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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 04751 Limestone 207
Aroostook County ME 04756 Madawaska 207, 506
Aroostook County ME 04757 Mapleton 207
Aroostook County ME 04758 Mars Hill 207, 506
Aroostook County ME 04760 Monticello 207, 506
Aroostook County ME 04761 New Limerick 207
Aroostook County ME 04762 New Sweden 207
Aroostook County ME 04763 Oakfield 207
Aroostook County ME 04764 Oxbow 207
Aroostook County ME 04766 Perham 207
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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.