Richer Yang

This plubin is based on <a href="https://tw.wordpress.org/plugins/wc-city-select/" rel="nofollow ugc">WC City Select</a>
WooCommerce uses a text input for the customers to enter the city or town. 
With this plugin you can provide a list of cities to be shown as a select dropdown.
This will be shown in checkout pages, edit addresses pages and shipping calculator if it’s configured that way.
After selected the city or town, auto set the postcode number if is defined.
<h3>How to add cities</h3>
A list of cities can be added in your theme functions.php file.
Use <code>ry_wc_city_select_cities</code> filter to load your cities. 
This is done similarly to <a href="https://docs.woocommerce.com/document/addmodify-states/" rel="nofollow ugc">Add/Modify States</a>. 
It should be added on your functions.php or a custom plugin.
<pre><code>add_filter( 'ry_wc_city_select_cities', 'my_cities' );
/**
 * Replace XX with the country code. Instead of YYY, ZZZ use actual state codes.
 * The City list can list of city name with postcode or just city name.
 */
function my_cities( $cities ) {
 $cities['XX'] = array(
 'YYY' => array( // city name with postcoe
 ['City', '100'],
 ['Another City', '101']
 ),
 'ZZZ' => array( // just city name
 'City 3',
 'City 4'
 )
 );
 return $cities;
}
</code></pre>

RY City Select for WooCommerce

Show a dropdown select as the cities input on WooCommerce. Auto set the postcode for selected city.

C-Metric

Dhaval Kapadane

Janki Bhalodiya

The “Add Region by Country for WooCommerce” plugin allows you to easily add and manage custom regions for specific countries within your WooCommerce store. After activation, navigate to the WooCommerce menu to configure regions through a straightforward interface. Custom regions will then be displayed on the checkout page, enhancing the shopping experience by accommodating regional variations.
Features of the plugin include:
<ul>
<li>Provide solution for add new region from any allowed country on WooCommerce. * </li>
<li>Simple-configuration – just install,setup and enjoy.</li>
</ul>

Add Region by Country for WooCommerce

Add Region by Country WooCommerce Add-on plug-in.

RY City Select for WooCommerce vs Add Region by Country for WooCommerce