Story County

Story County sits at a 3.32% cap rate with a gross rent-to-price ratio of 5.12%, which places it firmly in appreciation territory rather than cash-flow territory. At a $292,064 median purchase price against $1,245 in median monthly rent, the numbers don't close on a leveraged basis: the model underwrite shows negative $722 per month in cash flow and a cash-on-cash return of -12.9% at 6.85% financing with 20% down. Home price appreciation of 2.68% year-over-year is real but modest, and the affordability index of 67 suggests the market isn't so stretched that appreciation is about to stall, though it's also not deeply cheap. This is a market where you're banking on price gains and tenant stability, not on the rent check covering your carry.

That profile makes Story County the wrong county for a cash-flow-first buyer at current interest rates. The cap rate of 3.32% is well below the cost of debt, so leverage works against you every month. Where it could make sense is for an appreciation-oriented buyer willing to subsidize negative carry in exchange for a college-town demand floor, or for a value-add operator who can lift rents above the $1,245 median through renovations or better unit positioning. The affordability score of 67 means the market is accessible enough that a rent bump doesn't immediately price out tenants, but the spread between rent and mortgage ($1,531 mortgage vs. $1,245 rent before any expenses) tells you the gap is structural, not something you close with a $50 rent increase.

Iowa State University anchors rental demand in Story County in a way that most comparably sized Iowa counties simply don't have. A large research university creates a persistent tenant base, including graduate students, faculty, and staff, that turns over predictably and sustains occupancy through economic downturns better than a purely employer-driven market would. That stability helps explain the 77 appreciation score and the relatively contained affordability index given the median price; demand here is structural rather than cyclical. On the other hand, university-tied markets carry their own timing risks: enrollment shifts, remote-learning trends, or demographic dips in the college-age population can compress demand faster than a diversified employment base would.

The carry costs deserve their own line in any underwrite. The Iowa state-average effective property tax rate is 1.53%, which the data flags as high, and that's before accounting for the fact that actual county and township rates may differ from that state-average estimate. At $292,064 purchase price, that translates to $4,469 in annual property taxes. Combined with $993 in estimated annual insurance, you're looking at $455 per month in tax and insurance alone before mortgage principal, interest, or any operating expenses. That $455 sits against $1,245 in gross rent, meaning 36.5 cents of every rent dollar is consumed by tax and insurance before you pay the bank. Buyers accustomed to lower-tax markets in the South or Mountain West will feel this immediately.

The concentration risk here is real and worth naming plainly. A market of 98,573 people with its investment thesis tied substantially to a single university means that any institutional change at Iowa State, whether in enrollment policy, remote-learning expansion, or state funding, carries outsized consequences for local rental demand. The stability score of 50, sitting right at the national midpoint, reflects that this isn't a diversified metro economy. There is no secondary anchor visible in the provided data to backstop demand if university-related tenant demand softens.

Against the neighbor set, Story compares reasonably well on appreciation potential but is not a cash-flow standout. Polk County, at a $274,734 median price and a rent-to-price ratio of 5.28%, actually posts a modestly better yield picture than Story at 5.12%, and its overall score of 60 edges Story's 59, making it the more balanced option if you want metro Iowa exposure. Bremer County's rent-to-price ratio of 3.36% is the worst in the comparison set, making it a clear pass for yield-oriented buyers. Marion County at 4.45% sits in the middle tier. Story's 77 appreciation score is almost certainly its highest relative advantage in this peer group, which means you choose Story over its neighbors when you're prioritizing price growth and university-driven demand stability over current yield, and you choose Polk when you want a larger, more diversified market with a slightly better rent ratio and similar pricing.