• City data source information

  Primary source:

  Wolfram|Alpha Knowledgebase, 2024.
  Wolfram Language CityData. »

  Background sources and references:

  • Brinkhoff, T. City Population.
  • Cohen, S. (Ed.). The Columbia Gazetteer of the World. Columbia University Press, 2008.
  • Demographics USA: City Edition 1996. Sales & Marketing Management, 1996.
  • Federal Housing Finance Agency. House Price Indexes.
  • Gibson, Campbell. "Population of the 100 Largest Cities and Other Urban Places in the United States: 1790 to 1990." Population Division Working Paper POP-WP027, United States Bureau of the Census, 1998.
  • GeoNames. GeoNames.org.
  • Government of Ireland & Tailte Eireann. GeoHive.
  • Knowledgerush. List of City Nicknames. 2013.
  • The London Times. Index-Gazetteer of the World. The Times Publishing Co., 1965.
  • Munro, D. (Ed.). Cambridge World Gazetteer: A Geographical Dictionary. Cambridge University Press, 1988.
  • National Association of Realtors. Realtor.org.
  • Room, A. Place-Name Changes Since 1900: A World Gazetteer. Scarecrow Press, 1979.
  • Spiritus-Temporis.com. List of City Nicknames. 2013.
  • Texas A&M Transportation Institute. "Congestion Data for Your City." Urban Mobility Report.
  • United States Census Bureau. "2020 Census."
  • United States Census Bureau. "American Community Survey Data."
  • United States Census Bureau. "International Database (IDB)."
  • United States Census Bureau. "Metropolitan and Micropolitan."
  • United States Census Bureau. "Population."
  • United States Census Bureau. Statistical Abstracts of the United States.
  • United States Central Intelligence Agency. The World Factbook.
  • United States Department of Justice, Bureau of Justice Statistics. "Data."
  • United States Geological Survey. "Data."
  • United States National Geospatial-Intelligence Agency. Geographic Names Server.
  • The Wikimedia Foundation, Inc. Wikipedia.

• Metropolitan area data source information

  Primary source:

  Wolfram|Alpha Knowledgebase, 2024.

  Background sources and references:

  • Office for National Statistics. "KS01 Usual Resident Population: Census 2001, Key Statistics for Urban Areas." UK National Statistics. »
  • Statistics Canada. "Population and Dwelling Counts, for Census Metropolitan Areas and Census Agglomerations, 2006 and 2001 censuses - 100% data." Census. »
  • United Nations. "World Urbanization Prospects: The 2007 Revision Population Database." United Nations Population Division. »
  • United States Census Bureau. "2003 Metropolitan and Micropolitan Statistical Areas Cartographic Boundary Files." Cartographic Boundary Files. »
  • United States Census Bureau. "Current Lists of Metropolitan and Micropolitan Statistical Areas and Definitions." Metropolitan and Micropolitan Statistical Areas. »
  • United States Census Bureau. "Metropolitan and Micropolitan Statistical Area Estimates." Population Estimates. »

• Mapping data source information

  Sources and references:

  • Flanders Marine Data Centre. VLIMAR, the VLIZ Marine Gazetteer. »
  • Hijmans, R., et al. Global Administrative Areas (GADM). »
  • OpenStreetMap (CC-BY-SA). »

• Urban area data source information

  Primary source:

  Wolfram|Alpha Knowledgebase, 2024.

  Background sources and references:

  • United Nations. "The 2007 Revision Population Database." World Urbanization Prospects. »
  • United States Census Bureau. "Lists of Urbanized Areas and Urban Clusters." Census 2000 Urban and Rural Classification. »
  • United States Census Bureau. "Census 2000 Urbanized Areas Cartographic Boundary Files." Cartographic Boundary Files. »

• US census data source information

  Primary source:

  Wolfram|Alpha Knowledgebase, 2024.

  Background sources and references:

  • Gibson, C. "Population of the 100 Largest Cities and Other Urban Places in the United States: 1790 to 1990." Population Division Working Paper no. 27. United States Bureau of the Census, 1998. »
  • United States Census Bureau. "2005-2007 American Community Survey 3‐Year Estimates." American FactFinder. »
  • United States Census Bureau, Administrative and Customer Services Division, Statistical Compendia Branch. "Population by Age and Sex." County and City Data Book: 2007 (14th ed.) U.S. Department of Commerce, 2008. »
  • United States Census Bureau, Administrative and Customer Services Division, Statistical Compendia Branch. "Population by Race and Hispanic Origin." County and City Data Book: 2007 (14th ed.) U.S. Department of Commerce, 2008. »

• US county data source information

  Primary source:

  Wolfram|Alpha Knowledgebase, 2024.

  Background sources and references:

  • Counties USA: A Directory of United States Counties. (3rd ed.) Omnigraphics, 2006.
  • Donato, T. E., et al. (Eds.). Demographics USA 2008: County Edition. Trade Dimensions, 2008.
  • National Association of Counties. NACo. »
  • Trumpet Marketing Group, LLC. United States Map with Counties. »
  • United States Census Bureau. "The 2009 Statistical Abstract." The National Data Book. »
  • United States Census Bureau. State & County QuickFacts. »
  • United States Government. "American Hometowns—Cities, Counties, and Towns." USA.gov. »

• US state data source information

  Primary source:

  Wolfram|Alpha Knowledgebase, 2024.

  Background sources and references:

  • ACT, Inc. "2009 Average ACT Scores by State." ACT News. »
  • Federal Housing Finance Agency. "Metropolitan Statistical Areas and Divisions through 2008Q4." House Price Indexes. »
  • National Association of Realtors. Realtor.org. »
  • National Center for Education Statistics, United States. Department of Education. Digest of Education Statistics. »
  • National Center for Education Statistics, United States Department of Education. "Table 146. SAT Mean Scores of College-Bound Seniors and Percentage of Graduates Taking SAT, by State or Jurisdiction: Selected Years, 1987-88 through 2008-09." Digest of Education Statistics. »
  • National Center for Education Statistics, United States. Department of Education. State Education Data Profiles. »
  • NSTATE, LLC. NETSTATE.COM. »
  • Shearer, B. F. and B. S. Shearer. State Names, Seals, Flags, and Symbols: A Historical Guide. (3rd ed.) Greenwood Press, 2002.
  • United States Census Bureau. "2005-2007 American Community Survey 3‐Year Estimates." American FactFinder. »
  • United States Census Bureau. "The 2009 Statistical Abstract." The National Data Book. »
  • United States Census Bureau. "Quarterly Sales by Price and Financing." New Residential Sales Index. »
  • United States Census Bureau. State and Metropolitan Area Data Book: 2006. (6th ed.) Bureau of Census, 2006.
  • United States Department of Justice, Bureau of Justice Statistics. Crime and Justice Data Online. »
  • The Wikimedia Foundation, Inc. Wikipedia. »

This list is intended as a guide to sources of further information. The inclusion of an item in this list does not necessarily mean that its content was used as the basis for any specific Wolfram|Alpha result.