The U.S. Geological Survey records Crystal Brook as a populated place. Its GNIS reference point is listed under the county label Suffolk County, New York, on the Port Jefferson map. This identifies a geographic reference point, not the full community boundary, current administrative boundaries, or its legal incorporation status. Use the locality and county references below when checking an address or distinguishing similarly named places.
Nearby places are within 15 miles straight-line, not driving distances. They retain their own locality ownership and are not claimed to be inside this community.
Port Jefferson · 1.0 miles straight-line · 21 Oakland Avenue, Port Jefferson, 11777
Map extract: 2026-09-02Port Jefferson · 1.0 miles straight-line · 28 Oakland Avenue, Port Jefferson, NY, 11777
Map extract: 2026-09-02Mount Sinai · 1.2 miles straight-line · 271 Route 25A, Mount Sinai, NY, 11766
Map extract: 2026-09-02Mount Sinai · 1.2 miles straight-line · 271 Route 25A, Mount Sinai, NY, 11766
Map extract: 2026-09-02Mount Sinai · 1.2 miles straight-line · 275 Route 25A, Mount Sinai, NY, 11766
Map extract: 2026-09-02Listings describe map records, not recommendations or a guarantee that a business is open. Confirm opening hours and service availability directly before visiting.
USGS GNIS lists the reference point for Crystal Brook under the county label Suffolk County. A reference point is not a municipal boundary or proof of current administrative boundaries; consult the linked locality and county sources for the geographic identity.
These are nearby directory records, not businesses claimed to be inside Crystal Brook: Hana (Port Jefferson, 1.0 miles straight-line); Grumpy Jack's Inc (Port Jefferson, 1.0 miles straight-line); Midori Sushi & Steakhouse (Mount Sinai, 1.2 miles straight-line). Distances are measured straight-line from the locality reference point, not by road. Each listing retains its true locality.
For an address in Suffolk County, confirm school assignment, utility service and permitting with the responsible provider or local authority. Nearby listings do not establish a school district, utility service territory or municipal boundary.
