Average GPS coordinates for Avon Postcode location: 33.219, -91.048. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Avon on map:

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Listing cities & postcodes (1):
>> Mississippi, 38723 Avon, Washington, GPS coordinates: 33.219,-91.0479