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Clone of Demographics Data Methods, Limitations, and References

General information

This section contains information on methods, limitations, and references from Demographics in San Mateo County maps.

Age

Methods

  • Data were obtained from U.S. Census Bureau’s 2010-2014 American Community Survey 5-year Estimates at American FactFinder.
  • Data were mapped using ArcGIS for Desktop and ArcGIS Online.

Limitations

  • Approximately 295,000 households are selected to participate in the annual American Community Survey, or less than 1 percent of all households in the U.S. 
  • Data were estimates based on survey responses, and not actual counts.  
  • Estimates have some chance of error.

References

U.S. Census Bureau, American Community Survey and Puerto Rico Community Survey 2014 Subject Definitions

Race/Ethnicity

Methods

  • Data were obtained from U.S. Census Bureau’s 2010-2014 American Community Survey 5-year Estimates at American FactFinder.
  • Data were mapped using ArcGIS for Desktop and ArcGIS Online.

Limitations

  • Approximately 295,000 households are selected to participate in the annual American Community Survey, or less than 1 percent of all households in the U.S. 
  • Data were estimates based on survey responses, and not actual counts.  
  • Estimates have some chance of error.

References

U.S. Census Bureau, American Community Survey and Puerto Rico Community Survey 2014 Subject Definitions

Commands