WordPress custom dropdown listings

Populate your data something like this and and you can use Javascript/jQuery to achieve this.

<select class="apple_store_location">
<option value="1" data-url="http://mysiteurl.com/1"> Place 1</option>
<option value="2" data-url="http://mysiteurl.com/2"> Place 2</option>
<option value="3" data-url="http://mysiteurl.com/3"> Place 3</option>
<option value="4" data-url="http://mysiteurl.com/4"> Place 4</option>
<option value="5" data-url="http://mysiteurl.com/5"> Place 5</option>
<option value="6" data-url="http://mysiteurl.com/6"> Place 6</option>
<option value="7" data-url="http://mysiteurl.com/7"> Place 7</option>
</select>

<script>
//Using jQuery
jQuery(document).ready(function($) {
    $('.apple_store_location').change(takeMe2URL);
    function takeMe2URL() {
       var new_url =  $('option',this).data('url');
       window.location.replace(new_url);
    }
});

</script>