Wentworth-Coolidge Mansion
Added to the National Register in 1968, and a National Historic Landmark.
The record
| Property type | Building |
| Address | 2 mi. S of Portsmouth, off US 1A, Portsmouth, NH |
| County | Rockingham County |
| Listed | Nov 24, 1968 |
| Listed for | Architecture |
| Level of significance | National |
| Also known as | Benning Wentworth Mansion |
| Reference number | 68000011 |
| Designations | National Historic Landmark |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | 2 mi. S of Portsmouth, off US 1A, Portsmouth, NH |
| Coordinates | 43.0617° N, 70.7389° W · Directions ↗ |
| Also in Portsmouth | 42 listed places in Portsmouth → · walking tours → |
Explore
Map
Nearby in Rockingham County
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New Hampshire travel guides
Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
When was Wentworth-Coolidge Mansion listed on the National Register?
Nov 24, 1968. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
Where is Wentworth-Coolidge Mansion?
2 mi. S of Portsmouth, off US 1A, Portsmouth, Rockingham County, New Hampshire.
Source: National Park Service
Where is the nomination form for Wentworth-Coolidge Mansion?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Is there a wildfire near Wentworth-Coolidge Mansion right now?
2 active incidents within 50 miles as of 2026-10-17, nearest Morse Rx, 39 miles away.
Source: Map
Sources
Name, location, type and dates come from the National Register office's spreadsheet of listed properties, because the Park Service's spatial data does not carry this listing. The map point comes from Wikidata. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 68000011. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place.