Investing in Rock Island, IL — Market Analysis
Rock Island is one of the lower-basis entry points in Illinois, with a median home price around $130,000. As a primary metro, Rock Island gives you the deepest tenant pool in Rock Island County — the kind of market where a vacancy is measured in days rather than months, and where lenders are most comfortable with appraiser rent schedules because there are hundreds of comparable leases to draw on.
Buying a rental property in Rock Island on a DSCR loan means putting a minimum of $26,000 down (20% of purchase price), leaving a loan amount of $104,000 at 80% LTV. At current DSCR investor pricing near 7.50%, principal and interest on that loan runs about $727 per month. Add Rock Island County property taxes of roughly $225/month and landlord insurance of about $52/month, and your all-in PITIA lands near $1,005/month. That PITIA figure — not the P&I — is what the lender divides your rent into.
A long-term lease in Rock Island should generate roughly $975/month in gross rent. Against a PITIA of $1,005, that produces an estimated DSCR ratio of 0.97x. That falls just short of the 1.0 minimum. This is a very common outcome in Rock Island and it does not kill the deal: moving to 25% down ($32,500) cuts the payment enough to close most of the gap, and several shelves will fund down to 0.75 with a rate add-on.
Two Illinois-specific items to build into your model: Illinois has the second-highest effective property tax rate in the country, and Cook County's assessment appeals cycle means your tax line can swing materially year to year. Chicago also has a strong tenant-protection ordinance with extended notice periods that lengthen turnover. In Rock Island specifically, effective property tax on investment property runs around 2.08% of value annually — about $2,704 a year at the median price — and landlord insurance near $624 a year.
On return metrics, Rock Island pencils to an estimated cap rate of 5.58% using a 62% NOI margin, and a gross rent multiplier of 11.1. Monthly cash flow on a long-term lease at 20% down is estimated at $30 negative. Negative cash flow at 20% down is common in appreciation-led markets; investors here typically increase the down payment, buy below median, add a unit, or run the property short-term to close the gap.

