County or equivalent · 34039
Union County, New Jersey
Annual housing permits and reporting coverage
- Published estimate · 2025
- 1,228
- Reported only · 2025
- 694
- Added by estimation · 2025
- 534
Reported and estimated units by year
| Year and source | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| 2023 Census file | 1,962 | 934 | 1,028 |
| 2024 Census file | 1,696 | 434 | 1,262 |
| 2025 Census file | 1,228 | 694 | 534 |
2024 to 2025 · published estimate -468 units · reported only +260 · added by estimation -728. The published estimate and reported-only count moved in opposite directions. This split describes the difference between the published columns.
What types of housing were authorized?
| Units in building | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| One unit | 162 | 94 | 68 |
| Two units | 40 | 38 | 2 |
| Three or four units | 27 | 24 | 3 |
| Five or more units | 999 | 538 | 461 |
Local housing and rent context
| Measure | Estimate and margin |
|---|---|
| Housing units · Census table B25001 | 212,385 ± 197 |
| Median gross monthly rent · Census table B25064 | $1,730 ± $23 |
| Gross rent at least 30% of income · Census table B25070 | 51.4% ± 1.5 percentage points |
| Gross rent at least 50% of income | 24.2% ± 1 percentage points |
| Estimated households with a computed rent-to-income ratio | 83,400 |
The 2025 permit estimate amounts to 5.8 authorized units per 1,000 housing units in the ACS estimate. The numerator and denominator cover different periods.
The Vintage 2025 Census housing stock estimate changed from 214,670 in 2024 to 215,662 in 2025 (+992 units). This is a separate model-based inventory estimate.
Permit offices listed under this county code
Use the office pages for their own histories and source coverage notes.
- Berkeley Heights townshipPermit office 34036000 · Union County · 71 authorized units
- Clark townshipPermit office 34089000 · Union County · 1 authorized units
- Cranford townshipPermit office 34102000 · Union County · 13 authorized units
- ElizabethPermit office 34135000 · Union County · 336 authorized units
- Fanwood boroughPermit office 34154000 · Union County · 2 authorized units
- Garwood boroughPermit office 34177000 · Union County · 8 authorized units
- Hillside townshipPermit office 34226000 · Union County · 9 authorized units
- Kenilworth boroughPermit office 34249000 · Union County · 2 authorized units
- LindenPermit office 34269000 · Union County · 47 authorized units
- Mountainside boroughPermit office 34347000 · Union County · 0 authorized units
- New Providence boroughPermit office 34356000 · Union County · 11 authorized units
- PlainfieldPermit office 34415000 · Union County · 246 authorized units
- RahwayPermit office 34428000 · Union County · 113 authorized units
- Roselle boroughPermit office 34452000 · Union County · 78 authorized units
- Roselle Park boroughPermit office 34451000 · Union County · 168 authorized units
- Scotch Plains townshipPermit office 34463000 · Union County · 90 authorized units
- Springfield townshipPermit office 34495000 · Union County · 3 authorized units
- SummitPermit office 34503000 · Union County · 23 authorized units
- Union townshipPermit office 34522000 · Union County · 3 authorized units
- Westfield townPermit office 34566000 · Union County · 4 authorized units
- Winfield townshipPermit office 34575000 · Union County · Latest year unavailable
Sources and definitions
How to read these figures
- The Census Building Permits Survey counts new privately owned housing units authorized by permits. One permit can cover multiple units. The counts describe authorizations, a stage before starts and completions.
- The published estimate includes reported units and Census estimates that fill gaps. The difference is calculated from those two columns. Reported-only units can include records from approved alternative sources. A missing report can leave an office without a usable count.
- County and state totals come from their own Census files. Permit offices can cover places across county lines or areas served by another jurisdiction. The office’s county field is used for navigation.
- ACS housing inventory and rents are survey estimates for 2020–2024. Gross rent includes rent and separately paid utilities or fuels. Rent burden is the share paying at least 30% of income among cash-rent households with a computed ratio. Margins are at 90% confidence. The margin for rent burden is approximate.
- Vintage 2025 county housing stock is a separate Census series. Its model uses building-permit data alongside other inputs. Read stock change and permits as separate measures.
Public sources retrieved November 10, 2026. Building Permits Survey annual data · Survey methodology · American Community Survey data · Download the comparison