Average GPS coordinates for Monticello Postcode location: 31.524, -90.128. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Monticello on map:

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Listing cities & postcodes (1):
>> Mississippi, 39654 Monticello, Lawrence, GPS coordinates: 31.5238,-90.128