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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Aroostook County ZIP Codes

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

County State ZIP Code City Area Codes
Aroostook County ME 04739 Eagle Lake 207
Aroostook County ME 04740 Easton 207, 506
Aroostook County ME 04741 Estcourt Station 207
Aroostook County ME 04742 Fort Fairfield 207, 506
Aroostook County ME 04743 Fort Kent 207, 367, 418, 506, 581
Aroostook County ME 04744 Fort Kent Mills 207
Aroostook County ME 04745 Frenchville 207, 506
Aroostook County ME 04746 Grand Isle 207, 506
Aroostook County ME 04747 Island Falls 207
Aroostook County ME 04750 Limestone 207, 506
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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.