NookLocal data
Pennsylvania Common Level Ratio, county by county
The Common Level Ratio (CLR) is published annually by the State Tax Equalization Board and expresses the ratio between assessed values and current market values in each county. It's how Pennsylvania bridges decades-old assessments and today's prices, used in assessment appeals and realty transfer tax on non-arm's-length transfers. Table below: 2025 ratios, applicable 2026-07-01 to 2027-06-30.
| County | CLR (assessed ÷ market) | CLR factor |
|---|---|---|
| Adams | 67.6% | 1.48 |
| Allegheny | 49.3% | 2.03 |
| Armstrong | 24.6% | 4.07 |
| Beaver | 74.6% | 1.34 |
| Bedford | 52.4% | 1.91 |
| Berks | 32.1% | 3.12 |
| Blair | 78.1% | 1.28 |
| Bradford | 16.7% | 5.99 |
| Bucks | 5.6% | 17.86 |
| Butler | 6.0% | 16.67 |
| Cambria | 11.2% | 8.93 |
| Cameron | 19.9% | 5.03 |
| Carbon | 17.2% | 5.81 |
| Centre | 16.4% | 6.10 |
| Chester | 30.6% | 3.27 |
| Clarion | 100.0% | 1.00 |
| Clearfield | 19.2% | 5.21 |
| Clinton | 51.8% | 1.93 |
| Columbia | 13.6% | 7.35 |
| Crawford | 15.8% | 6.33 |
| Cumberland | 64.1% | 1.56 |
| Dauphin | 38.3% | 2.61 |
| Delaware | 54.6% | 1.83 |
| Elk | 18.0% | 5.56 |
| Erie | 50.3% | 1.99 |
| Fayette | 40.6% | 2.46 |
| Forest | 11.4% | 8.77 |
| Franklin | 7.2% | 13.89 |
| Fulton | 20.2% | 4.95 |
| Greene | 36.4% | 2.75 |
| Huntingdon | 12.5% | 8.00 |
| Indiana | 70.4% | 1.42 |
| Jefferson | 19.1% | 5.24 |
| Juniata | 7.4% | 13.51 |
| Lackawanna | 100.0% | 1.00 |
| Lancaster | 50.0% | 2.00 |
| Lawrence | 45.5% | 2.20 |
| Lebanon | 52.1% | 1.92 |
| Lehigh | 47.0% | 2.13 |
| Luzerne | 87.7% | 1.14 |
| Lycoming | 43.7% | 2.29 |
| McKean | 48.1% | 2.08 |
| Mercer | 10.5% | 9.52 |
| Mifflin | 20.7% | 4.83 |
| Monroe | 44.0% | 2.27 |
| Montgomery | 29.8% | 3.36 |
| Montour | 44.8% | 2.23 |
| Northampton | 16.1% | 6.21 |
| Northumberland | 9.5% | 10.53 |
| Perry | 100.0% | 1.00 |
| Philadelphia | 94.3% | 1.06 |
| Pike | 8.9% | 11.24 |
| Potter | 16.1% | 6.21 |
| Schuylkill | 100.0% | 1.00 |
| Snyder | 9.2% | 10.87 |
| Somerset | 18.1% | 5.52 |
| Sullivan | 40.5% | 2.47 |
| Susquehanna | 16.3% | 6.13 |
| Tioga | 80.0% | 1.25 |
| Union | 42.9% | 2.33 |
| Venango | 48.8% | 2.05 |
| Warren | 100.0% | 1.00 |
| Washington | 68.0% | 1.47 |
| Wayne | 67.1% | 1.49 |
| Westmoreland | 8.7% | 11.49 |
| Wyoming | 11.1% | 9.01 |
| York | 48.8% | 2.05 |
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Know when the ratios change
STEB publishes new Common Level Ratios every summer. The weekly digest includes the updated table when it lands, plus new listings and price cuts across the Greater Philadelphia area in between.
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What the CLR means when you're buying
Multiply a county's CLR by a home's price and you get what its assessment "should" be at typical ratios. If the actual assessment sits far below that, a sale can invite a school-district assessment appeal that raises the bill; far above, and the owner may be over-paying and have a case to appeal down. Every NookLocal listing runs this check automatically, and our property tax calculator uses these ratios for purchase estimates. The same ratios power our school district value matrix, which ranks every district’s academics against its true tax rate.
Source: PA Department of Community & Economic Development, State Tax Equalization Board. Last verified 2026-07-04. Ratios change every July. This page tracks the current table.