Besides Username targeting and Hashtag targeting, you can target users using Instagram Location Tags.
In order to find Instagram Location URLs, please follow these steps:
Go to Instagram.com on your computer
In the search field, type a location (for instance: new york) and click on the location tag you want to target.
Or, go to https://www.instagram.com/explore/locations/ to browse Locations.
Once you're on a Location page, copy the URL in your browser URL address bar.
Paste the URL in the Suparise App under Dashboard > Targeting > Location
Click on the Add button. Once you've clicked, you should be seeing this if the URL is correct
That's all! You can add multiple location tags this way, and you can also narrow down your location targeting to neighborhoods (for instance: Brooklyn, Bronx, ...).