Data Cart

Your data extract

0 variables
0 samples
View Cart
DATANUM
Data set number

Description

DATANUM identifies the particular sample from which the case is drawn in a given year. For most censuses, the IPUMS has multiple datasets available which were constructed using different sampling techniques (i.e. size/demographic of the sample population, geographic coverage level or location, or duration of the sampling period for the ACS/PRCS samples).

The 1970 samples present a special case; in addition to geographic coding differences, the samples were drawn from two distinct questionnaires ("long forms"), referred to in the IPUMS as Form 1 and Form 2. Different questions were asked of the persons in the Form 1 and Form 2 samples, necessitating separate treatment in the record layout. For other census years, DATANUM has a value of 1 because only one sample is available for that year.

The availability table for each variable indicates whether that variable is available in only certain samples for a given year. For further discussion of sample differences, see "Sample Designs."

Codes

The following years have multiple samples in the IPUMS. Some samples from recent years have been renamed in the IPUMS. The original sample names appear in parentheses.

DATANUM
Census Year
1850:
1 = 1850 1% unweighted sample
2 = 1850 100% dataset
1860 and 1870:
1 = 1860 and 1870 1% samples
2 = 1860 and 1870 1% samples combined with Black oversamples
1880:
1 = 1880 1% sample
2 = 1880 10% sample with oversample
3 = 1880 100% dataset
1900:
1 = 1900 1% sample with oversample (2%)
2 = 1900 1% unweighted sample
3 = 1900 5% sample
1910:
1 = 1910 1.4% sample with oversample
2 = 1910 1% unweighted sample
3 = 1910 1% Puerto Rico sample with oversample
4 = 1910 100% dataset
1920:
1 = 1920 1% sample
2 = 1920 Puerto Rico sample with oversample
3 = 1920 100% dataset
1930:
1 = 1930 1% sample
2 = 1930 5% sample
3 = 1930 5% Puerto Rico sample
4 = 1930 100% dataset
1940:
1 = 1940 1% sample
2 = 1940 100% sample
1950:
1 = 1950 1% sample
1960:
1 = 1960 1% sample
2 = 1960 5% sample (Internal Census)
1970:
1 = 1970 1% Form 1 State sample (5% State)
2 = 1970 1% Form 2 State sample (15% State)
3 = 1970 1% Form 1 Metro sample (5% County group)
4 = 1970 1% Form 2 Metro sample (15% County group)
5 = 1970 1% Form 1 Neighborhood sample (5% Neighborhood characteristics)
6 = 1970 1% Form 2 Neighborhood sample (15% Neighborhood characteristics)
8 = 1970 1% Puerto Rico State sample
9 = 1970 1% Puerto Rico Municipio sample
0 = 1970 1% Puerto Rico Neighborhood sample
1980:
1 = 1980 5% State sample ("A," 5% State)
2 = 1980 1% Metro sample ("B," 1% County group)
3 = 1980 1% Urban/Rural sample ("C," 1% Urban/rural)
4 = 1980 1% Labor Market Areas sample ("D," 1% State)
5 = 1980 1% Detailed Metro/Nonmetro sample ("E," 1% Urban/rural)
6 = 1980 5% Puerto Rico sample
7 = 1980 1% Puerto Rico sample
8 = 1980 Puerto Rico Urban/Rural sample
9 = 1980 Internal Census sample
1990:
1 = 1990 5% State (5% State)
2 = 1990 1% Metro (1% Metropolitan)
3 = 1990 3%Elderly (3% Elderly)
4 = 1990 1% Flat (1%, derived from State sample)
5 = 1990 1% Labor Market Areas ("L," 1% State)
8 = 1990 Internal Census sample
2000:
1 = 2000 5% Census sample
2 = 2000 1% Census sample (old)
3 = 2000 ACS
4 = 2000 1% Flat (1%, derived from 5% Census sample)
5 = 2000 5% Puerto Rico sample
6 = 2000 1% Puerto Rico sample (old)
7 = 2000 1% Census sample
8 = 2000 1% Puerto Rico sample
2010:
1 = 2010 10% Census sample
2 = 2010 Puerto Rico 10% sample
ACS/PRCS 2001-Present
1 = ACS sample (except 2000 - see above)
2 = PRCS sample (available starting in 2005)
3 = ACS 3-Year sample (available starting with the 2005-2007 period)
4 = PRCS 3-Year sample (available starting with the 2005-2007 period)
5 = ACS 5-Year sample (available starting with the 2005-2009 period)
6 = PRCS 5-Year sample (available starting with the 2005-2009 period)

Comparability

This variable is comparable across years.

Universe

  • 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: All samples
  • 2003: All samples
  • 2002: All samples
  • 2001: All samples
  • 2000: All samples
  • 1990: All samples
  • 1980: All samples
  • 1970: All samples
  • 1960: All samples
  • 1950: All samples
  • 1940: All samples
  • 1930: All samples
  • 1920: All samples
  • 1910: All samples
  • 1900: All samples
  • 1880: All samples
  • 1870: All samples
  • 1860: All samples
  • 1850: All samples
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: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2000: All samples
  • 1990: All samples
  • 1980: All samples
  • 1970: All samples
  • 1930: All samples
  • 1920: All samples
  • 1910: All samples

Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.