Work with interactive mapping tools from across the Census Bureau.
Collection of audio features and sound bites.
The Census Bureau packages data and information into easy-to-understand visuals.
Browse Census Bureau images.
Read briefs and reports from Census Bureau experts.
Watch Census Bureau vignettes, testimonials, and video files.
Read research analyses from Census Bureau experts.
Developer portal to access services and documentation for the Census Bureau's APIs.
Explore Census Bureau data on your mobile device with interactive tools.
Find a multitude of DVDs, CDs and publications in print by topic.
These external sites provide more data.
Download extraction tools to help you get the in-depth data you need.
Explore Census data with interactive visualizations covering a broad range of topics.
How we provide the best mix of timeliness, relevancy, quality, and cost for the data we collect.
Learn about other opportunities to collaborate with us.
Explore the rich historical background of an organization with roots almost as old as the nation.
Explore prospective positions available at the Census Bureau.
Explore Census programs targeted for particular needs.
Discover the latest in Census Bureau data releases, reports, and events.
The Census Bureau's Director writes on how we measure America's people, places and economy.
Find interesting and quirky statistics regarding national celebrations and major events.
Listen to audio files on fun facts, historical figures, and celebrations of the month.
Find media toolkits, advisories, and all the latest Census news.
See what's coming up in releases and reports.
American Community Survey, group quarters, small area estimation, imputation, cluster analysis
The American Community Survey (ACS) sampling procedure for group quarters facilities is designed to obtain state-level estimates. However, estimates for the total resident population - household and group quarters residents combined – are published at the census tract and county levels as well. A consequence of the sampling procedure is that often little to no group quarters data are collected for small areas. To improve estimates at lower levels of geography, four imputation procedures are proposed. The objective is to obtain, through sampling or imputation, county by major type group representation for 1- and 3-year estimates and tract by major type group representation for 5-year estimates. Entire person records are imputed, using the sampled group quarters records, into areas with little sample coverage. Donors are chosen based either on geographic proximity or the similarity of the surrounding housing population. To evaluate each imputation procedure, a group quarters population is simulated using Census 2000 short-form data. From this population, twenty-five independent ACS samples are drawn and each imputation procedure is applied to the simulated samples. The resulting 1-, 3-, and 5-year imputation-based estimates of basic demographic variables are compared to the designbased estimates and to the simulated population values. The bias of the imputation-based estimates is found to be larger than the design-based estimates, but the variance is smaller.
Chandra Erdman and Chaitra H. Nagaraja. (2010). Imputation Procedures for American Community Survey Group Quarters Small Area Estimation. Statistical Research Division Research Report Series (Statistics #2010-09). U.S. Census Bureau. Available online at <http://www.census.gov/srd/papers/pdf/rrs2010-09.pdf>.
This symbol indicates a link to a non-government web site. Our linking to these sites does not constitute an endorsement of any products, services or the information found on them. Once you link to another site you are subject to the policies of the new site.