Nantucket County is named for the town of Nantucket which name is derived from a Wampanoag word meaning “place of peace”.
Surrounding County Courthouses:
N – Barnstable County and Atlantic Ocean
E – Atlantic Ocean
S – Atlantic Ocean
W – Dukes County and Atlantic Ocean
Created: June 22, 1695 
County Seat:
Nantucket 1695 – present
County Courthouse – Nantucket
Location: 16 Broad Street / South Water Street
Built: 1964 – 1965
Style: Georgian
Architect: Tallman, Drake & Guay
Contractor: Gerald E McNally Construction Company, Inc.
Description: The building faces north and is a t wo story red colored brick and concrete structure. The north front has a projecting center section with central entrance on the first story with white colored wood framing and wide fan light. There are east and west wings. The roof is hipped with a white colored octagonal cupola at the center of the roof. In the interior, the County Superior Court courtroom is located on the second story above the entrance.
Old County Courthouse – Nantucket
Location: Main Street / South Water Street
Built: 1775 – 1776
Style: Georgian
Architect: William Rotch
Contractor: Ebenezer Rand & Sons
Description: The building faces south and is a three story red colored brick and wood structure. The south front has a central entrance on the first story. The west side has an entrance and white colored pilasters with a horizontal band at the top of the first story. The roof is hipped with a flag platform at the east side. The building housed the county offices until 1965.
Note: The building served as the Rotch Counting House and warehouse. The building was purchased by the Commercial Insurance Company and in 1861, it was purchased by a group of former whaling masters who formed an organization known as the Pacific Club.
County Courthouse –
County Superior Court courtroom
Photos taken 2017