Editing Knowlton Township, New Jersey (section)

==Demographics==
{{US Census population
| 1810=2064
| 1820=2701
| 1830=2827
| 1840=2310 | 1840n=*
| 1850=1356 | 1850n=*
| 1860=1557
| 1870=1691
| 1880=1476
| 1890=1411
| 1900=1210
| 1910=1556
| 1920=1073
| 1930=1049
| 1940=1084
| 1950=1260
| 1960=1442
| 1970=1738
| 1980=2074
| 1990=2543
| 2000=2977
| 2010=3055
| 2020=2894
| estimate=2926
| estyear=2023
| estref=<ref name=PopEst>[https://www2.census.gov/programs-surveys/popest/tables/2020-2023/mcds/totals/SUB-MCD-EST2023-POP-34.xlsx Annual Estimates of the Resident Population for Minor Civil Divisions in New Jersey: April 1, 2020 to July 1, 2023], [[United States Census Bureau]], released May 2024. Accessed May 16, 2024.</ref>
| footnote=Population sources:<small><br>1810–1920<ref>[https://dspace.njstatelib.org/xmlui/handle/10929/25218?show=full ''Compendium of censuses 1726-1905: together with the tabulated returns of 1905''], [[New Jersey Department of State]], 1906. Accessed June 6, 2013.</ref> 1840<ref>[[Francis Bowen|Bowen, Francis]]. [https://books.google.com/books?id=DnUFAAAAQAAJ&pg=PA231 ''American Almanac and Repository of Useful Knowledge for the Year 1843''], p. 231, David H. Williams, 1842. Accessed June 6, 2013.</ref> 1850–1870<ref>Raum, John O. [https://books.google.com/books?id=5qZ4AAAAMAAJ&pg=PA271 ''The History of New Jersey: From Its Earliest Settlement to the Present Time, Volume 1''], p. 272, J. E. Potter and company, 1877. Accessed June 6, 2013. "Knowlton contained in 1850, 1,356 inhabitants; in 1860, 1,557; and in 1870, 1,691."</ref><br>1850<ref>[[J. D. B. De Bow|Debow, James Dunwoody Brownson]]. [https://books.google.com/books?id=25TicJOdU0AC&pg=PA141 ''The Seventh Census of the United States: 1850''], p. 141. R. Armstrong, 1853. Accessed June 6, 2013.</ref> 1870<ref>Staff. [https://books.google.com/books?id=gNwIAAAAQAAJ&pg=PA260 ''A compendium of the ninth census, 1870''], p. 260. [[United States Census Bureau]], 1872. Accessed June 6, 2013.</ref> 1880–1890<ref>Porter, Robert Percival. [https://books.google.com/books?id=8gUkQkJdLpsC&pg=PA100 ''Preliminary Results as Contained in the Eleventh Census Bulletins: Volume III - 51 to 75''], p. 100. [[United States Census Bureau]], 1890. Accessed June 6, 2013.</ref><br>1890–1910<ref>[https://books.google.com/books?id=T9HrAAAAMAAJ&pg=PA339 ''Thirteenth Census of the United States, 1910: Population by Counties and Minor Civil Divisions, 1910, 1900, 1890''], [[United States Census Bureau]], p. 339. Accessed June 6, 2013.</ref> 1910–1930<ref>[https://books.google.com/books?id=kifRAAAAMAAJ&pg=PA719 ''Fifteenth Census of the United States : 1930 - Population Volume I''], [[United States Census Bureau]], p. 719. Accessed June 6, 2013.</ref><br>1940–2000<ref>[https://www.nj.gov/labor/labormarketinformation/assets/PDFs/census/2kpub/njsdcp3.pdf#page=27 Table 6: New Jersey Resident Population by Municipality: 1940 - 2000], Workforce New Jersey Public Information Network, August 2001. Accessed May 1, 2023.</ref> 2000<ref name=Census2000/><ref name=Census2000SF1/><br>2010<ref name=Census2010>[http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0600000US3404137320 DP-1 - Profile of General Population and Housing Characteristics: 2010 for Knowlton township, Warren County, New Jersey] {{Webarchive|url=https://archive.today/20200212103634/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0600000US3404137320 |date=2020-02-12 }}, [[United States Census Bureau]]. Accessed June 6, 2013.</ref><ref name=LWD2010>[http://lwd.dol.state.nj.us/labor/lpa/census/2010/dp/dp1_war/knowlton1.pdf Profile of General Demographic Characteristics: 2010 for Knowlton township]{{Dead link|date=February 2020 |bot=InternetArchiveBot |fix-attempted=yes }}, [[New Jersey Department of Labor and Workforce Development]]. Accessed June 6, 2013.</ref> 2020<ref name=LWD2020>[https://www.nj.gov/labor/labormarketinformation/assets/PDFs/census/2020/2020%20pl94%20Tables/2020_Mun/MCD%200_All.pdf Total Population: Census 2010 - Census 2020 New Jersey Municipalities], [[New Jersey Department of Labor and Workforce Development]]. Accessed December 1, 2022.</ref><br>* = Lost territory in previous decade<ref name=Story/></small>
}}
The Township's economic data (as is all of Warren County) is calculated by the US Census Bureau as part of the [[Lehigh Valley|Allentown-Bethlehem-Easton, PA-NJ Metropolitan Statistical Area]].<ref>Karp, Gregory. [https://www.mcall.com/news/mc-xpm-2003-06-22-3465235-story.html "Lehigh Valley, Warren County reunited as a metro area ** Economies, social patterns similar, federal office says."], ''[[The Morning Call]]'', June 22, 2003. Accessed February 15, 2022. "This time, new rules for defining MSAs determined that because the Phillipsburg area was the biggest cluster of people in Warren County, the whole county should be lumped with the nearby Allentown-Bethlehem-Easton metro area."</ref><ref>[https://tigerweb.geo.census.gov/tigerwebmain/Files/tab20/tigerweb_tab20_cdp_2020_nj.html State of New Jersey Census Designated Places - BVP20 - Data as of January 1, 2020], [[United States Census Bureau]]. Accessed December 1, 2022.</ref>

===2010 census===
[[File:Columbia-Portland Pedestrian Bridge.jpg|thumb|left|upright=1.1| The Portland-Columbia Pedestrian Bridge replaced the last of the covered bridges spanning the Delaware River in this photo facing towards New Jersey. The original covered bridge was destroyed by the remnants of [[Hurricane Diane]] on August 19, 1955, a storm that caused record flooding throughout the region, but particularly within the watershed of the Delaware.]] 
The [[2010 United States census]] counted 3,055 people, 1,097 households, and 864 families in the township. The population density was {{convert|123.4|PD/sqmi|PD/km2|sp=us|adj=off}}. There were 1,212 housing units at an average density of {{convert|49.0|/sqmi|/km2|sp=us|adj=off}}. The racial makeup was 96.07% (2,935) [[White (U.S. census)|White]], 0.92% (28) [[Black (U.S. census)|Black or African American]], 0.29% (9) [[Native American (U.S. census)|Native American]], 0.92% (28) [[Asian (U.S. census)|Asian]], 0.00% (0) [[Pacific Islander (U.S. census)|Pacific Islander]], 0.75% (23) from [[Race and ethnicity in the United States census#Race|other races]], and 1.05% (32) from two or more races. [[Hispanic (U.S. census)|Hispanic or Latino]] of any race were 3.63% (111) of the population.<ref name=Census2010/>

Of the 1,097 households, 33.5% had children under the age of 18; 66.5% were married couples living together; 8.3% had a female householder with no husband present and 21.2% were non-families. Of all households, 16.3% were made up of individuals and 6.7% had someone living alone who was 65 years of age or older. The average household size was 2.75 and the average family size was 3.10.<ref name=Census2010/>

23.3% of the population were under the age of 18, 7.0% from 18 to 24, 20.2% from 25 to 44, 36.8% from 45 to 64, and 12.7% who were 65 years of age or older. The median age was 44.8 years. For every 100 females, the population had 101.7 males. For every 100 females ages 18 and older there were 98.1 males.<ref name=Census2010/>

The Census Bureau's 2006–2010 [[American Community Survey]] showed that (in 2010 [[inflation adjustment|inflation-adjusted]] dollars) [[median household income]] was $81,346 (with a margin of error of +/− $11,792) and the median family income was $86,708 (+/− $13,339). Males had a median income of $76,733 (+/− $8,158) versus $51,757 (+/− $3,961) for females. The [[per capita income]] for the Township was $35,440 (+/− $4,605). About 1.4% of families and 3.3% of the population were below the [[poverty line]], including 3.1% of those under age 18 and 7.7% of those age 65 or over.<ref>[http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0600000US3404137320 DP03: Selected Economic Characteristics from the 2006-2010 American Community Survey 5-Year Estimates for Knowlton township, Warren County, New Jersey] {{Webarchive|url=https://archive.today/20200212085125/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0600000US3404137320 |date=2020-02-12 }}, [[United States Census Bureau]]. Accessed June 6, 2013.</ref>

===2000 census===
[[File:RAMSAYBURG HOMESTEAD, WARREN COUNTY.jpg|thumb|upright=1.1|Ramsayburg Homestead, listed on the National Register of Historic Places]]
As of the [[2000 United States census|2000 U.S. census]],<ref name="GR2" /> there were 2,977 people, 1,028 households, and 816 families residing in the township. The population density was {{convert|120.1|PD/sqmi|PD/km2|sp=us|adj=off}}. There were 1,135 housing units at an average density of {{convert|45.8|/sqmi|/km2|sp=us|adj=off}}. The racial makeup of the township was 97.45% [[White (U.S. Census)|White]], 0.40% [[African American (U.S. Census)|African American]], 0.07% [[Native American (U.S. Census)|Native American]], 0.64% [[Asian (U.S. Census)|Asian]], 0.47% from [[Race (United States Census)|other races]], and 0.97% from two or more races. [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]] of any race were 1.85% of the population.<ref name=Census2000>[http://censtats.census.gov/data/NJ/0603404137320.pdf Census 2000 Profiles of Demographic / Social / Economic / Housing Characteristics for Knowlton township, New Jersey] {{Webarchive|url=https://web.archive.org/web/20040113204216/http://censtats.census.gov/data/NJ/0603404137320.pdf |date=2004-01-13 }}, [[United States Census Bureau]]. Accessed October 31, 2016.</ref><ref name=Census2000SF1>[http://factfinder.census.gov/bkmk/table/1.0/en/DEC/00_SF1/DP1/0600000US3404137320 DP-1: Profile of General Demographic Characteristics: 2000 - Census 2000 Summary File 1 (SF 1) 100-Percent Data for Knowlton township, Warren County, New Jersey] {{Webarchive|url=https://archive.today/20200212092017/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/00_SF1/DP1/0600000US3404137320 |date=2020-02-12 }}, [[United States Census Bureau]]. Accessed June 6, 2013.</ref>

There were 1,028 households, out of which 40.0% had children under the age of 18 living with them, 69.1% were [[Marriage|married couples]] living together, 6.6% had a female householder with no husband present, and 20.6% were non-families. 15.0% of all households were made up of individuals, and 7.1% had someone living alone who was 65 years of age or older. The average household size was 2.87 and the average family size was 3.21.<ref name=Census2000/><ref name=Census2000SF1/>

[[File:Delaware Water Gap from I 80.jpg|thumb|left|upright=1.1|Knowlton Township's rural character is evident in this view of the [[Delaware Water Gap]] from Linaberry Road.]]
In the township the population was spread out, with 27.6% under the age of 18, 5.7% from 18 to 24, 31.3% from 25 to 44, 24.1% from 45 to 64, and 11.2% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 101.8 males. For every 100 females age 18 and over, there were 98.0 males.<ref name=Census2000/><ref name=Census2000SF1/>

The median income for a household in the township was $63,409, and the median income for a family was $72,130. Males had a median income of $46,250 versus $35,326 for females. The [[per capita income]] for the township was $24,631. About 1.5% of families and 3.5% of the population were below the [[poverty line]], including 4.2% of those under age 18 and 1.3% of those age 65 or over.<ref name=Census2000/><ref name=Census2000SF1/>