Average GPS coordinates for Calvert Postcode location: 30.978, -96.671. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Calvert on map:
Listing cities & postcodes (1):
>> Texas, 77837 Calvert, Robertson, GPS coordinates: 30.9782,-96.6711
Listing cities & postcodes (1):
>> Texas, 77837 Calvert, Robertson, GPS coordinates: 30.9782,-96.6711