Louisiana, North Dakota, Pennsylvania, Wisconsin, and Wyoming.

Note that not all areas have 100% coverage.