Average GPS coordinates for Knowles Postcode location: 36.839, -100.218. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Knowles on map:

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Listing cities & postcodes (1):
>> Oklahoma, 73847 Knowles, Beaver, GPS coordinates: 36.8393,-100.2179