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U.S. ZIP Codes Database 2026

Name: Rio Grande County
Address: US

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Rio Grande County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Rio Grande County.

County	State	ZIP Code	City	Area Codes
Rio Grande County	CO	81132	Del Norte	`719`
Rio Grande County	CO	81135	Homelake	`719`
Rio Grande County	CO	81144	Monte Vista	`719`
Rio Grande County	CO	81154	South Fork	`719, 970`

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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.