McHenry County

McHenry County sits at a gross rent-to-price ratio of 6.50%, which places it firmly in appreciation territory rather than cash-flow territory. The 4.23% cap rate tells the same story: you are not buying yield here, you are buying a market where home prices grew 4.72% year-over-year on a $367,683 median. The cash-flow math at current financing rates confirms this. At 6.85% on a 20% down conventional loan, the monthly mortgage is $1,927 against median rent of $1,993, a spread of only $66 before a single dollar of operating expense. Add estimated monthly expenses of $697 and the model produces negative $632 in monthly cash flow, a cash-on-cash return of -8.97%. That number is not a flaw in the underwriting; it is the market telling you exactly what it is.

The investor this market suits is one who is buying into a Chicago metro suburb with meaningful appreciation potential and can tolerate or offset the carry. McHenry scores 85 on appreciation and only 65 on cash flow, which is a clear signal about where the return story lives. An appreciation buyer with a longer hold horizon, comfortable with a negative monthly carry that gets compressed over time as rents grow and a fixed mortgage payment stays flat, is the natural fit. A value-add operator who can force equity through renovation and refinance or sell into a market with a $367,683 median has a plausible path as well. A pure cash-flow buyer has the wrong tool for this market: a 6.50% gross yield with $778 per month in combined tax and insurance alone (see below) does not leave room for positive returns at today's rates without a meaningful purchase discount.

The tax and insurance burden here is the single most important line on any underwrite. Illinois carries a state-average effective property tax rate of 2.27%, flagged as very high, and McHenry County is part of a state that consistently ranks among the highest property tax jurisdictions in the country. On the median purchase price that rate produces $8,346 in annual property taxes, or $695 per month. Add $83 per month in insurance and the combined tax-and-insurance load is $778 monthly before mortgage, maintenance, vacancy, or management. That figure alone consumes 39% of the $1,993 median rent. Every investor underwriting a deal here must model this explicitly; it is not a rounding error. The caveat here, as with any state-average figure, is that the 2.27% reflects a Tax Foundation 2024 state-average estimate, and county-level or township-level rates in McHenry can differ materially, in either direction. Pull the actual PIN-level tax bill on any specific property before finalizing your numbers.

Stability scores at 50, which is the middle of the range and worth taking seriously. McHenry's affordability index of 51 suggests the market is not cheap relative to local incomes, and a population of 311,133 means this is a real suburban market with genuine demand depth, but not a primary urban core with multiple demand drivers. McHenry is an outer-ring suburb of Chicago; rental demand is tied to the broader metro labor market, commuter access, and the relative cost of alternatives closer to the city. If remote work adoption reverses and commute tolerance shrinks, outer-ring suburbs face more demand pressure than closer-in alternatives. No vacancy or crime data was provided, so those dimensions cannot be assessed here.

Comparing McHenry to its neighbors, the choice becomes cleaner. DuPage County is the most direct comparable: higher median price ($416,478) with a lower rent-to-price ratio (5.88% versus McHenry's 6.50%) and a nearly identical overall score of 66 versus McHenry's 64. McHenry is the better yield on paper, but neither county cash-flows comfortably at current rates. Adams County offers a 6.74% rent-to-price ratio, a median home price of only $174,680, and an overall score of 68, making it the stronger cash-flow candidate among the neighbors shown, though it is geographically distant from the Chicago metro and represents a fundamentally different market thesis. Bond County scores 67 at a $154,738 median but no rent data is provided. Greene and Calhoun are smaller markets with much lower price points but also lower scores, and again no rent data is available to evaluate yield. Within the Chicago suburban tier, choose McHenry over DuPage if you want a marginally better gross yield and a somewhat lower entry price while staying in the same metro demand pool. Choose McHenry over Adams if your thesis is metro Chicago appreciation rather than downstate Illinois income. If positive cash flow from day one is the requirement, none of the Illinois neighbors shown, including McHenry, close that gap cleanly at current interest rates and Illinois's tax load.