The Topological Integrated Geographic Encoding and Referencing (TIGER)/ZIP + 4 File is a useful tool that helps mailers explore new markets by gathering and manipulating data to uncover potential business areas.

The TIGER/ZIP + 4 File is a bridge file that allows mailers to access other information using the ZIP + 4 codes they already have associated with their addresses. This file provides demographers, market researchers, and offers a method to relate ZIP + 4 coded address lists to Census Bureau demographic data. Now mailers can acquire Census Bureau information on latitude, longitude, tract, Standard Metropolitan Statistical Area (SMSA), etc. These files make an excellent base for a geographic information system.

Possible uses:

• Mailers who develop a new product ideally suited for customers living in a particular part of the United States can reach beyond their established customer base and increase market share through TIGER/ZIP + 4 queries. Mailers can use the queries to extrapolate the target market from the Census Bureau data, derive the ZIP Codes of potential customers, and prepare mail accordingly.
• Mailers can process the ZIP Codes of their address lists through the TIGER/ZIP + 4 File to extract client data to focus on their clients' needs.

For detailed information on TIGER/ZIP + 4, download the Technical Guide or contact the National Customer Support Center (NCSC) at 1-800-238-3150. Use the link below to download a sample file.