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USA Samples
USA Full Count
Puerto Rico

	Default sample from each year
2021	ACS
2020	ACS Uses experimental weights to correct for the effects of the COVID-19 pandemic on the 2020 ACS data collection	ACS 5yr Uses experimental weights to correct for the effects of the COVID-19 pandemic on the 2020 ACS data collection
2019	ACS	ACS 5yr
2018	ACS	ACS 5yr
2017	ACS	ACS 5yr
2016	ACS	ACS 5yr
2015	ACS	ACS 5yr
2014	ACS	ACS 5yr
2013	ACS	ACS 3yr	ACS 5yr
2012	ACS	ACS 3yr	ACS 5yr
2011	ACS	ACS 3yr	ACS 5yr
2010	ACS	ACS 3yr	ACS 5yr	10%
2009	ACS	ACS 3yr	ACS 5yr
2008	ACS	ACS 3yr
2007	ACS	ACS 3yr
2006	ACS
2005	ACS Does not include persons in group quarters.
2004	ACS Does not include persons in group quarters.
2003	ACS Does not include persons in group quarters.
2002	ACS Does not include persons in group quarters.
2001	ACS Does not include persons in group quarters.
2000	ACS Does not include persons in group quarters.	1% old	1% unwt	5%	1%
1990	5% state	1% metro	1% unwt	3% elderly	0.5% LMA
1980	5% state	1% metro	1% urban	1% LMA	1% metro/non-metro
1970	1% state fm1	1% state fm2	1% metro fm1	1% metro fm2	1% neigh fm1	1% neigh fm2
1960	1%	5%
1950	1%
1940	1%
1930	1%	5%
1920	1%
1910	1%	1.4% ovrsmp
1900	1%	5%	1.2% ovrsmp
1880	1%	10%
1870	1%	1.2%
1860	1%	1.2%
1850	1%

Please note that the USA full count samples require special usage terms. Users must agree to these terms before downloading these data.

1940	100%
1930	100%
1920	100%
1910	100%
1900	100%
1880	100%
1870	100% Preliminary data release.
1860	100% Preliminary data release.
1850	100%

	Default sample from each year
2021	PRCS
2020	PRCS 5yr Uses experimental weights to correct for the effects of the COVID-19 pandemic on the 2020 ACS data collection
2019	PRCS	PRCS 5yr
2018	PRCS	PRCS 5yr
2017	PRCS	PRCS 5yr
2016	PRCS	PRCS 5yr
2015	PRCS	PRCS 5yr
2014	PRCS	PRCS 5yr
2013	PRCS	PRCS 3yr	PRCS 5yr
2012	PRCS	PRCS 3yr	PRCS 5yr
2011	PRCS	PRCS 3yr	PRCS 5yr
2010	PRCS	PRCS 3yr	PRCS 5yr	PR 10%
2009	PRCS	PRCS 3yr	PRCS 5yr
2008	PRCS	PRCS 3yr
2007	PRCS	PRCS 3yr
2006	PRCS
2005	PRCS Does not include persons in group quarters.
2000	PR 5%	PR 1% old	PR 1%
1990	PR 5%	PR 1%
1980	PR 5%	PR 1%
1970	PR 5% state	PR 1% metro	PR 1% neigh
1930	PR 5%
1920	PR 12%
1910	PR 12%

You are viewing this message because you have selected the ACS 2020 PUMS 1-year file.

Please note that the ACS 2020 PUMS 1-year file uses experimental weights to account for the effects of the COVID-19 pandemic on the ACS 2020 data products.

Users should proceed with caution when using the ACS 2020 PUMS 1-year file and the Census Bureau advises against comparing it to other ACS PUMS sample years.

For more information about this file and the corresponding experimental weights, please visit this page: ACS and COVID-19: Guidance for Using the PUMS with Experimental Weights

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Supported by: National Institutes of Health, National Science Foundation, Ancestry, Stat/Transfer, and University of Minnesota.