diff --git a/types/googlepay/googlepay-tests.ts b/types/googlepay/googlepay-tests.ts
index 6c99453fbe24fc..8b60c1542d9e5b 100644
--- a/types/googlepay/googlepay-tests.ts
+++ b/types/googlepay/googlepay-tests.ts
@@ -201,6 +201,10 @@ function getGooglePaymentDataConfiguration(): google.payments.api.PaymentDataReq
         },
         allowedPaymentMethods,
         shippingAddressRequired: true,
+        shippingAddressParameters: {
+            phoneNumberRequired: true,
+            format: "FULL-ISO3166",
+        },
         callbackIntents: ["OFFER", "PAYMENT_AUTHORIZATION", "PAYMENT_METHOD"],
     };
 }
diff --git a/types/googlepay/index.d.ts b/types/googlepay/index.d.ts
index 56784d45b04e03..1b37bbab81fe97 100644
--- a/types/googlepay/index.d.ts
+++ b/types/googlepay/index.d.ts
@@ -404,6 +404,15 @@ declare namespace google.payments.api {
          * @default false
          */
         phoneNumberRequired?: false | true | undefined;
+
+        /**
+         * Shipping address format.
+         *
+         * If omitted, defaults to [[ShippingAddressFormat|`FULL`]].
+         *
+         * * @default "FULL"
+         */
+        format?: ShippingAddressFormat | undefined;
     }
 
     /**
@@ -483,6 +492,14 @@ declare namespace google.payments.api {
          * number be returned.
          */
         phoneNumber?: string | undefined;
+
+        /**
+         * The ISO 3166-2 administrative area
+         *
+         * ISO 3166-2 administrative area corresponding to administrativeArea.
+         * Only present if the shipping or billing address format is FULL-ISO3166.
+         */
+        iso3166AdministrativeArea?: string | undefined;
     }
 
     /**
@@ -516,6 +533,14 @@ declare namespace google.payments.api {
          * The locality (e.g. city or town).
          */
         locality: string;
+
+        /**
+         * The ISO 3166-2 administrative area
+         *
+         * ISO 3166-2 administrative area corresponding to administrativeArea.
+         * Only present if the shipping address format is FULL-ISO3166.
+         */
+        iso3166AdministrativeArea?: string | undefined;
     }
 
     /**
@@ -1582,8 +1607,35 @@ declare namespace google.payments.api {
      *   Only select this format when it is required to process the order.
      *   Additional form entry or customer data requests can increase friction
      *   during the checkout process and can lead to a lower conversion rate.
+     *
+     * - `FULL-ISO3166`:
+     *   Same as `FULL` but includes [[Address.iso3166AdministrativeArea|`Address.iso3166AdministrativeArea`]]
+     */
+    type BillingAddressFormat = "MIN" | "FULL" | "FULL-ISO3166";
+
+    /**
+     * Shipping address format enum string.
+     *
+     * Options:
+     *
+     * - `FULL`:
+     *   Full shipping address
+     *
+     *   All the fields in [[Address|`Address`]] will
+     *   be returned, with the possible exception of
+     *   [[Address.phoneNumber|`Address.phoneNumber`]] which will only be
+     *   returned if
+     *   [[ShippingAddressParameters.phoneNumberRequired|`ShippingAddressParameters.phoneNumberRequired`]]
+     *   is set to `true`.
+     *
+     *   Only select this format when it is required to process the order.
+     *   Additional form entry or customer data requests can increase friction
+     *   during the checkout process and can lead to a lower conversion rate.
+     *
+     * - `FULL-ISO3166`:
+     *   Same as `FULL` but includes [[Address.iso3166AdministrativeArea|`Address.iso3166AdministrativeArea`]]
      */
-    type BillingAddressFormat = "MIN" | "FULL";
+    type ShippingAddressFormat = "FULL" | "FULL-ISO3166";
 
     /**
      * The status of the total price used.
diff --git a/types/googlepay/package.json b/types/googlepay/package.json
index 04bf4799cb0772..34aa8b75a8b612 100644
--- a/types/googlepay/package.json
+++ b/types/googlepay/package.json
@@ -38,6 +38,14 @@
         {
             "name": "Dominik Mengelt",
             "githubUsername": "dmengelt"
+        },
+        {
+            "name": "Matthew Class",
+            "githubUsername": "aikimatthew"
+        },
+        {
+            "name": "Stephen McDonald",
+            "githubUsername": "stephenmcd"
         }
     ]
 }