Summit County

Summit County checks every box for an expensive, low-yield mountain market. The median home price sits at $969,935, the gross rent multiplier implied by a $3,517 monthly rent works out to a rent-to-price ratio of just 0.0044, and the cap rate on a standard acquisition comes in at 2.83%. Run the full mortgage math at 6.85% on a 20% down payment and you get a $5,084 monthly mortgage against $3,517 in rent and $1,231 in estimated expenses, producing negative $2,798 in monthly cash flow and a cash-on-cash return of negative 15.05%. Year-over-year home price growth was 0.45%, which is roughly flat in real terms. The overall score of 37 out of 100, landing at the 2nd national percentile and 49th out of 62 Colorado counties, tells you this is not a market that rewards conventional underwriting.

The investor profile this market suits is narrow: someone betting on long-term asset appreciation in a constrained geographic supply environment, who can absorb significant monthly negative carry out of other income, and who may also be capturing personal or short-term rental use value not reflected in the long-term rent figure. A cash-flow buyer has no business here. The numbers make that blunt: at negative $2,798 per month, you are writing a check to own this asset every month, roughly $33,576 per year on a $193,987 down payment, which explains the negative 15.05% cash-on-cash. Even a value-add operator faces limited room to improve yield when the purchase price is nearly $970,000 and rents are capped by the local market at $3,518. The appreciation score of 54, Summit's highest subscored category and the only one that clears 50, is where the investment thesis has to live or die.

Colorado's state-average effective property tax rate is estimated at 0.51%, which is low by national standards, and Summit's annual tax bill on this purchase price comes to roughly $4,947. Combined with insurance estimated at $3,201 annually, the monthly tax-and-insurance carry is $679. That is actually a relative tailwind given the asset price: in a higher-tax state, a near-$1 million property would generate a far heavier escrow burden. The low property tax flag is a meaningful line item when you are already running negative cash flow, and investors should treat it as a partial offset to the carry pain. That said, the honest caveat here is that 0.51% is a state-average estimate and the actual county or township rate in Summit may differ, so verify the specific mill levy before finalizing your underwrite.

The concentration risk in Summit County is real and worth naming plainly. A population of 30,955 means the rental demand pool is small and heavily tied to ski tourism, seasonal employment, and second-home buyers. That demand base is not diversified across industries the way a metro market would be. A down season, a shift in remote-work migration patterns, or a prolonged period of low snowpack could meaningfully affect both occupancy and achievable rents. The affordability index of 2 out of 100 reflects how few people can actually afford to buy here, which theoretically supports rental demand, but it also means the renter pool capable of paying $3,500-plus per month is itself thin and competing with short-term rental operators for the same units.

Compared to the neighboring counties in the data, Summit is the highest-priced option and does not compensate with a proportionally higher rent-to-price ratio. Denver County at $532,579 median and a 0.0419 rent-to-price ratio, Boulder at $702,437 and 0.0421, and Arapahoe at $507,157 and 0.0423 all offer better yield ratios at lower absolute entry points, and Arapahoe's overall score of 40 edges out Summit's 37. Jefferson County's 0.0375 ratio is weaker, and Routt County at $1,086,367 median is even more expensive with a lower rent-to-price ratio of 0.0380 and an overall score of 36. The case for choosing Summit over Denver, Boulder, or Arapahoe comes down entirely to whether you believe Summit's geographic scarcity, its mountain resort positioning, and the potential for short-term rental income (not reflected in these long-term rent figures) justify absorbing roughly $970,000 in purchase price and nearly $33,000 in annual negative carry. If your thesis is conventional long-term rental income, one of the Front Range counties is a more defensible underwrite at half to two-thirds the price.