Exact federal listing answer
Is Wentworth-Coolidge Mansion on the National Register?
Yes · NPS status: Listed
Yes. Reference 68000011 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Wentworth-Coolidge Mansion as Listed in the National Register of Historic Places under reference 68000011.
Federal statusListed
National Register reference68000011
Listed dateNovember 24, 1968
Property categoryBuilding
Published address2 mi. S of Portsmouth, off US 1A
LocalityPortsmouth, Rockingham County, New Hampshire
Significance levelNational
Published acreage6
Exact answer boundaryThis confirms the named federal record only.
It does not prove that another address lies inside this property or district, establish local landmark status, decide preservation review, define a legal boundary, or describe ownership or current condition.
Why the wording is date-boundedThe answer reflects the NPS dataset published through May 22, 2026 and a live NPS GIS Listed-status cross-check made September 20, 2026. NPS notes that spatial points and polygons may need correction and are not legal documents.
Additional published fields
Areas of significance: ARCHITECTURE.
Other published names: Benning Wentworth Mansion.
Same locality
Other released Portsmouth records.
Each linked page answers a separate named federal record.