Union County

Union County sits at a median home price of $444,831 against median rent of $2,075, producing a gross rent-to-price ratio of 0.056, or about 5.6 cents of annual rent per dollar of purchase price. That puts it squarely in appreciation territory on the cash-flow vs. appreciation spectrum, and the investment estimate confirms it: at 6.85% financing with 20% down, the modeled position runs a cap rate of 3.64% and a cash-on-cash return of negative 11.52%, with estimated monthly cash flow of negative $982. These are not rounding errors. The market is telling you clearly that the math does not work for a leveraged cash-flow buyer at today's prices and rates, and the county's 0.7% year-over-year price decline suggests the appreciation story is also stalling, at least in the near term. The affordability index of 36 means renters and buyers alike are stretched, which caps how much further rents can run without commensurate income growth in the area.

The overall score of 48 out of 100, landing at the 19th national percentile across 1,000 counties, reflects exactly this tension. A cash-flow buyer should not be underwriting Union County at current prices: the negative $982 monthly figure is not a mild shortfall to be optimized away with a better property manager; it is a structural gap driven by a purchase price that has outpaced rental income. An appreciation buyer can make a thesis here, given the county's proximity to the Charlotte metro and its population base of 240,000, but with prices already down 0.73% year over year and an affordability index of 36, that thesis requires patience and confidence that the demand fundamentals recover. The most plausible operator here is a value-add buyer who can acquire below the median, force appreciation through renovation, and refi or sell before carrying costs erode returns, since the hold-period cash flow is punitive at conventional financing levels.

The tax and insurance carry deserves attention even though the North Carolina state-average effective property tax rate of 0.84% is flagged as normal. On a $444,831 acquisition, that rate produces $3,737 in annual property taxes and $1,246 in estimated insurance, combining to $415 per month before you pay a dollar of debt service. Add that to the $2,332 monthly mortgage and $726 in other estimated expenses, and total monthly outlays reach roughly $3,473 against $2,075 in rent. The rate itself is not alarming compared to high-tax states, but on a high-priced asset it still adds up. As always, the 0.84% is a state-average estimate per Tax Foundation 2024 data, and your actual county and township levy in Union County may differ materially, so confirm the local mill rate before closing.

On the risk side, the affordability index of 36 is the number worth watching closely. When buyers and renters are already stretched at current price levels, any upward pressure on insurance, taxes, or HOA fees, which are common in the master-planned communities prevalent in this submarket, can quickly make properties unrentable at the yields needed to break even. The 0.73% price decline year over year is not catastrophic, but it does indicate that the appreciation premium baked into these prices is at least pausing, and a buyer relying on that appreciation to justify negative carry is assuming a risk that the data does not currently support.

Compared to its neighbors, Union is the highest-priced market in the dataset at $444,831, and it does not compensate for that price with a higher rent-to-price ratio. Mecklenburg County, which includes Charlotte, sits at $416,475 with a rent-to-price ratio of 0.050, modestly worse on yield but meaningfully cheaper on entry. Durham County comes in at $394,861 with a 0.049 ratio, again weaker on yield but with a lower nominal exposure. The two counties where the numbers actually work for income-focused investors are Cleveland County at $202,617 and a 6.86% rent-to-price ratio, and Caldwell County at $231,573 with a 5.56% ratio matching Union but at roughly half the purchase price, leaving far more margin for debt service. Both Cleveland and Caldwell score 51 overall versus Union's 48. An investor should choose Union over its neighbors only if they are specifically betting on Charlotte suburban price appreciation, have a genuine value-add angle below the median, or can source off-market product at a meaningful discount to $444,831. If the goal is income from day one, Cleveland County offers the clearest path in this peer set.