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City and Public Services in New Castle, CO

City and Public Services

United States Postal Service

City and Public Services in New Castle, CO

Address: 112 W Main St, New Castle, CO 81647
Phone: (800) 275-8777
Website: tools.usps.com/locations/details/1374676?utm_source=website-url&utm_medium=search&utm_campaign=yext

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Last checked September 23, 2026. Call ahead to confirm hours.

Listing details from Overture Maps open data.

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