Investing in Decatur, IL — Market Analysis
Decatur is one of the lower-basis entry points in Illinois, with a median home price around $110,000. Decatur is a smaller Illinois market. Entry prices are low and gross rent-to-price ratios are among the best in the state, but appraisers have fewer rent comps to work with, and a single vacancy is a much larger share of annual income than it would be in a metro.
Buying a rental property in Decatur on a DSCR loan means putting a minimum of $22,000 down (20% of purchase price), leaving a loan amount of $88,000 at 80% LTV. At current DSCR investor pricing near 7.50%, principal and interest on that loan runs about $615 per month. Add Macon County property taxes of roughly $191/month and landlord insurance of about $44/month, and your all-in PITIA lands near $850/month. That PITIA figure — not the P&I — is what the lender divides your rent into.
A long-term lease in Decatur should generate roughly $1,025/month in gross rent. Against a PITIA of $850, that produces an estimated DSCR ratio of 1.21x. That clears the standard 1.0 minimum, which is the threshold most DSCR shelves require for their base pricing. There's not much cushion, so a tax reassessment or an insurance increase could push the file into a lower tier — worth stress-testing before you write the offer.
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 Decatur specifically, effective property tax on investment property runs around 2.08% of value annually — about $2,288 a year at the median price — and landlord insurance near $528 a year.
On return metrics, Decatur pencils to an estimated cap rate of 6.93% using a 62% NOI margin, and a gross rent multiplier of 8.9. Monthly cash flow on a long-term lease at 20% down is estimated at $175 positive. A cash-flowing file at 20% down is the exception in most markets right now, and it gives you room to absorb a rate that doesn't come down.

