It's worth noting that these are approximations of zip code areas, rather than exact zip codes. http://www.census.gov/geo/ZCTA/zcta.html http://www.census.gov/g

It's worth noting that these are approximations of zip code areas, rather than exact zip codes. http://www.census.gov/geo/ZCTA/zcta.html http://www.census.gov/geo/ZCTA/zcta.html - for most reasons, it'll be good enough, though.