diff --git a/includes/wc-template-functions.php b/includes/wc-template-functions.php
index ed3cc2f1f1b..1e1afc29761 100644
--- a/includes/wc-template-functions.php
+++ b/includes/wc-template-functions.php
@@ -2013,7 +2013,7 @@ if ( ! function_exists( 'woocommerce_form_field' ) ) {
 
 					$field .= '<strong>' . current( array_values( $countries ) ) . '</strong>';
 
-					$field .= '<input type="hidden" name="' . esc_attr( $key ) . '" id="' . esc_attr( $args['id'] ) . '" value="' . current( array_keys( $countries ) ) . '" ' . implode( ' ', $custom_attributes ) . ' class="country_to_state" />';
+					$field .= '<input type="hidden" name="' . esc_attr( $key ) . '" id="' . esc_attr( $args['id'] ) . '" value="' . current( array_keys( $countries ) ) . '" ' . implode( ' ', $custom_attributes ) . ' class="country_to_state" readonly="readonly" />';
 
 				} else {
 
@@ -2039,7 +2039,7 @@ if ( ! function_exists( 'woocommerce_form_field' ) ) {
 
 					$field_container = '<p class="form-row %1$s" id="%2$s" style="display: none">%3$s</p>';
 
-					$field .= '<input type="hidden" class="hidden" name="' . esc_attr( $key ) . '" id="' . esc_attr( $args['id'] ) . '" value="" ' . implode( ' ', $custom_attributes ) . ' placeholder="' . esc_attr( $args['placeholder'] ) . '" />';
+					$field .= '<input type="hidden" class="hidden" name="' . esc_attr( $key ) . '" id="' . esc_attr( $args['id'] ) . '" value="" ' . implode( ' ', $custom_attributes ) . ' placeholder="' . esc_attr( $args['placeholder'] ) . '" readonly="readonly" />';
 
 				} elseif ( ! is_null( $for_country ) && is_array( $states ) ) {