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Rock Island County, Illinois: Rust Belt Resilience Meets Surprising Affordability

There's a version of the Quad Cities story that focuses on what's been lost — the John Deere layoffs, the declining Mississippi River trade, the population that quietly drifted to Sun Belt metros over the decades. But the housing data for Rock Island County tells a more complicated, and ultimately more interesting, narrative: this is one of the most genuinely affordable mid-size markets in the American Midwest, and it's quietly heating up.

A median home price of $150,000 against a median household income of $66,768 produces a price-to-income ratio of just 2.2x — barely half the national benchmark of 4x. At a time when housing affordability dominates headlines from Phoenix to Portland, Rock Island County represents something increasingly rare: a place where a middle-class income actually buys a middle-class home.

Key Statistics

Stat	Value	Context
Median Home Price	$150,000	2.2x income ratio vs. 4x national benchmark
YoY Price Change	+10.7%	among the sharpest appreciation rates in Illinois
Rent Burden Rate	43.2%	well above the 30% healthy threshold
Homeownership Rate	68.6%	above the national average of ~65%

The Affordability Paradox

Here's the tension that defines Rock Island County right now: it's simultaneously one of Illinois's most affordable places to buy a home and one of its more stressed places to rent one. Nearly 22% of renters face severe rent burden — spending more than half their income on housing — despite a median rent of just $863. That's not a high-rent problem; that's a low-income problem concentrated among the county's renting class, which skews toward the 15.4% living below the poverty line and the 23.6% child poverty rate that signals generational stress in pockets of Moline, Rock Island city, and East Moline.

The 10.7% year-over-year price appreciation is the headline that should turn heads. For a market long characterized by stagnation, that kind of movement — outpacing many Illinois metros — suggests outside buyers, investors, and remote workers are beginning to discover what locals have known: you can get a solid 1,400-square-foot home for $122 per square foot here. Compare that to Chicago's near suburbs, where the same dollar buys roughly a third as much space.

An Older, Stable Stock in a Changing Market

The median year built of 1953 reflects Rock Island County's identity as a manufacturing-era community shaped by John Deere's global headquarters presence in neighboring Moline and the heavy industrial legacy along the Mississippi. These are brick bungalows and two-story frame houses with yards — not subdivisions built for the 2000s exurban boom. The 69.9% single-family home rate and 68.6% homeownership rate suggest a county where ownership culture runs deep, even as the economic base has shifted.

The education profile — where only 15.1% hold bachelor's degrees against a national rate closer to 35% — mirrors the county's blue-collar heritage. The 35.5% "some college" figure suggests a workforce that sought credentials but often landed in skilled trades or manufacturing rather than four-year degree pathways. With labor force participation at 61.2% and unemployment at 5.7%, the county isn't booming — but it isn't hollowing out either.

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What makes Rock Island County unique? Rock Island County sits at the convergence of Illinois, Iowa, and the Mississippi River, forming the Illinois anchor of the Quad Cities metro. It hosts the Rock Island Arsenal — one of the largest military installations in the Midwest and a major federal employer — which provides unusual economic stability for a region otherwise dependent on manufacturing cycles. That federal employment base helps explain the relatively strong homeownership rate and the cushion against the worst post-industrial decline seen elsewhere in the Rust Belt.

Is Rock Island County a good place to buy a home right now? For buyers, the math is compelling in ways that are increasingly rare nationally. The price-to-income ratio sits well below 3x, prices are rising fast enough to build equity, and the vacancy rate of 8.3% means inventory exists. The caution is that 10.7% annual appreciation may signal a market beginning to price out the very affordability that made it attractive — worth watching closely over the next 24 months.

Why is renter stress so high if rents are relatively low? The $863 median rent sounds modest, but when a significant share of renters earn well below the county's median income — particularly in lower-wage service and retail jobs — even below-market rents consume outsized portions of household budgets. It's a reminder that affordability is always relative to income, not just to price tags.