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Topics
Data & Maps
Surveys & Programs
Resource Library
Guidance for Geography Users
Guidance for Geography Users
In this section you will find information to help you understand the products and references found in other sections. We describe the what, why, and how of Census geography.
Hierarchy Diagrams
Diagrams showing how levels of geography relate to one another.
About Geographic Areas
Detailed current and historical definitions, delineation information, lists and data files, and links to other products related to selected types of geography
TIGER Data Products Guide
Help determining which TIGER Product to use.
Understanding Geographic Identifiers (GEOIDs)
What geographic identifiers are, how they are formed and what they are used for plus details on the differences between FIPS and GNIS codes
Page Last Revised - November 22, 2021
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