Assuming you want to bind one of your zipcode objects to a property, eg
{zipcode: '641515'}
and your actual data looks like this
[{'zipcode':'6451105'},{'zipcode':'641515'},{'zipcode':'564555'}]
this should suffice
<select name="zipCode" ng-model="zipCode"
ng-options="zipCode.zipcode for zipCode in zipCodes"></select>
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solved How to display data in select box using angularJS? [closed]