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U.S. ZIP Codes Database 2026

Name: Jessamine County
Address: US

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Jessamine County ZIP Codes

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

County	State	ZIP Code	City	Area Codes
Jessamine County	KY	40339	Keene	`859`
Jessamine County	KY	40340	Nicholasville	`859`
Jessamine County	KY	40356	Nicholasville	`859`
Jessamine County	KY	40390	Wilmore	`859`

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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.