Average GPS coordinates for Olmsted Postcode location: 37.194, -89.093. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Olmsted on map:

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Listing cities & postcodes (1):
>> Illinois, 62970 Olmsted, Pulaski, GPS coordinates: 37.1935,-89.0933