Synopsis	ZIPFIP is both a set of databases containing census and locational information at the ZIP (ZIP code) and FIPS (county) level, and a program by which these data sets may be accessed and manipulated. It has several useful features, including: editing and displaying data; defining spatial boundaries known as market areas; determining distances between any two sites in the lower 48 States; and aggregating observations. ZIPFIP can extract commonly used census information by county or ZIP code, and correct for missing values.
Downloads & documents	Download the latest version of ZIPFIP (last updated on 11:13:00 19 Jan 2005, 16.85M). Installation and getting started A somewhat dated short manual A few other GIS related sites
On-line ZIPFIP	Lookup a FIPS or ZIP code Extract Census info for a set of a FIPS or ZIP codes
This document last modified at 10:06a, on 22 Jan 2005. Contact: Daniel Hellerstein, 202 694-5613