WA:http://www.naco.org/template.cfm?section=find_a_county&template=/cffiles/counties/state.cfm&statecode=wa
OR: http://www.naco.org/template.cfm?section=find_a_county&template=/cffiles/counties/state.cfm&statecode=or
CA: http://www.naco.org/template.cfm?section=find_a_county&template=/cffiles/counties/state.cfm&statecode=ca
ZIP + 4 Code Look-up
Requires company name, P.O. Box or street address, plus either the ZIP code or the city and
state to find the "ZIP+4" code. Includes county name, carrier route number and delivery point.
http://www.usps.com/ncsc/lookups/lookup_zip+4.html
Postal Abbreviations
Official Postal Abbreviations, United States Postal Service
Provides abbreviations for states, military "states" and street suffixes (i.e., "Avenue" should be
abbreviated "AVE", not "AVN".)
http://www.usps.com/ncsc/lookups/usps_abbreviations.html
Find Area Codes
USA Area Code Maps - All States
http://www.nanpa.com/number_resource_info/area_code_maps.html
Canada Area Code Map
http://www.cnac.ca/npa_codes/npa_map.htm
City / ZIP Reverse Look-up
WA: http://www.myzipcodemap.com/state.php?state=Washington
OR: http://www.myzipcodemap.com/state.php?state=Oregon
CA: http://www.myzipcodemap.com/state.php?state=California
United States Postal Service
Find City and State by ZIP Code (or ZIP Code by City and State).
http://zip4.usps.com/zip4/citytown_zip.jsp
ZIP Info
Find City and State by Zip Code (or Zip Code by City and State). Also provides area code,
county name, time zone, latitude and longitude, FIPS code and MSA/PMSA.
http://www.zipinfo.com/search/zipcode.htm