Title: Princeton, New Jersey
Content:  According to the United States Census Bureau, Princeton had a total area of 18.41 square miles (47.69 km2), including 17.95 square miles (46.48 km2) of land and 0.47 square miles (1.21 km2) of water (2.53%). Cedar Grove, Port Mercer, Princeton Basin, and Jugtown are unincorporated communities that have been absorbed into Greater Princeton over the years, but still maintain their own community identity. Princeton borders the municipalities of Hopewell Township, Lawrence and West Windsor Townships in Mercer County; Plainsboro Township and South Brunswick Township in Middlesex County; and Franklin Township and Montgomery Township in Somerset County. United States Postal ZIP codes for Princeton include 08540, 08541 (Educational Testing Service), 08542 (largely the old Borough), 08543 (PO boxes), and 08544 (the University).
Title: Princeton, New Jersey
Content:  Princeton is a municipality with a borough form of government in Mercer County, New Jersey, United States, that was established in its current form on January 1, 2013, through the consolidation of the now-defunct Borough of Princeton and Princeton Township. Centrally located within the Raritan Valley region, Princeton is a regional commercial hub for the Central New Jersey region and a commuter town in the New York metropolitan area. As of the 2010 United States Census, the municipality's population was 28,572, reflecting the former township's population of 16,265, along with the 12,307 in the former borough. Princeton was founded before the American Revolutionary War. 
Title: Borough of Princeton, New Jersey
Content:  Princeton borough was located at 40.35046°N, -74.65937°W (40.350461,-74.659371). According to the United States Census Bureau, the borough had a total area of 1.843 square miles (4.774 km2), all of which was land.
Title: Princeton Junction, New Jersey
Content:  Princeton Junction is an unincorporated community and census-designated place (CDP) located within West Windsor Township, in Mercer County, New Jersey, United States. As of the 2010 United States Census, the CDP's population was 2,465.
Title: Borough of Princeton, New Jersey
Content:  The Borough of Princeton was a borough until December 31, 2012, that is now one of the two former municipalities making up Princeton, New Jersey. It was located in Mercer County, New Jersey, and was completely surrounded by the former Princeton Township, from which it was formed in 1894. As of the 2010 United States Census, the borough had a population of 12,307,  reflecting a decline of 1,896 (-13.3%) from the 14,203 counted in the 2000 Census, which had in turn increased by 2,187 (+18.2%) from the 12,016 counted in the 1990 Census. The Borough of Princeton was incorporated by an act of the New Jersey Legislature on 
Title: Princeton, California
Content:  Princeton (formerly, Ket-tee) is a census-designated place in Colusa County, California. It lies at an elevation of 82 feet (25 m). Its ZIP code is 95970 and its area code is 530. Princeton's population was 303 at the 2010 census.
Title: Princeton Township, New Jersey
Content:  Princeton Township was a township in Mercer County, New Jersey, United States, that existed from 1838 until it was dissolved after it was merged with Princeton Borough in 2013 to form Princeton, New Jersey. As of the 2010 United States Census, the township's population was 16,265,  reflecting an increase of 238 (+1.5%) from the 16,027 counted in the 2000 Census, which had in turn increased by 2,829 (+21.4%) from the 13,198 counted in the 1990 Census. Princeton was incorporated as a township by an act of the New Jersey Legislature on April 9, 1838, from portions of West Windsor Township in Mercer County and Montgomery Township in Somerset County. The Borough of Princeton &mdash; created on February 11, 1813 within the area that later became Princeton Township &mdash; became a fully independent municipality 
Title: Princeton Township, New Jersey
Content:  According to the United States Census Bureau, the township had a total area of 16.520 square miles (42.786 km2), including 16.090 square miles (41.672 km2) of it is land and 0.430 square miles (1.114 km2) of water (2.60%) is water. Princeton Borough was an independent municipality completely surrounded by the township. Princeton North was an unincorporated community located within Princeton Township that had been a census-designated place until the 2010 Census. The Princeton Airport is within Princeton's postal district but is situated less than a mile across the Somerset County border, in Montgomery Township.
Title: Princeton North, New Jersey
Content:  Princeton North is located at 40.36151°N, -74.65199°W (40.361506, -74.651988). According to the United States Census Bureau, the CDP has a total area of 4.2 km2 (1.6 mi2), all land.
Title: Princeton Junction station
Content:  Princeton Junction (signed as Princeton Junction at West Windsor) is a railroad station in Princeton Junction, New Jersey, located in West Windsor Township. It serves NJ Transit (NJT) and Amtrak on the Northeast Corridor (NEC), and NJ Transit on the Princeton Branch.

Question: what is the zip code for princeton nj?
Answer: 08544.