Average GPS coordinates for San Martin Postcode location: 18.871, -103.904. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Martin on map:

---

Listing cities & postcodes (2):
>> Chihuahua, 31030 San Martin, Chihuahua, Chihuahua, GPS coordinates: 18.8708,-103.9042
>> Chihuahua, 31460 San Martin, Chihuahua, Chihuahua, GPS coordinates: 18.8708,-103.9042