Washington Borough, New Jersey
borough in Warren County, New Jersey, United States
Washington is a borough in Warren County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 7,299, an increase of 838 (+13.0%) from the 2010 census count of 6,461, which in turn reflected a decline of 251 (−3.7%) from the 6,712 counted in the 2000 census.
Washington was incorporated as a borough by an act of the New Jersey Legislature on February 20, 1868, from portions of Washington Township. The borough was named for George Washington, one of more than ten communities in the state of New Jersey that were named for the first president. The Borough of Washington is surrounded by Washington Township, which is one of five municipalities in the state of New Jersey with the name "Washington Township".
The borough had the 26th-highest property tax rate in New Jersey, with an equalized rate of 4.206% in 2020, compared to 2.967% in the county as a whole and a statewide average of 2.279%.
History
Washington Borough separated from Washington Township as of February 20, 1868. The community grew during the 19th century as a result of the transportation routes that ran through or near the borough. The Morris Canal ran along the north end of town and two rail lines of the Delaware, Lackawanna and Western Railroad crossed within the borough. Intersecting in the center of the borough are two major roadways, which today are Route 31 and Route 57.
Begin with the source’s own compact description: “Washington Borough, New Jersey” is borough in Warren County, New Jersey, United States. The dossier treats that line as a proposition to test through Washington, Borough and Jersey, not as a finished interpretation.
Why this record matters
The phrase “borough in Warren County, New Jersey, United States” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
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 Sep 18, 2026. The linked authority identifier is Q1088831. The first chronological checks are 2020, 2010, 2000 and 1868.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Washington Borough, New Jersey”, its source revision and the description used here.
- Expand the search: follow Washington Borough, New Jersey primary sources, Washington Borough, New Jersey archive and Washington research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Washington Borough, New Jersey”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Washington Borough, New Jersey” 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.