GEOID90 (PC format) Download PAGE
Information
GEOID90 ReadMe file
Programs
Binary executable GEOID.EXE
FORTRAN source code GEOID.FOR
The grid filelist (needed when running GEOID.EXE) AREA.PAR
Data
Western CONUS grid (GEOID90W.GEO)
Central CONUS grid (GEOID90C.GEO)
Eastern CONUS grid (GEOID90E.GEO)