New Jersey State House
state capitol building of the U.S. state of New Jersey
The New Jersey State House is the capitol building of the U.S. state of New Jersey and is the third-oldest state house in continuous legislative use in the United States. Located in the state capital of Trenton, in Mercer County, it was originally built in 1792. The building accommodates both the New Jersey Legislature's Senate and General Assembly chambers, offices of the governor, lieutenant governor, and various state government departments. From August to November 1799, the federal government relocated its offices to Trenton, with the United States Department of State headquartered in the State House, following an outbreak of yellow fever in the then-capital of Philadelphia.
The State House has experienced numerous expansions and renovations to meet the growing needs of the state since its original construction. Designed by Jonathan Doane, the original structure has seen architectural inputs from other notable architects across the centuries. The State House underwent a significant restoration and modernization project in 1987, and another renovation project that started in 2017, with a major focus on the governor's office and related Executive Branch agencies.
The New Jersey State House deviates from the architectural trend of most U.S. capitol buildings, which are reminiscent of the U.S. Capitol, and is integrated into an urban setting instead of a park-like campus. It offers daily tours to the public and provides an educational platform for middle and high school students.
History
After the legislature relocated to Trenton from Perth Amboy in 1790, it purchased 3.75 acres (0.0152 km2) land for £250.
The public source identifies “New Jersey State House” as state capitol building of the U.S. state of New Jersey. This brief keeps that definition visible, then builds a research path around Jersey, State and House.
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Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Jul 5, 2026. The linked authority identifier is Q3695455. Authority coordinates are 40.220, -74.770. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1792, 1799, 1987 and 2017.
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This entry incorporates text from “New Jersey State House” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.