Average GPS coordinates for Ennis Postcode location: 45.355, -111.687. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Ennis on map:

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Listing cities & postcodes (1):
>> Montana, 59729 Ennis, Madison, GPS coordinates: 45.3545,-111.687