Code Lists, Definitions, and Accuracy
Code Lists, Definitions, and Accuracy
View the detailed codes and definitions for variables, statistical testing, and an explanation of sample design, methodology, and accuracy for the American Community Survey.
2019
Code Lists
Detailed codes for variables that contain a large number of coded responses, such as ancestry and occupation
Subject Definitions
Definitions of population and housing variables to help you understand the results of the American Community Survey
Group Quarters Definitions
Definitions for classifying group living situations according to the type of housing and/or services provided
Comparison Guidance
Learn more about comparing the 2019 ACS with Census 2000, 2010 Census, and 5-year to 5-year estimates.
Table Shells and Table List
Learn more about the layout of the tables and information about tables.
Instructions for Applying Statistical Testing
Basic instructions for obtaining the ACS standard errors needed to do manual statistical testing.
Worked Examples for Approximating Margins of Error
Worked Examples on approximating standard errors for various types of ACS estimates.
Statistical Testing Tool
Spreadsheet to quickly test whether ACS estimates are statistically different from one another.
Accuracy of the Data
A basic explanation of the sample design, estimation methodology, and accuracy of the data.