如何通过邮政编码确定美国郡？

Is it possible to implement a function on clientside in javascript to use it like this:

是否可以在javascript中在客户端上实现一个函数，以便像这样使用它：

var county = get_county(zip_code);

I mean is it possible to do it online by script? Or I have to dig some database? Or I have to buy it?

我的意思是可以通过脚本在线完成吗？或者我必须挖一些数据库？或者我必须买它？

Any help is appreciated!

任何帮助表示赞赏！

P.S.
By the help of Dyrandz Famador, I did this funciton for GAS:

附：在Dyrandz Famador的帮助下，我为GAS做了这个功能：

function get_county(zip) {
 var county, response, result, adresses, i, j, n, type;
 response = Maps.newGeocoder().geocode(zip);
 for (i = 0; i < response.results.length; i++) {
   result = response.results[i];
   adresses = result.address_components;
   n = adresses.length;
   for (j=0;j<n;j++) {
     type = adresses[j].types[0];
     if (type == 'locality') county = (adresses[j].long_name);
     if (type == 'administrative_area_level_2')   {county =(adresses[j].long_name);}
   }
 }
 return (county);
}

4 个解决方案

#1

you can use the Google Maps API to Get Locations from Zip Codes

您可以使用Google Maps API从邮政编码中获取地点信息

Google offers many API’s, among them is the Maps API. In this example we’ll show all the code necessary to hit Google with a zip code to get the location in the form of City, State and Country.

Google提供了许多API，其中包括Maps API。在此示例中，我们将显示使用邮政编码访问Google以获取城市，州和国家/地区形式所需的所有代码。

First thing to do is to reference Google’s Map API:

首先要做的是参考Google的Map API：

<script language="javascript" src="https://maps.google.com/maps/api/js?sensor=false"></script>

Next is a little form used to enter your zip code:

接下来是用于输入邮政编码的小表格：

<form>
zip: <input type="text" name="zip" value="46032"> <a href="#" onclick="getLocation()">Get Address</a>
</form>

You can see that I have a link which fires a function called “getLocation()” – below you’ll find that function and the related code:

你可以看到我有一个激活名为“getLocation（）”的函数的链接 - 下面你会发现该函数和相关的代码：

...
<script language="javascript">
function getLocation(){
  getAddressInfoByZip(document.forms[0].zip.value);
}

function response(obj){
  console.log(obj);
}
function getAddressInfoByZip(zip){
  if(zip.length >= 5 && typeof google != 'undefined'){
    var addr = {};
    var geocoder = new google.maps.Geocoder();
    geocoder.geocode({ 'address': zip }, function(results, status){
      if (status == google.maps.GeocoderStatus.OK){
        if (results.length >= 1) {
      for (var ii = 0; ii < results[0].address_components.length; ii++){
        var street_number = route = street = city = state = zipcode = country = formatted_address = '';
        var types = results[0].address_components[ii].types.join(",");
        if (types == "street_number"){
          addr.street_number = results[0].address_components[ii].long_name;
        }
        if (types == "route" || types == "point_of_interest,establishment"){
          addr.route = results[0].address_components[ii].long_name;
        }
        if (types == "sublocality,political" || types == "locality,political" || types == "neighborhood,political" || types == "administrative_area_level_3,political"){
          addr.city = (city == '' || types == "locality,political") ? results[0].address_components[ii].long_name : city;
        }
        if (types == "administrative_area_level_1,political"){
          addr.state = results[0].address_components[ii].short_name;
        }
        if (types == "postal_code" || types == "postal_code_prefix,postal_code"){
          addr.zipcode = results[0].address_components[ii].long_name;
        }
        if (types == "country,political"){
          addr.country = results[0].address_components[ii].long_name;
        }
      }
      addr.success = true;
      for (name in addr){
          console.log('### google maps api ### ' + name + ': ' + addr[name] );
      }
      response(addr);
        } else {
          response({success:false});
        }
      } else {
        response({success:false});
      }
    });
  } else {
    response({success:false});
  }
}
</script>

...

Thats it – open up the console in Chrome and notice the output as you enter different zip codes.

多数民众赞成 - 在Chrome中打开控制台并在输入不同的邮政编码时注意输出。

get it from here: http://rickluna.com/wp/2012/09/using-the-google-maps-api-to-get-locations-from-zip-codes/

从这里得到它：http：//rickluna.com/wp/2012/09/using-the-google-maps-api-to-get-locations-from-zip-codes/

#2

you need to know the mapping of zip_code and country,

你需要知道zip_code和country的映射，

I've found a github project for this:

我找到了一个github项目：

https://github.com/jgoodall/us-maps

https://github.com/jgoodall/us-maps

once you get json mapping by instruction, you can implement the function you want.

一旦通过指令获得json映射，就可以实现所需的功能。

#3

Here is a nice geographic database API from the US government:
https://www.sba.gov/about-sba/sba-performance/sba-data-store/web-service-api/us-city-and-county-web-data-api#county-state

这是来自美国*的一个很好的地理数据库API：https：//www.sba.gov/about-sba/sba-performance/sba-data-store/web-service-api/us-city-and-county-网络数据的API＃县状态

The API yields all counties and states information, however it doesn't seem to have ZIP codes included. Using Google Geocoding API might be easier.

API会生成所有县和州信息，但它似乎没有包含邮政编码。使用Google地理编码API可能会更容易。

#4

This is one way you could grab the address, city, state and/or zip from pretty much any location input, such as Santa Monica, CA or 90405. Keep in mind you can't always get all of these variables back unless you are very specific in your request.

这是您可以从几乎任何位置输入（例如Santa Monica，CA或90405）获取地址，城市，州和/或邮政编码的一种方式。请记住，除非您是这样，否则无法始终获得所有这些变量在您的请求中非常具体。

function getLocationInfo(){

    var location = $('#location').val();
    var geocoder = new google.maps.Geocoder();

    geocoder.geocode({ 'address': location }, function (result, status) {

    var address = '';
    var streetNumber = '';
    var streetName = '';
    var cityName = '';
    var stateName = '';
    var zipCode = '';

    var addressComponent = result[0]['address_components'];

    // find street number

    var streetNumberQueryable = $.grep(addressComponent, function (x) {
        return $.inArray('street_number', x.types) != -1;
    });

    if (streetNumberQueryable.length) {
        streetNumber = streetNumberQueryable[0]['long_name'];
    }

    // find street name

    var streetNameQueryable = $.grep(addressComponent, function (x) {
        return $.inArray('route', x.types) != -1;
    });

    if (streetNameQueryable.length) {
        streetName = streetNameQueryable[0]['long_name'];
    }

    // find city data

    var cityQueryable = $.grep(addressComponent, function (x) {
        return $.inArray('locality', x.types) != -1;
    });

    if (cityQueryable.length) {
        cityName = cityQueryable[0]['long_name'];
    }

    // find state data

    var stateQueryable = $.grep(addressComponent, function (x) {
        return $.inArray('administrative_area_level_1', x.types) != -1;
    });

    if (stateQueryable.length) {
        stateName = stateQueryable[0]['long_name'];
    }

    // find zip data

    var zipQueryable = $.grep(addressComponent, function (x) {
        return $.inArray('postal_code', x.types) != -1;
    });

    if (zipQueryable.length) {
        zipCode = zipQueryable[0]['long_name'];
    }

    address = streetNumber + ' ' + streetName;

    console.log(address);
    console.log(cityName);
    console.log(stateName);
    console.log(zipCode);

    });

}