Coloque o preenchimento automático mostrando apenas a cidade e o país

<html>
<head>
<style type="text/css">
   body {
         font-family: sans-serif;
         font-size: 14px;
   }
</style>

<title>Google Maps JavaScript API v3 Example: Places Autocomplete</title>
<script src="https://maps.googleapis.com/maps/api/js?sensor=false&libraries=places®ion=in" type="text/javascript"></script>
<script type="text/javascript">
   function initialize() {
      var input = document.getElementById('searchTextField');
      var autocomplete = new google.maps.places.Autocomplete(input);
   }
   google.maps.event.addDomListener(window, 'load', initialize);
</script>

</head>
<body>
   <div>
      <input id="searchTextField" type="text" size="50" placeholder="Enter a location" autocomplete="on">
   </div>
</body>
</html>
Difficult Dunlin