81101 ZIP Code - United States

This ZIP Code belongs to the following areas. Below you can see the map of the postal area.

City	City	ZIP Type	Estimated Population
Alamosa, CO	PRIMARY	STANDARD	10.239
Great Sand Dunes National Mo, CO	ACCEPTABLE	STANDARD	10.239
Sand Dunes Mo, CO	ACCEPTABLE	STANDARD	10.239
Carmel, CO	NOT ACCEPTABLE	STANDARD	10.239
East Alamosa, CO	NOT ACCEPTABLE	STANDARD	10.239
Estrella, CO	NOT ACCEPTABLE	STANDARD	10.239
Henry, CO	NOT ACCEPTABLE	STANDARD	10.239
Stanley, CO	NOT ACCEPTABLE	STANDARD	10.239
Washington, CO	NOT ACCEPTABLE	STANDARD	10.239
Waverly, CO	NOT ACCEPTABLE	STANDARD	10.239

Postal Zone from ZIP Code 81101 - United States

County	FIP	Weight
Alamosa	08003	99.25%
Conejos	08021	0.75%

Check the list of Colorado ZIP Code.

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PRIMARY: means an the primary city name. Official city name, although the city name might also have another acceptable name.
ACCEPTABLE: means an adequate city name. City names that are abbreviated will frequently be listed as unacceptable because abbreviations are not an acceptable city name format.
NOT ACCEPTABLE: Means an inadequate city name has been entered or received based on information entered.
UNIQUE: Assigned to a company, government agency, or entity with sufficient mail volume, based on average daily volume of letter size mail received, availability of ZIP Code numbers in the postal area, and the US mail service cost-benefit analysis.