# About Google Maps IDs

Response Parameter:  `place_id`

Each entry in the Google Places database is assigned a Place ID.

Place IDs are unique identifiers.

Place IDs are only returned when an `extended` call is made and a result is obtained from Google Places. See [Restrictive vs Extended](/basic-concepts/restrictive-vs-extended.md).

Place IDs can be used to obtain other information about the place.

Place IDs can be cached indefinitely.

#### Example Place ID

Here is an example response with the `place_id` highlighted

>  `{`
>
>     `"address": "207 Edgware Rd, Tyburnia, London W2 1ES, UK",`
>
>     `"categories": [`
>
>       `"cafe"`
>
>     `],`
>
>     `"category": "Eating out",`
>
>     `"name": "Starbucks",`
>
>     `"website": "www.starbucks.com",`
>
>     `"country": "United Kingdom",`
>
>     `"postal_code": "W2 1ES",`
>
>     **`"place_id": "ChIJG2-uP7QadkgR6sN3Fcgg2X0",`**


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