County or equivalent · 42085
Mercer County, Pennsylvania
Annual housing permits and reporting coverage
- Published estimate · 2025
- 90
- Reported only · 2025
- 73
- Added by estimation · 2025
- 17
Reported and estimated units by year
| Year and source | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| 2023 Census file | 65 | 60 | 5 |
| 2024 Census file | 76 | 61 | 15 |
| 2025 Census file | 90 | 73 | 17 |
2024 to 2025 · published estimate +14 units · reported only +12 · added by estimation +2. 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 | 78 | 61 | 17 |
| Two units | 0 | 0 | 0 |
| Three or four units | 0 | 0 | 0 |
| Five or more units | 12 | 12 | 0 |
Local housing and rent context
| Measure | Estimate and margin |
|---|---|
| Housing units · Census table B25001 | 50,930 ± 117 |
| Median gross monthly rent · Census table B25064 | $843 ± $35 |
| Gross rent at least 30% of income · Census table B25070 | 45.7% ± 3.6 percentage points |
| Gross rent at least 50% of income | 22% ± 2.9 percentage points |
| Estimated households with a computed rent-to-income ratio | 11,419 |
The 2025 permit estimate amounts to 1.8 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 51,089 in 2024 to 51,145 in 2025 (+56 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.
- Clark boroughPermit office 42115600 · Mercer County · 0 authorized units
- Coolspring townshipPermit office 42139900 · Mercer County · 3 authorized units
- Deer Creek townshipPermit office 42159100 · Mercer County · 1 authorized units
- Delaware townshipPermit office 42161500 · Mercer County · 2 authorized units
- East Lackawannock townshipPermit office 42190300 · Mercer County · 3 authorized units
- Fairview townshipPermit office 42223900 · Mercer County · 2 authorized units
- FarrellPermit office 42227500 · Mercer County · 1 authorized units
- Findley townshipPermit office 42231700 · Mercer County · 4 authorized units
- Fredonia boroughPermit office 42247900 · Mercer County · 0 authorized units
- French Creek townshipPermit office 42250900 · Mercer County · 2 authorized units
- Greene townshipPermit office 42269800 · Mercer County · 0 authorized units
- Greenville boroughPermit office 42271900 · Mercer County · 0 authorized units
- Grove City boroughPermit office 42274900 · Mercer County · 0 authorized units
- Hempfield townshipPermit office 42295000 · Mercer County · 1 authorized units
- HermitagePermit office 42297100 · Mercer County · 5 authorized units
- Jackson Center boroughPermit office 42318100 · Mercer County · 0 authorized units
- Jackson townshipPermit office 42321100 · Mercer County · 3 authorized units
- Jamestown boroughPermit office 42324400 · Mercer County · 0 authorized units
- Jefferson townshipPermit office 42328600 · Mercer County · Latest year unavailable
- Lackawannock townshipPermit office 42346600 · Mercer County · 4 authorized units
- Lake townshipPermit office 42348400 · Mercer County · 2 authorized units
- Liberty townshipPermit office 42369100 · Mercer County · 16 authorized units
- Mercer boroughPermit office 42421000 · Mercer County · 0 authorized units
- Mill Creek townshipPermit office 42432700 · Mercer County · Latest year unavailable
- New Lebanon boroughPermit office 42470500 · Mercer County · 2 authorized units
- New Vernon townshipPermit office 42473800 · Mercer County · Latest year unavailable
- Otter Creek townshipPermit office 42508000 · Mercer County · Latest year unavailable
- Perry townshipPermit office 42527800 · Mercer County · 0 authorized units
- Pine townshipPermit office 42536800 · Mercer County · 8 authorized units
- Pymatuning townshipPermit office 42557500 · Mercer County · Latest year unavailable
- Salem townshipPermit office 42588700 · Mercer County · 1 authorized units
- Sandy Creek townshipPermit office 42592000 · Mercer County · 0 authorized units
- Sandy Lake boroughPermit office 42592300 · Mercer County · 0 authorized units
- Sandy Lake townshipPermit office 42592600 · Mercer County · 2 authorized units
- SharonPermit office 42605200 · Mercer County · Latest year unavailable
- Sharpsville boroughPermit office 42606400 · Mercer County · 0 authorized units
- Sheakleyville boroughPermit office 42606700 · Mercer County · 0 authorized units
- Shenango townshipPermit office 42608200 · Mercer County · 3 authorized units
- South Pymatuning townshipPermit office 42632800 · Mercer County · 3 authorized units
- Springfield townshipPermit office 42645700 · Mercer County · 1 authorized units
- Stoneboro boroughPermit office 42654100 · Mercer County · 1 authorized units
- Sugar Grove townshipPermit office 42658000 · Mercer County · 0 authorized units
- West Middlesex boroughPermit office 42757600 · Mercer County · Latest year unavailable
- West Salem townshipPermit office 42763000 · Mercer County · 3 authorized units
- Wilmington townshipPermit office 42777700 · Mercer County · 14 authorized units
- Wolf Creek townshipPermit office 42781900 · Mercer County · 2 authorized units
- Worth townshipPermit office 42786700 · Mercer County · 1 authorized units
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