Woocommerce country registration field in my account page not working

I need this too 🙂

I encountered the same scenario a while ago and manage to solve by doing what is directed in
this site mentioned by OP with some modification to add the billing_country in the registration page.
To display the country in registration page:

function wooc_extra_register_fields() {
    $countries_obj = new WC_Countries();
    $countries = $countries_obj->__get('countries');
        ?>
        <p class="form-row form-row-first">
            <label for="reg_billing_first_name"><?php _e( 'First name', 'woocommerce' ); ?> <span class="required">*</span></label>
            <input type="text" class="input-text" name="billing_first_name" id="reg_billing_first_name" value="<?php if ( ! empty( $_POST['billing_first_name'] ) ) esc_attr_e( $_POST['billing_first_name'] ); ?>" />
        </p>

        <p class="form-row form-row-last">
            <label for="reg_billing_last_name"><?php _e( 'Last name', 'woocommerce' ); ?> <span class="required">*</span></label>
            <input type="text" class="input-text" name="billing_last_name" id="reg_billing_last_name" value="<?php if ( ! empty( $_POST['billing_last_name'] ) ) esc_attr_e( $_POST['billing_last_name'] ); ?>" />
        </p>

        <div class="clear"></div>
            <p class="form-row form-row-wide">
                <label for="reg_billing_country"><?php _e( 'Country', 'woocommerce' ); ?> <span class="required">*</span></label>
                <select class="country_select" name="billing_country" id="reg_billing_country">
                    <?php foreach ($countries as $key => $value): ?>
                        <option value="<?php echo $key?>"><?php echo $value?></option>
                    <?php endforeach; ?>
                </select>
            </p>
<?php
}

add_action( 'woocommerce_register_form', 'wooc_extra_register_fields' );

To save the fields:

function wooc_save_extra_register_fields( $customer_id ) {
    if ( isset( $_POST['billing_first_name'] ) ) {
        // WordPress default first name field.
        update_user_meta( $customer_id, 'first_name', sanitize_text_field( $_POST['billing_first_name'] ) );

        // WooCommerce billing first name.
        update_user_meta( $customer_id, 'billing_first_name', sanitize_text_field( $_POST['billing_first_name'] ) );
    }

    if ( isset( $_POST['billing_last_name'] ) ) {
        // WordPress default last name field.
        update_user_meta( $customer_id, 'last_name', sanitize_text_field( $_POST['billing_last_name'] ) );

        // WooCommerce billing last name.
        update_user_meta( $customer_id, 'billing_last_name', sanitize_text_field( $_POST['billing_last_name'] ) );
    }

    if ( isset( $_POST['billing_country'] ) ) {
        // WooCommerce billing country
        update_user_meta( $customer_id, 'billing_country', sanitize_text_field( $_POST['billing_country'] ) );
    }
}

add_action( 'woocommerce_created_customer', 'wooc_save_extra_register_fields' );

Of course you can follow the code on the tutorial to include custom validation for these fields.

Hope this helps!
Regards.

thanks felmantbuntog

I can confirm This code does work and is very useful !

I wish woocommerce would document this.

@felmantbuntog

Thanks so much for posting that snippet, it was just what I was looking for.

Any suggestions for displaying and saving the State/Province on the registration page?