Variance Replicate Tables Documentation

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Variance Replicate Tables Documentation

Variance Replicate Estimate Tables include estimates, margins of error, and 80 variance replicates for selected American Community Survey 5-year Detailed Tables. The tables are intended for advanced users who are adding ACS data within a table or between geographies. Users can calculate margins of error for aggregated data by using the variance replicates. Unlike available approximation formulas, this method results in an exact margin of error by using the covariance term.

To access the tables, please visit the Variance Replicate Tables data page.

2018

Technical Documentation

Contains worked examples and instructions to calculate margins of error for aggregated estimates, percentages, and ratios

2014-2018 Variance Replicate Tables Documentation [<1.0 MB]

2014-2018 Appendix A: Average Weights and k-Values [<1.0 MB]

CSV File for Average Weights [<1.0 MB]

README - Uncompressing Files for VRE Tables [<1.0 MB]

Table and Geography List

Contains a list of tables and types of geographic areas that have variance replicate estimates

2014-2018 Variance Replicate Estimates Table and Geography List [<1.0 MB]

CSV File for Table List and Descriptions [<0.1 MB]

Table Shells and FIPS Codes

For all geographies except the tract and block group level, variance replicate tables are named using the table ID. The tract and block group files are named by table ID + State FIPS code. All published ACS table IDs and table layouts may be found in the Table Shells. The 2-digit FIPS state code and the state name that corresponds to it may be found in the ANSI Codes for States.

Table Shells

Reference File

American National Standards Institute (ANSI) Codes for States

American National Standards Institute (ANSI) Codes for States, the District of Columbia, Puerto Rico, and the Insular Areas of the United States.

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Variance Replicate Tables Documentation

Variance Replicate Tables Documentation

Technical Documentation

Table and Geography List

Table Shells and FIPS Codes

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