NMOpen data catalog
Albuquerque
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Official starting points / the open-data field guide
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Explore 72 selected city resources, with examples across every state and D.C. Find clues about streets, services, and local life.
72 of 72 starting points
VAGIS and maps
Alexandria
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AKOpen data catalog
Anchorage
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MIOpen data catalog
Ann Arbor
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COGIS and maps
Arvada
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NCOpen data catalog
Asheville
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GAGIS and maps
Atlanta
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TXOpen data catalog
Austin
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MDOpen data catalog
Baltimore
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LAOpen data catalog
Baton Rouge
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ALData access page
Birmingham
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INOpen data catalog
Bloomington
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IDGIS and maps
Boise
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MAOpen data catalog
Boston
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COOpen data catalog
Boulder
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VTData access page
Burlington
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ILGIS and maps
Champaign
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NCOpen data catalog
Chapel Hill
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NCOpen data catalog
Charlotte
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VAGIS and maps
Chesapeake
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WYGIS and maps
Cheyenne
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ILOpen data catalog
Chicago
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SCGIS and maps
Columbia
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OHOpen data catalog
Columbus
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TXOpen data catalog
Dallas
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COGIS and maps
Denver
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IAOpen data catalog
Des Moines
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MIOpen data catalog
Detroit
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NCGIS and maps
Durham
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NDData access page
Fargo
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CTGIS and maps
Hartford
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HIOpen data catalog
Honolulu
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TXOpen data catalog
Houston
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MSData access page
Jackson
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NJOpen data catalog
Jersey City
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MOOpen data catalog
Kansas City
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NVData access page
Las Vegas
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KYOpen data catalog
Lexington
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NEOpen data catalog
Lincoln
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AROpen data catalog
Little Rock
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CAOpen data catalog
Los Angeles
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KYOpen data catalog
Louisville
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WIGIS and maps
Madison
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NHGIS and maps
Manchester
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WIOpen data catalog
Milwaukee
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MNOpen data catalog
Minneapolis
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MTGIS and maps
Missoula
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WVGIS and maps
Morgantown
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TNOpen data catalog
Nashville
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LAData access page
New Orleans
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NYOpen data catalog
New York City
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FLOpen data catalog
Orlando
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CAOpen data catalog
Palo Alto
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PAOpen data catalog
Philadelphia
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ORData access page
Portland
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MEGIS and maps
Portland
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RIOpen data catalog
Providence
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NCData access page
Raleigh
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UTOpen data catalog
Salt Lake City
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TXOpen data catalog
San Antonio
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CAData access page
San Francisco
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AZOpen data catalog
Scottsdale
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WAOpen data catalog
Seattle
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SDOpen data catalog
Sioux Falls
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MAOpen data catalog
Somerville
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INGIS and maps
South Bend
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WAData access page
Spokane
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AZOpen data catalog
Tempe
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OKData access page
Tulsa
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DCOpen data catalog
Washington
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KSOpen data catalog
Wichita
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DEData access page
Wilmington
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Directory checked October 17, 2026. Selected city examples in all 50 states and D.C.; coverage is not complete. Links may change. Inclusion is not endorsement. Check licenses, update dates, and download rules on each portal.
Before you download: stop and check.
- 01Read the date. Is the dataset current enough for your question?
- 02Read the description. What is counted, and what is missing?
- 03Read the rules. Public access does not always mean unlimited reuse.
- 04Save the source. Keep the link, license, and download date with your work.
Source: Data.gov official government portal directory ↗
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