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Editorial Team
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Asked: 2026-05-24T00:07:33+00:00

I am using google maps geocoder to geocode a zipcode and I want it

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I am using google maps geocoder to geocode a zipcode and I want it to return the state that the zipcode is located in and store it in the variable “local”. I am getting an error indicating that local is undefined. Why?

see code below:

var address=document.getElementById("address").value;
var radius=document.getElementById("radius").value;
var latitude=40;
var longitude=0;
var local;
geocoder.geocode( { 'address': address}, function(results, status){
if (status==google.maps.GeocoderStatus.OK){
latlng=(results[0].geometry.location);
latitude=latlng.lat();
longitude=latlng.lng();
//store the state abbreviation in the variable local
local=results[0].address_components.types.adminstrative_area_level_1;
}   

else{
    alert("Geocode was not successful for the following reason: " + status);
}
});
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1 Answer

  1. Editorial Team

    I think the issue is actually that address_components will likely have more than one component, and the order isn’t necessarily the same for all zip codes. So you have to iterate through the results to find the correct one. 

    <html xmlns="http://www.w3.org/1999/xhtml">
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var geocoder = new google.maps.Geocoder();
function test()
{
    var address=document.getElementById("address").value;
    var local = document.getElementById("local");
    var latitude=40;
    var longitude=0;
    geocoder.geocode( { 'address': address}, function(results, status)
    {
        if (status==google.maps.GeocoderStatus.OK)
        {
            latlng=(results[0].geometry.location);
            latitude=latlng.lat();
            longitude=latlng.lng();
            //store the state abbreviation in the variable local
            for(var ix=0; ix< results[0].address_components.length; ix++)
            {
                if (results[0].address_components[ix].types[0] == "administrative_area_level_1")
                {
                    local.value=results[0].address_components[ix].short_name;
                }
            }
        }
        else
        {
            alert("Geocode was not successful for the following reason: " + status);
        }
    });
}
</script>
</head>
<body>
    <input type='text' id='address' value='84102' />
    <input type='text' id='local' value='' />
    <a href='#' onclick="test();" >try</a>
</body>
</html>
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