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Re^3: Geographical Map

by delegatrix (Scribe)
on Nov 10, 2004 at 22:07 UTC ( #406816=note: print w/replies, xml ) Need Help??

in reply to Re^2: Geographical Map
in thread Geographical Map

A word of caution - ZIP codes are not meant for mapping - they are meant for delivering mail. You're better off geocoding with FIPS codes. You can check out Census Bureau mapping resources at

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Re^4: Geographical Map
by Anonymous Monk on Nov 11, 2004 at 14:38 UTC
    Take a look at for some great geocoding in action.
Re^4: Geographical Map
by Anonymous Monk on Nov 11, 2004 at 15:22 UTC
    For geocoding / user mapping, it's worth looking at: Geo::TigerLine Geo::Coder::US ( and ) for shape drawing and projection, check out: Geo::GDAL Geo::Shapelib (which has a much nicer API than Geo::Shapefile) UMN MapServer rocks, and talks to free GIS backends like PostGIS. GRASS walks all over ESRI; hopefully suggests that you have no need to buy ESRI products. xoxo
Re^4: Geographical Map
by belg4mit (Prior) on Nov 25, 2004 at 07:07 UTC
    Here here! I've mentioned many a time in the CB that zip codes are (not necessarily contiguous) polylines in 3 space, not polygons. ZCTAs are also usable for this kid of thing -- Zip Code Tabulation Areas are the Census Bureau's solution to the hairy nature of zip codes. Other census ploygons such as block groups are good too.

    I'm not belgian but I play one on TV.

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