Geographic coverage: Milwaukee, Biloxi, Indiana, Kalamazoo, Austin, Spokane, Lewiston, Columbus (Ohio), Syracuse, Colonial Heights, Racine, Kenosha, Bryan, Danbury, Providence, Bethlehem, Nashville, Laredo, Knoxville, Mississippi, Beaumont, Midland, Texarkana, Illinois, Denison, Georgia, Little Rock, Maryland, Idaho, Port Arthur, Oklahoma, Arkansas, Washington, Albany (New York), Pawtucket, Bay City, Missouri, Winston-Salem, Scranton, Dallas, Wisconsin, Sioux Falls, Nevada, Des Moines, Muskegon, Lawrence, Bloomington, Hawaii, Normal, Michigan, Baltimore, New Mexico, Orlando, Lacrosse, Canton, Rochester (Minnesota), Atlantic City, Akron, Topeka, Greensboro, Charlotte, High Point, Harlingen, Erie, Waterloo, Charleston (West Virginia), Odessa, Abilene, Bristol, Worchester, Terre Haute, Provo, Jacksonville, Buffalo, Chattanooga, Baton Rouge, Oshkosh, Kansas, Great Falls, Pennsylvania, Iowa, Texas, Fort Wayne, Indianapolis, Richmond, Newport News, St. Joseph, Lafayette (Indiana), Lynchburg, Roanoke, Columbia (Missouri), Nebraska, Shreveport, Superior, Texas City, Warren, West Virginia, Amarillo, Youngstown, Columbia (South Carolina), Colorado, Honolulu, Phoenix, Cedar Rapids, Portland (Maine), District of Columbia, Fayetteville, Boise City, Wilkes-Barre, Salem (Oregon), South Dakota, Lancaster, Monroe, Minnesota, New Jersey, Brockton, Charleston (South Carolina), Lowell, Ohio, South Bend, Waco, North Carolina, Johnstown, Fort Worth, Orange, Utah, San Benito, Lincoln, Arizona, Las Vegas, Springfield (Ohio), Montana, Savannah, Macon, Kentucky, Florida, Hampton, Delaware, Gainesville, Connecticut, Rockford, Virginia, Gulfport, Duluth, Flint, United States, Grand Rapids, Kansas City (Kansas), South Carolina, Muncie, Rome (New York), Tallahassee, Wichita, Nashua, New Britain, Massachusetts, New Orleans, Denver, Salt Lake City, Harrisburg, St. Louis, Saginaw, Lubbock, Corpus Christi, Augusta, San Angelo, Allentown, Raleigh, San Antonio, Springfield (Illinois), Pittsfield, Reno, Louisiana, Toledo, Colorado Springs, Pensacola, Leominster, Albuquerque, Brownsville, Champaign-Urbana, College Station, Utica, Tyler, Lexington, Bridgeport, Billings, Petersburg, Peoria, Memphis, Ogden, Pittsburgh, El Paso, Pueblo, Greenville, Auburn, Haverhill, Lansing, Meriden, Lawton, Tulsa, Green Bay, Pine Bluff, West Palm Beach, Hazleton, Eugene, Tampa, Durham, Hollywood (Florida), Oregon, Madison, Mansfield, Jackson (Michigan), York, Ann Arbor, Tennessee, Maine, Altoona, Cleveland, Dayton, Orem, Decatur, Tacoma, Atlanta, Lima, Hamilton, Fort Smith, Middletown, Sherman, Wilmington (Delaware), Rhode Island, Fitchburg, Fort Lauderdale, Kansas City (Missouri), New York (state), Anderson, Galveston, Lake Charles, Reading, Springfield (Missouri), New Hampshire, Easton, Manchester, Hartford, Trenton, Asheville, Houston, Appleton
The 1970 Census Tract files were originally created by keypunching the data from the printed publications prepared by the Bureau of the Census. The work was done under the direction of Dr. Donald Bogue, whose wife, Elizabeth Mullen Bogue, completed much of the data work. Subsequently, the punchcards were converted to data files and transferred to the National Archive and Records Administration (NARA). ICPSR received copies of these files from NARA and converted the binary block-length records to ASCII format.