Average GPS coordinates for Williamsport Postcode location: 41.282, -77.015. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Williamsport on map:

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Listing cities & postcodes (4):
>> Pennsylvania, 17701 Williamsport, Lycoming, GPS coordinates: 41.2667,-76.9583
>> Pennsylvania, 17702 Williamsport, Lycoming, GPS coordinates: 41.1943,-77.0547
>> Pennsylvania, 17703 Williamsport, Lycoming, GPS coordinates: 41.3328,-77.0236
>> Pennsylvania, 17705 Williamsport, Lycoming, GPS coordinates: 41.3328,-77.0236