zipcode: data.frame of city, state, latitude, and longitude for U.S....
In zipcode: U.S. ZIP Code database for geocoding

Description Usage Format Details Source References Examples

This data.frame contains city, state, latitude, and longitude for U.S. ZIP codes from the CivicSpace Database (August 2004) augmented by Daniel Coven's federalgovernmentzipcodes.us web site (updated on January 22, 2012).

1	data(zipcode)

A data frame with 44,336 observations on the following 5 variables.

zip: a character vector
city: a character vector
state: a character vector
latitude: a numeric vector
longitude: a numeric vector

Please note that CivicSpace's outdated timezone-related fields have been removed with the 1.0 release of this package. The original CivicSpace database is available in its original form in this package's zipcode.civicspace data.frame.

Daniel Coven's federalgovernmentzipcodes.us web site and the CivicSpace US ZIP Code Database written by Schuyler Erle <schuyler@geocoder.us>, 5 August 2004. Original CSV files available from http://federalgovernmentzipcodes.us/free-zipcode-database-Primary.csv, http://www.boutell.com/zipcodes/, and http://mappinghacks.com/data/.

Data packaged for R by Jeffrey Breen <jeffrey@atmosgrp.com>

data(zipcode)

subset(zipcode, city=='Cambridge'&state=='MA')
#       zip      city state latitude longitude
# 701 02138 Cambridge    MA 42.37915 -71.12803
# 702 02139 Cambridge    MA 42.36435 -71.10431
# 703 02140 Cambridge    MA 42.39333 -71.12837
# 704 02141 Cambridge    MA 42.37052 -71.08443
# 705 02142 Cambridge    MA 42.36230 -71.08412
# 776 02238 Cambridge    MA 42.44640 -71.45941
# 777 02239 Cambridge    MA 42.44640 -71.45941

      zip      city state latitude longitude
701 02138 Cambridge    MA 42.37915 -71.12803
702 02139 Cambridge    MA 42.36435 -71.10431
703 02140 Cambridge    MA 42.39333 -71.12837
704 02141 Cambridge    MA 42.37052 -71.08443
705 02142 Cambridge    MA 42.36230 -71.08412
776 02238 Cambridge    MA 42.44640 -71.45941
777 02239 Cambridge    MA 42.44640 -71.45941