Average GPS coordinates for Norristown Postcode location: 40.09, -75.512. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Norristown on map:

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Listing cities & postcodes (5):
>> Pennsylvania, 19401 Norristown, Montgomery, GPS coordinates: 40.1245,-75.3304
>> Pennsylvania, 19403 Norristown, Montgomery, GPS coordinates: 40.1496,-75.3796
>> Pennsylvania, 19404 Norristown, Montgomery, GPS coordinates: 40.2119,-75.3559
>> Pennsylvania, 19488 Norristown, Chester, GPS coordinates: 39.9832,-75.7481
>> Pennsylvania, 19489 Norristown, Chester, GPS coordinates: 39.9832,-75.7481