3-digit-zip-lookup

API to look up the lat/long of a 3-digit zip code. Also supports 4 and 5 digits, as well. Keeps a moderately sized in-memory cache to optimize lookup speed, as well

Routes are GET: /US and /MX

ex. /US?postalCode=55106 /MX?postalCode=00810

Sample return data

{ "country":"US", "postalCode":"55106", "lat":44.963547, "lon":-93.049522, "items":[{"postalCode":"55106","lat":"44.963547","lng":"-93.049522"}], "cached":"false }

ex. /US?postalCode=551

{ "country":"US", "postalCode":"551", "lat":44.94760753125, "lon":-93.10116018750003, "items":[ {"postalCode":"55101","lat":"44.951483","lng":"-93.090649"}, {"postalCode":"55102","lat":"44.931901","lng":"-93.121291"}, {"postalCode":"55103","lat":"44.964258","lng":"-93.122627"}, {"postalCode":"55104","lat":"44.953894","lng":"-93.164446"}, {"postalCode":"55105","lat":"44.937180","lng":"-93.168279"}, {"postalCode":"55106","lat":"44.963547","lng":"-93.049522"}, {"postalCode":"55107","lat":"44.931070","lng":"-93.079172"}, {"postalCode":"55108","lat":"44.982482","lng":"-93.174880"}, {"postalCode":"55109","lat":"45.014551","lng":"-93.025535"}, {"postalCode":"55110","lat":"45.089912","lng":"-93.005988"}, {"postalCode":"55111","lat":"44.878385","lng":"-93.196359"}, {"postalCode":"55112","lat":"45.081866","lng":"-93.190493"}, {"postalCode":"55113","lat":"45.012196","lng":"-93.151186"}, {"postalCode":"55114","lat":"44.966690","lng":"-93.195072"}, {"postalCode":"55115","lat":"45.067903","lng":"-92.953441"}, {"postalCode":"55116","lat":"44.910719","lng":"-93.169581"}, {"postalCode":"55117","lat":"45.003562","lng":"-93.091280"}, {"postalCode":"55118","lat":"44.894315","lng":"-93.100947"}, {"postalCode":"55119","lat":"44.937421","lng":"-93.007402"}, {"postalCode":"55120","lat":"44.874984","lng":"-93.152093"}, {"postalCode":"55121","lat":"44.846541","lng":"-93.154935"}, {"postalCode":"55122","lat":"44.806810","lng":"-93.201497"}, {"postalCode":"55123","lat":"44.808933","lng":"-93.138449"}, {"postalCode":"55124","lat":"44.739462","lng":"-93.193842"}, {"postalCode":"55125","lat":"44.918031","lng":"-92.938277"}, {"postalCode":"55126","lat":"45.084450","lng":"-93.132817"}, {"postalCode":"55127","lat":"45.083907","lng":"-93.080233"}, {"postalCode":"55128","lat":"44.987546","lng":"-92.963553"}, {"postalCode":"55129","lat":"44.883474","lng":"-92.892768"}, {"postalCode":"55130","lat":"44.973302","lng":"-93.082410"}, {"postalCode":"55150","lat":"44.886640","lng":"-93.165422"}, {"postalCode":"55155","lat":"44.956026","lng":"-93.082680"}], "cached":"false"}

Warning

Passing a lat/long that is not necessarily associated with a valid geographic space will likely cause issues with 3rd party providers that expect valid lat/longs