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DP

Delaware Park, New Jersey

Census designated place in Warren County, New Jersey

Population, 2010 to 2020+5.6%

Population of Delaware Park at each census
Census	Population
2010	700
2020	739

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2010 Summary File 1: total population, place level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 34, retrieved November 14, 2026.

Delaware Park compared with its county and state

Delaware Park compared with its county and state, American Community Survey 2019-2023
Measure	Delaware Park	Warren County	New Jersey
Population	305	110,238	9,267,014
Median household income	$116,782	$99,596	$101,050
Median age	55.9	43.9	40.1
Median home value	$292,200	$323,100	$427,600
Bachelor’s degree or higher	46.6%	36.4%	42.9%
Foreign-born residents	0.0%	10.3%	23.5%
Owner-occupied homes	100.0%	74.3%	63.7%
Mean commute to work	30.8 minutes	34.1 minutes	30.9 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 34, retrieved November 14, 2026.

Household income in Delaware Park

Under $50k0%

$50k to $100k14.4%

$100k to $150k59.7%

$150k to $200k0%

$200k and over25.9%

Median household income $116,782 · 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, place level, state 34, retrieved November 14, 2026.

Housing tenure in Delaware Park

100%owner occupied

Owner occupied: 139 units
Renter occupied: 0 units
Vacancy rate: 0%

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, place level, state 34, retrieved November 14, 2026.

Community

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Nearby towns

PhillipsburgTown
Lopatcong TownshipTownship
Lopatcong OverlookCensus designated place
Upper PohatcongCensus designated place
GreenwichCensus designated place
AlphaBorough
Upper StewartsvilleCensus designated place
Greenwich TownshipTownship
HarmonyCensus designated place
Harmony TownshipTownship

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

All towns in Warren County

Something wrong here? Request a correction. A person checks it against the source within five business days.

Delaware Park at a glance

Type: Census designated place
County: Warren County
Within: Lopatcong Township
Land area: 0.25 sq mi
Water area: 0.00 sq mi
Population: 305 (2019-2023 estimate)
Households: 139
Median age: 55.9
Median household income: $116,782
Median home value: $292,200
Median gross rent: Not available yet
Owner-occupied homes: 100.0%
Bachelor’s degree or higher: 46.6%
Foreign-born residents: 0.0%
Mean commute to work: 30.8 minutes
Census GEOID: 3417260

Sources: Census Gazetteer 2025: places, retrieved November 14, 2026; American Community Survey 5-year data profile 2019–2023, place level, state 34, retrieved November 14, 2026.

ZIP codes and metro area

ZIP codes: 08865
Metro area: Allentown-Bethlehem-Easton, PA-NJ

Sources: Census 2020 ZCTA relationship file: ZCTAs to places, retrieved November 14, 2026; Census Gazetteer 2025: metropolitan and micropolitan areas, retrieved November 14, 2026.