DOI: 10.6077/j5/pkbnnh
title: American Community Survey, 2005-2007: 3-year Public Use Microdata Sample

description: &lt;p&gt;The American Community Survey (ACS) is a part of the Decennial Census Program, and is designed to produce critical information about the characteristics of local communities. The ACS publishes social, housing, and economic characteristics for demographic groups covering a broad spectrum of geographic areas in the United States and Puerto Rico. Every year the ACS supports the release of single-year estimates for geographic areas with populations of 65,000 or more. Demographic variables include sex, age, relationship, households by type, race, and Hispanic origin. Social characteristics variables include school enrollment, educational attainment, marital status, fertility, grandparents caring for children, veteran status, disability status, residence one year ago, place of birth, United States citizenship status, year of entry, world region of birth of foreign born, language spoken at home, and ancestry. Variables focusing on economic characteristics include employment status, commuting to work, occupation, industry, class of worker, income and benefits, and poverty status. Variables focusing on housing characteristics include occupancy, units in structure, year structure was built, number of rooms, number of bedrooms, housing tenure, year householder moved into unit, vehicles available, house heating fuel, utility costs, occupants per room, housing value, and mortgage status. The American Community Survey is conducted under the authority of Title 13, United States Code, Sections 141 and 193, and response is mandatory. (Source: ICPSR, retrieved 06/29/2011)&lt;/p&gt;
description: American Community Survey: Public Use Microdata Sample
description: version_history: Version 2 - added PUMS Accuracy of the Data documentation file. 8 JUN 2021 -jb; 
collection_notes: The 2005-2007 PUMS sample is the same sample found in each of the 1-year PUMS files for the years 2005, 2006 and 2007. It contains three percent of the housing units and about two percent of the GQ persons in the United States, District of Columbia, and Puerto Rico weighted to represent the average population during three years. The full ACS sample design is not described here. Information about the sample design and accuracy of the full ACS sample is found in any of the ACS 1-Year Accuracy documents or in the 3-Year Accuracy document found at: http://www.census.gov/acs/www/UseData/Accuracy/Accuracy1.htm
Tables 1 and 2 show PUMS sample sizes next to the corresponding ACS estimates by state, D.C., and Puerto Rico. Table 1 shows housing units and Table 2 shows GQ persons. (See 2532-cph-301(2007)accuracy.pdf for tables)

The sampling for HUs (and persons from HUs) was performed independently on the ACS samples of HUs for each of the years 2005, 2006 and 2007, as follows:
1.Records of HUs were sorted by: PUMA, ACS weighting area, interview mode, type of vacant, tenure, building type, household type, householder demographics (race, Hispanic origin, sex and age), county, tract, and housing unit weight.
2. Systematic sampling was applied as described below:
 a. Within each state, a random number is chosen between zero and the sampling interval. A counter is initialized with the random number.
 b. At each record, the value of the counter is incremented by one and compared to the sampling interval.
 i. If the counter’s new value is greater than the sampling interval, the record is selected for the PUMS. The counter is decreased by the sampling interval with the new value passed to the next record.
 ii. If the counter is less than the sampling interval, the record is not selected for the PUMS and the value of the counter is passed to the next record without altering its value.
3. All HUs selected for PUMS were placed in the PUMS HU sample file.
4. The PUMS HU sample file was matched to the ACS sample of persons. All persons in selected HUs were placed in the PUMS person sample.

The sampling for GQs was originally performed on the ACS sample of GQ persons for each of the years 2006 and 2007 as follows:
1. GQ persons were sorted by size of GQ (large vs. small), type of GQ, PUMA, demographics (race, Hispanic origin, sex and age), county, tract, and GQ person weight.
2. Systematic sampling was applied as described above under HUs.
3. All selected GQ persons were added to the PUMS person sample. A placeholder record was also placed in the PUMS HU file for each PUMS GQ person.

Collection move varied, mailed forms were followed up with CATI and CAPI phases.