Average GPS coordinates for Oakville Postcode location: 41.591, -73.087. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Oakville on map:

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Listing cities & postcodes (1):
>> Connecticut, 06779 Oakville, Litchfield, GPS coordinates: 41.5909,-73.0873