Below is a list of helpful references, including the codes we use in our
files.
Data Field Code Definitions
Birth Place Codes (txt)
This file has been zipped (compressed) to make downloading more efficient.
Demographic Codes for PDI 2026 (PDF)
Demographic Codes (PDF) – Polling Samples
County Codes (PDF)
Counties are numbered alphabetically (01-58). See Demographic Codes (PDF) for a list of county codes.
District-code/title conversion (txt)
District-code/title conversion (xls)
This file contains a list of codes and descriptions for every city, community college district, and school district in the state. This file has been zipped (compressed) to make downloading more efficient