Average GPS coordinates for Highland Postcode location: 42.664, -83.613. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Highland on map:

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Listing cities & postcodes (2):
>> Michigan, 48356 Highland, Oakland, GPS coordinates: 42.6692,-83.5895
>> Michigan, 48357 Highland, Oakland, GPS coordinates: 42.6595,-83.637