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National Address Database

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.

Release 8 of the NAD, containing 65.4 million records, is now available for download from the link at the top left of this page. 

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.

The map includes a color-coded key that identifies the National Address Database (NAD) partner participation by state.
USDOT National Address Database (NAD) Map, Partner Participation by State (as of November 2021)

View detailed information on participation by state below the maps.

The map includes a color-coded key that identifies the National Address Database (NAD) processing status by county.
USDOT National Address Database (NAD) Map, Processing Status by County (as of November 2021)

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

The map includes a color-coded key that identifies age of data submissions in the National Address Database (NAD) by state.
USDOT National Address Database (NAD) Map, Age of Data Submission by State (as of November 2021)

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 November 2021)

The color-coded key is described as follows:

Twenty-Eight (28) Dark Green states have provided address data including: Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Indiana, Iowa, Kansas, Maine, Maryland, Massachusetts, Montana, New Jersey, New Mexico, New York, North Carolina, Ohio, Oregon, Rhode Island, Tennessee, Texas, Utah, Vermont, Virginia, and Wisconsin.

Seven (7) Yellow states have not yet submitted data to be processed including: Florida, Illinois, Mississippi, Nebraska, Pennsylvania, Washington, and West Virginia.

Eight (8) Light purple states do not have data to provide including: Alabama, Georgia, Idaho, Louisiana, Missouri, Nevada, Oklahoma, and Wyoming.

Eight (8) Dark purple states may have data that is not in the public domain including: Hawaii, Kentucky, Michigan, Minnesota, New Hampshire, North Dakota, South Carolina, and South Dakota.

Hashed lines over Five (5) states represent Tribal or local-level participation rather than state-wide participation including: Louisiana, Minnesota, Missouri, South Dakota, and Wyoming.

Note that not all states have 100% coverage.

USDOT National Address Database (NAD) Map, Processing Status by County (as of November 2021)

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 Nineteen (19) whole states: Arizona, Connecticut, Delaware, District of Columbia, Indiana, Maine, Massachusetts, Montana, New Jersey, New Mexico, New York, North Carolina, Ohio, Oregon, Rhode Island, Tennessee, Utah, Vermont, and Virginia; and Fourteen (14) partial states including parts of: Alaska, Arkansas, California, Colorado, Iowa, Kansas, Louisiana, Maryland, Minnesota, Missouri, South Dakota, Texas, Wisconsin, and Wyoming.

Light Green color indicates submitted address data is being processed for Zero (0) states.

Light Yellow color indicates data has not been provided for processing yet and remains 'In Queue' status for the following Eight (8) whole states: Florida, Illinois, Mississippi, Nebraska, Pennsylvania, Puerto Rico, Washington, and West Virginia; and Three (3) partial states including parts of: Alaska, California, and Texas.

Light Purple color indicates data does not exist or is not part of the statewide program for the following Five (5) whole states: Alabama, Georgia, Idaho, Nevada, and Oklahoma; and Seven (7) partial states including parts of: Arkansas, Colorado, Iowa, Louisiana, Missouri, Wisconsin, and Wyoming.

Dark Purple color indicates the data may not be in the public domain for the following Six (6) whole states: Hawaii, Kentucky, Michigan, New Hampshire, North Dakota, and South Carolina; and Five (5) partial states including parts of: Colorado, Kansas, Maryland, Minnesota, and South Dakota.

Note that not all states have 100% coverage.

USDOT National Address Database (NAD) Map, Age of Data Submission by State (as of November 2021)

The map includes a color-coded key that identifies the NAD age of data submission by state.

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 Fourteen (14) states: Alaska, Arizona, Arkansas, Massachusetts, Minnesota, Montana, New Jersey, New Mexico, New York, Tennessee, Texas, Utah, Virginia, and Wyoming.

Light Green color indicates the newest data is less than One (1) year old for the following Eleven (11) states: California, Colorado, Connecticut, Delaware, District of Columbia, Indiana, Iowa, Kansas, Maine, Oregon, and South Dakota.

Yellow color indicates the newest data is less than Two (2) years old for the following Three (3) states: North Carolina, Rhode Island, and Vermont.

Orange color indicates the newest data is less than Three (3) years old for the following Three (3) states: Louisiana, Maryland, and Wisconsin.

Red color indicates the newest data is at least Three (3) years old for the following Two (2) states: Missouri, and Ohio.

Dark Grey color indicates data is not currently provided for the following Eighteen (18) states: Alabama, Florida, Georgia, Hawaii, Idaho, Illinois, Kentucky, Michigan, Mississippi, Nebraska, Nevada, New Hampshire, North Dakota, Oklahoma, Pennsylvania, South Carolina, Washington, and West Virginia.

Note that not all states have 100% coverage.

Last updated: Monday, December 20, 2021