Northumberland County

Northumberland County sits at the affordable end of the Pennsylvania spectrum, with a median home price of $175,473 and median rent of $971, producing a rent-to-price ratio of 0.66%. That ratio is meaningful context for the cap rate of 4.31%, which lands this market squarely in the middle of the cash-flow-versus-appreciation spectrum, leaning neither direction convincingly. Home price appreciation came in at 1.42% year-over-year, which trails inflation and signals that this is not a market where equity growth will do the heavy lifting. The affordability index of 92 confirms that entry costs are low relative to income, and the county ranks 208th out of 1,000 nationally, sitting at the 73rd percentile overall, which means roughly three-quarters of the counties in this dataset score worse on a composite basis. That is a reasonable floor, but the cash-flow score of 66 and stability score of 50 tell a more complicated story underneath the headline number.

The modeled underwrite at current rates illustrates the challenge clearly. At a 6.85% interest rate on a 20% down purchase, the monthly mortgage runs $920, estimated expenses add $340, and the resulting cash flow is negative $289 per month on a cash-on-cash return of -8.59%. That is a loss at current financing costs, full stop. This market does not pencil for a leveraged buy-and-hold investor paying close to list price on a stabilized asset. The investor this market suits is someone operating with meaningful equity, either through a larger down payment, a below-market acquisition, or a value-add play where the purchase price comes in materially below the $175,473 median. An all-cash or low-leverage buyer targeting the 4.31% cap rate as a yield floor is a better fit than someone putting 20% down at today's rates and expecting rent to cover carry costs.

The tax and insurance picture deserves a dedicated line on any underwrite for this county. Pennsylvania's state-average effective property tax rate is 1.54%, flagged as high, and that translates to $2,702 in annual property taxes on a median-priced asset, plus $404 in estimated insurance, for a combined $259 per month in tax and insurance alone. That figure is already baked into the $340 monthly expense estimate above, but investors accustomed to lower-tax states should understand that the $259 monthly carry cost in taxes and insurance represents roughly 27% of gross rent at the median. The 1.54% figure is a state-average estimate from Tax Foundation 2024 data, and actual county and township rates in Northumberland will differ, potentially materially, so pulling the specific millage rate for any target municipality before closing is not optional.

No economic anchors data was provided for Northumberland, so employer-specific demand drivers cannot be assessed here. The stability score of 50, sitting exactly at the midpoint of the scoring range, suggests the underlying economic base does not provide the kind of employer concentration or institutional demand that would de-risk vacancy exposure in a downturn. Investors should independently verify what is driving rental demand in Sunbury, Shamokin, or whichever submarket they are targeting, and should underwrite to a conservative occupancy assumption rather than assuming tight supply conditions will persist.

The neighbor comparison adds useful calibration. Lawrence County ($152,781 median, 0.786% rent-to-price ratio) and Fayette County ($140,767 median, 0.801% rent-to-price ratio) both offer meaningfully better rent-to-price ratios at lower entry prices, and both carry overall scores of 67 and 68 respectively, roughly matching Northumberland. An investor who is primarily chasing cash-flow yield has a stronger theoretical case in either of those two counties before financing costs are modeled. Somerset County ($169,583 median, 0.624% ratio) is a weaker cash-flow market than Northumberland and scores identically, offering no clear advantage. Erie County ($211,721 median, 0.593% ratio) and Dauphin County ($269,643 median, 0.597% ratio) both carry higher price tags and lower rent-to-price ratios, making them appreciation-oriented plays with even tighter cash-flow math at current rates. The case for choosing Northumberland over its neighbors comes down to a specific thesis: if an investor can source off-market acquisitions at a meaningful discount to the $175,473 median, the combination of low entry cost and a 4.31% stabilized cap rate creates a workable foundation. Without that discount, Lawrence or Fayette deserve a harder look first.