Average GPS coordinates for Alamosa Postcode location: 37.473, -105.88. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Alamosa on map:

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Listing cities & postcodes (2):
>> Colorado, 81101 Alamosa, Alamosa, GPS coordinates: 37.4703,-105.8786
>> Colorado, 81102 Alamosa, Alamosa, GPS coordinates: 37.476,-105.8818