Sussex County

Sussex County sits at a gross rent-to-price ratio of 6.17%, which places it in the lower range of what a buy-and-hold investor would need to pencil out a deal at current financing costs. The 4.01% cap rate tells the fuller story: at a 6.85% mortgage rate, you are buying yield below your cost of debt, which is why the modeled cash-on-cash return lands at negative 9.9% and monthly cash flow at negative $845 on a 20% down acquisition. Year-over-year home price appreciation of 2.69% is real but not enough to offset that carry deficit in the near term. The overall score of 58 out of 100, landing at the 46th national percentile and 9th out of 21 New Jersey counties, is a fair summary of a market that sits firmly on the appreciation end of the spectrum rather than the cash-flow end. The appreciation score of 77 is the standout number here; the cash-flow score of 62 sounds passable until you see the actual modeled figures.

The investor this market suits is someone buying for medium-to-long-term price gain rather than current income, ideally with either a larger down payment to reduce debt service or access to below-market financing that the model assumptions do not include. At a $445,283 median purchase price with a $2,291 median rent, a buyer putting 35-40% down could move the monthly math meaningfully, though even then the 4.01% cap rate is the ceiling on unlevered yield. A value-add operator hunting for forced appreciation through renovation has a reasonable argument here given the appreciation score and the lower price point relative to neighboring Morris ($678K) and Hunterdon ($615K) counties, but the thin rent-to-price ratio means the exit multiple needs to work harder than the in-place income. A pure cash-flow buyer looking for day-one positive returns should look elsewhere in the state.

The economic anchor and employer data for Sussex was not provided, so the demand drivers behind the rental market cannot be assessed with specificity here. What the population figure of 144,808 does establish is a smaller, more rural county by New Jersey standards, which carries its own implications for liquidity and tenant depth discussed below.

The tax and insurance picture is a serious underwriting consideration that deserves its own line on every proforma you build here. At a 2.49% state-average effective property tax rate, New Jersey is the highest-tax state in the country and Sussex sits inside that regime. The modeled annual property tax alone comes to $11,088, combined with $935 in annual insurance for a combined monthly tax-and-insurance burden of $1,002. That $1,002 figure, baked into the $802 estimated monthly expense load alongside maintenance and other costs, is a structural drag that does not compress when rents soften. Worth being explicit: the 2.49% figure is a state-average estimate from Tax Foundation 2024 data, and your actual county or township rate may differ, so pull the current municipal levy before closing.

The primary risks here are market size and concentration. A population of 144,808 in a largely rural county means tenant demand is thinner than in a suburban or urban New Jersey market, vacancy recovery after a turnover takes longer, and the buyer pool at resale is narrower. A stability score of 50 reflects this. The affordability index of 36 out of 100 also signals that the existing population is stretched relative to home prices, which can suppress organic rent growth and complicate tenant qualification screening, particularly for higher-priced units near the $2,291 median ask.

Against its neighbors, Sussex offers the lowest median home price of the group at $445,283, roughly $86K below Mercer, $83K below Middlesex, $169K below Hunterdon, and $232K below Morris. That entry point matters for a capital-constrained buyer or one seeking lower absolute dollar exposure. However, Mercer County is the one neighbor worth examining as a direct alternative: at a $431,761 median price it is actually cheaper than Sussex, carries a significantly better rent-to-price ratio of 6.99% versus Sussex's 6.17%, and scores 60 overall versus Sussex's 58. Ocean County's rent-to-price ratio of 6.22% is marginally better than Sussex's and comes with a higher rent base at $2,735. Morris and Hunterdon both have worse rent-to-price ratios (5.02% and 4.93% respectively) at far higher prices, making them purely appreciation plays with even worse carry math. Choose Sussex over its neighbors if you are prioritizing the lowest absolute price entry in the region and believe in local price appreciation continuing; choose Mercer if current income efficiency matters more at a similar price point.