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CITYERR
Coverage error in CITY variable

Description

CITYERR identifies the level of mismatch error between each CITY code and the corresponding city.

CITY's code assignment protocol yields errors of omission (where a CITY code is not assigned to some residents of the corresponding city) and errors of commission (where a CITY code is assigned to some non-residents of the city). As an index of mismatch for each CITY code, IPUMS uses the sum of percent omission error (the portion of a city's population residing in excluded PUMAs) and percent commission error (the portion of the population in associated PUMAs that did not reside in the city).

For each reported CITY code in 1990 and later samples, CITYERR identifies the level of the sum of errors.

To ensure that CITY codes are generally representative of city populations, cities are identified only where the sum of match errors is less than 10%. Researchers may use CITYERR to impose a more restrictive error limit if desired.

For more detailed information about PUMA-city relationships and CITY match errors, IPUMS provides these tables (in Excel spreadsheets):

1990 5% State sample:

1990 1% Metro sample:

2000 5% samples and 2005-2011 ACS and PRCS samples :

2000 1% samples:

2010 10% sample and 2012 and later ACS and PRCS samples:

Codes and Frequencies



Can't find the category you are looking for? Try the Detailed codes

Comparability

This variable is completely comparable across samples.

Universe

  • 1960, 1990: All households and group quarters; not available for Puerto Rico.
  • 2000: All households and group quarters.
  • ACS, PRCS: All households and group quarters.
  • 2010: All households and group quarters.

Availability

United States
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 2011: All samples
  • 2010: All samples
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2004: --
  • 2003: --
  • 2002: --
  • 2001: --
  • 2000: 5%; 1% old; 1% unwt; 1%
  • 1990: 5%; 1%; 1% unwt; 3% elderly
  • 1980: --
  • 1970: --
  • 1960: 5%
  • 1950: --
  • 1940: --
  • 1930: --
  • 1920: --
  • 1910: --
  • 1900: --
  • 1880: --
  • 1870: --
  • 1860: --
  • 1850: --
Puerto Rico
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 2011: All samples
  • 2010: All samples
  • 2009: All samples
  • 2008: PRCS
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2000: All samples
  • 1990: --
  • 1980: --
  • 1970: --
  • 1930: --
  • 1920: --
  • 1910: --

Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.