Find Post office in Mill Neck Near Me You can choose from the presented list of Post office in Mill Neck, New York. Find Post office near me. Open now United States Postal Service Establishment Finance Post office 32 Frost Mill Road, Mill Neck, NY 11765 +1 800-275-8777 NEW-YORK-BD.COM Mill Neck Post office Categories of companies in Mill Neck, New York All categories Doctor Establishment Finance Food Health Local government office Park Post office School Supermarket