Average GPS coordinates for Middletown Postcode location: 41.557, -72.662. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Middletown on map:

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Listing cities & postcodes (2):
>> Connecticut, 06457 Middletown, Middlesex, GPS coordinates: 41.5569,-72.6652
>> Connecticut, 06459 Middletown, Middlesex, GPS coordinates: 41.5565,-72.6582