Data Format
Home Zip+4 COM vCode explained Data Format Source Code Legacy Downloads


Way Points
Incomplete Data

The Download zip file includes 9 files:

Record count is for the October  2008 data

Zipcode.csv Zipcode, City, State -- Default Zips only 
42,297 records
ZipOther.csv Zipcode, City, State -- All other, non-default zipcodes (Does not include those listed in "NoDefault.csv")
37,997 records
BadZip.csv This contains list of zipcodes that are not valid or no longer in use.  (For reference only)
59,218 records
LatLon.csv Zipcode, Latitude, Longitude, Elevation (Degrees are in decimal degrees, to get Degrees Minutes Seconds -- click here)  NOTE: Elevation can be 0 when unknown.
41,680 records 
County.csv Zipcode, County, Areacode, Time zone, 
 county FIPS, GMT offset, Daylight Savings Time Observed flag
41,680 records
States.csv State Abbreviation, State Name, State FIPS
62 records (Includes Guam, Puerto Rico, etc)
NoDefault.csv This file contains "A" (Acceptable) records that have no associated "D" (default) records.  See vcode for more information.
12 records
AppendZip.csv This is a subset of NoDefault.csv; it includes one record for each zipcode.  This should be appended to zipcode.csv to have a complete "view" of all valid zipcodes.
5 records
Census.csv Contains census data about population data. 
42,238 records
Readme.csv A file describing the files, included here for "completeness"

CSV is readable by Excel, and is a common import format.  Other formats available, on request, with the yearly subscription only.  These other formats can combine the data, and format it how you can best use it. (For example, we can combine Zipcode.csv+appendzip.csv for you.)

Bolded Items are only ones "promised" to be up to date & accurate.  
We try to maintain LatLon & County data as best we can.



(c) 1999- jAssing Consulting -- Contact webmaster@jassing.com for problems