diff --git addressfield/addressfield.module addressfield/addressfield.module
index 177d92b..cf33100 100644
--- addressfield/addressfield.module
+++ addressfield/addressfield.module
@@ -364,6 +364,7 @@ function addressfield_field_widget_info() {
     'field types' => array('addressfield'),
     'settings' => array(
       'available_countries' => array(),
+      'preferred_countries' => '',
       'format_handlers' => array('address'),
     ),
   );
@@ -389,6 +390,12 @@ function addressfield_field_widget_settings_form($field, $instance) {
       '#default_value' => $settings['available_countries'],
     );
 
+    $form['preferred_countries'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Preferred countries'),
+      '#description' => t('These countries will appear at the top of the list. Enter one country code per line.'),
+      '#default_value' => $settings['preferred_countries'],
+    );
     $form['format_handlers'] = array(
       '#type' => 'checkboxes',
       '#title' => t('Format handlers'),
@@ -716,6 +723,7 @@ function _addressfield_country_options_list($field = NULL, $instance = NULL) {
   require_once DRUPAL_ROOT . '/includes/locale.inc';
 
   $countries = country_get_list();
+  $preferred_countries = array_keys($countries);
 
   if (isset($field)) {
     // If the instance is not specified, loop against all the instances of the field.
@@ -741,7 +749,45 @@ function _addressfield_country_options_list($field = NULL, $instance = NULL) {
         break;
       }
     }
+
+    // Get preferred countries.
+    foreach ($instances as $instance) {
+      if (!empty($instance['widget']['settings']['preferred_countries'])) {
+        $preferred_countries = array_intersect($preferred_countries, explode("\r\n", $instance['widget']['settings']['preferred_countries']));
+      }
+    }
+  }
+
+  // Sort countries list so preferred countries are at the top.
+  if (!empty($preferred_countries)) {
+    $countries = addressfield_sort_countries($countries, $preferred_countries);
   }
 
   return $countries;
 }
+
+
+/**
+ * Place the preferred countries at the top of the list.
+ *
+ * @param $countries
+ *   List of countries keyed by country code.
+ * @param $preferred_countries
+ *   Array of country codes which should appear at the top of the list.
+ */
+function addressfield_sort_countries($countries, $preferred_countries) {
+  $top = array();
+
+  // Loop through the preferred countries, adding them to the $top array and
+  // removing them from the main list.
+  foreach ($preferred_countries as $code) {
+    $top[$code] = $countries[$code];
+    unset($countries[$code]);
+  }
+
+  // Merge the two parts together.
+  $merged = array_merge($top, $countries);
+
+  return $merged;
+}
+