Average GPS coordinates for Costa Chica Postcode location: 17.167, -96.626. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Costa Chica on map:

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Listing cities & postcodes (2):
>> Oaxaca, 71007 Costa Chica, Putla Villa de Guerrero, Putla Villa de Guerrero, GPS coordinates: 16.9893,-96.0369
>> Oaxaca, 71984 Costa Chica, San Pedro Mixtepec-juquila, Puerto Escondido, GPS coordinates: 17.3438,-97.216