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@bluehive/zipcodes


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USA Zip Code Lookups (Data Last Updated April 10th, 2024)

A localized (flatfile) zipcode lookup (USA Only)

USA zip codes from: https://postalpro.usps.com/ZIP_Locale_Detail

Transformed into a JSON object and then wrapped with some helper methods.

Usage

const zipcodes = require('zipcodes');

Zipcode Lookup

const hills = zipcodes.lookup(90210);

{
  zip: '90210',
  latitude: 34.088808,
  longitude: -118.406125,
  city: 'Beverly Hills',
  state: 'CA',
  country: 'US'
}

Distance

This is not driving distance, it's line of sight distance

var dist = zipcodes.distance(62959, 90210); //In Miles
// dist = 1662

var kilo = zipcodes.toKilometers(dist); //Convert to Kilometers
// kilo = 2675

var miles = zipcodes.toMiles(zipcodes.toKilometers(dist)); //Convert to Kilometers, then to miles
// miles = 1662

Lookup By Name

This does not work on the Canada data, the data file doesn't include this much detail.

var l = zipcodes.lookupByName('Cupertino', 'CA');

//Always returns an array, since cities can have multiple zip codes
[
  {
    zip: '95015',
    latitude: 37.323,
    longitude: -122.0527,
    city: 'Cupertino',
    state: 'CA',
    country: 'US'
  }
]

Lookup by Radius

Get all zipcodes within the milage radius of this zipcode

var rad = zipcodes.radius(95014, 50);
// rad.length == 385

[ '93901',
  '93902',
  '93905',
  '93906',
  '93907',
  '93912',
  '93933',
  '93942',
  '93944',
  '93950',
  ...
  '95377',
  '95378',
  '95385',
  '95387',
  '95391' 
]

Zipcode Random

var zipObj = zipcodes.random();

{ 
  zip: '90210',
  latitude: 34.088808,
  longitude: -118.406125,
  city: 'Beverly Hills',
  state: 'CA',
  country: 'US'
}

TODO

Add support for importing into MongoDB or CouchDB to speed up searchs.

Development

The original CSV file that I am using for this data is not included in this repo, but I did wrap up the best way to get the data and how to convert it into the format that this module uses.

To develop with this module, just make it and it will fetch the latest zipcodes and reprocess them.

make

To just fetch and process the zipcodes:

make codes

To run the very simple test suite:

make tests

FAQs

Last updated on 11 Apr 2024

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