Average GPS coordinates for San Martin Postcode location: 17.227, -99.68. (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:

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Listing cities & postcodes (5):
>> Guerrero, 39250 San Martin, Quechultenango, GPS coordinates: 17.4667,-99.3
>> Guerrero, 39279 San Martin, Tecoanapa, GPS coordinates: 17.1333,-99.1667
>> Guerrero, 40187 San Martin, Eduardo Neri, Zumpango Del Rio, GPS coordinates: 17.2,-100.3833
>> Guerrero, 40976 San Martin, Coyuca de Benitez, Coyuca de Benitez, GPS coordinates: 17.2,-100.3833
>> Guerrero, 41753 San Martin, Tlacoachistlahuaca, GPS coordinates: 17.1333,-99.1667