Knowlton Township, New Jersey
Township in Warren County, New Jersey
| Census | Population |
|---|---|
| 2000 | 2,977 |
| 2010 | 3,055 |
| 2020 | 2,894 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county subdivision level, state 34, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county subdivision level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county subdivision level, state 34, retrieved November 14, 2026.
| Measure | Knowlton Township | Warren County | New Jersey |
|---|---|---|---|
| Population | 2,907 | 110,238 | 9,267,014 |
| Median household income | $98,750 | $99,596 | $101,050 |
| Median age | 42.9 | 43.9 | 40.1 |
| Median home value | $320,400 | $323,100 | $427,600 |
| Bachelor’s degree or higher | 28.7% | 36.4% | 42.9% |
| Foreign-born residents | 5.4% | 10.3% | 23.5% |
| Owner-occupied homes | 87.2% | 74.3% | 63.7% |
| Mean commute to work | 35.2 minutes | 34.1 minutes | 30.9 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.
Median household income $98,750 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.
- Owner occupied
- 949 units
- Renter occupied
- 139 units
- Vacancy rate
- 5.8%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.
| School | Type | Grades | District |
|---|---|---|---|
| Knowlton Township Board of Education | Public | Pre-K–6 | Knowlton Township School District |
Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.
Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.
Community
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Places in Knowlton Township
- ColumbiaCensus designated place
- DelawareCensus designated place
- HainesburgCensus designated place
Nearby towns
- ColumbiaCensus designated place
- HainesburgCensus designated place
- DelawareCensus designated place
- Mount HermonCensus designated place
- Hope TownshipTownship
- Blairstown TownshipTownship
- HopeCensus designated place
- Silver LakeCensus designated place
- BridgevilleCensus designated place
- Mountain LakeCensus designated place
Other towns in Warren County
- AllamuchyCensus designated place
- Allamuchy TownshipTownship
- AlphaBorough
- AndersonCensus designated place
- AsburyCensus designated place
- BeattystownCensus designated place
- BelvidereTown
- Blairstown TownshipTownship
- BlairstownCensus designated place
- BrainardsCensus designated place
Something wrong here? Request a correction. A person checks it against the source within five business days.
- Type
- Township
- County
- Warren County
- Land area
- 24.7 sq mi
- Water area
- 0.60 sq mi
- Population
- 2,939 (2024 estimate)
- Households
- 1,088
- Median age
- 42.9
- Median household income
- $98,750
- Median home value
- $320,400
- Median gross rent
- $1,795
- Owner-occupied homes
- 87.2%
- Bachelor’s degree or higher
- 28.7%
- Foreign-born residents
- 5.4%
- Mean commute to work
- 35.2 minutes
- Census GEOID
- 3404137320
Sources: Census Gazetteer 2025: county subdivisions, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 34, retrieved November 14, 2026; American Community Survey 5-year data profile 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.
- ZIP codes
- 07825, 07832, 07833
- Metro area
- Allentown-Bethlehem-Easton, PA-NJ
Sources: Census 2020 ZCTA relationship file: ZCTAs to county subdivisions, retrieved November 14, 2026; Census Gazetteer 2025: metropolitan and micropolitan areas, retrieved November 14, 2026.