Metro area in New Jersey · part of the New York-Newark, NY-NJ-CT-PA combined area
Trenton-Princeton, NJ
The Trenton-Princeton metro area authorized 1,164 new housing units in 2025. Permits fell 42% between 2024 and 2025, the second-steepest decline among the 85 metro areas of 250,000 to 499,999 residents. The housing bust cut annual permits by 84%, from 1,641 at the 2004–2006 high to 269 in 2009, the second-deepest drop among the 32 metro areas based in the Middle Atlantic states.
Single-family2–4 units5+ units
Houses or apartments
In Trenton, 46% of the units authorized in 2021–2025 were single-family houses and 53% were in buildings of five or more units, against 34% nationally. The closest match in building mix among the 386 other metro areas is Olympia (53% in five-plus buildings). That share has risen sharply since 2004–2006, when it stood at 25%. Units in five-plus buildings peaked in 2024 (1,183), single-family houses in 2005 (1,221).
Relative to population
With 399,289 residents in July 2025, Trenton authorized 2.7 units per 1,000 residents a year in 2021–2025, under the national 4.7. The metro areas with the nearest rates are Blacksburg (2.7) and Bangor (2.7).
Busiest permit offices
Across the metro area, 12 permit offices authorized new housing in 2021–2025. The busiest was West Windsor township, with 1,483 units or 28% of the total, followed by Hopewell township with 1,297. Among the three largest, West Windsor township put 57% of its units in five-plus buildings, Lawrence township 27%.
Share of the units authorized in the metro area, 2021–2025.
The wider New York-Newark region
The Census Bureau groups Trenton with 4 neighboring metro areas in the New York-Newark, NY-NJ-CT-PA combined area. Metro areas in it authorized 63,945 units a year in 2021–2025 (micropolitan parts not counted); Trenton accounted for 1.7%. The others, with their yearly averages: New York (58,185), Kiryas Joel (2,267), Bridgeport (2,007), Kingston (417).
Boom, bust and since
Trenton authorized the most units in 2024 (2,026); 2025 reached 58% of that. Its peak year is shared by 9 other metro areas, among them Asheville, Gainesville, GA, Bowling Green. The 2021–2025 pace of 1,069 units a year is 15% below the 2004–2006 pace.
Similar in size
| Metro area | 2004–2025 | 2025 units | Per 1,000 a year | 5+ share |
|---|---|---|---|---|
| Flint, MI | 444 | 1.1 | 11% | |
| Canton-Massillon, OH | 643 | 1.7 | 23% | |
| Beaumont-Port Arthur, TX | 960 | 3.0 | 6.4% | |
| Trenton-Princeton, NJ | 1,164 | 2.7 | 53% | |
| Tallahassee, FL | 2,742 | 7.0 | 48% |
Rates and shares: 2021–2025.
Every yearly figure behind the chart, split by building size: yearly-units.csv. State view: New Jersey. Counting rules.