Best Places to Buy Rental Property in Illinois (2026)

Illinois has something most states do not: fifteen city markets that each closed 100 or more homes in the past six months at a median sold price below $150,000. Before the list, one thing needs to be said plainly, because most articles on this topic quietly skip it.

What this ranking measures, and what it does not

This ranking is built on two facts we actually have for every city below: the median sold price over the past six months, and the number of closings in that period. That is entry cost and liquidity. We do not have rent data for these cities, so you will not find rent estimates, rent-to-price ratios, cap rates, or cash-on-cash returns anywhere in this article. Publishing those numbers without the underlying data would be inventing them, and an invented rent figure is the single fastest way to lose money on a rental purchase. Rent and cash flow have to be verified per property, on the specific address, using local rent research. Once you have a real rent number for a real property, put it through the rental property calculator and the deal analyzer to see whether the deal works. Entry price and transaction volume are still worth ranking on, because they set the two constraints every rental purchase lives under: how much capital gets tied up, and how hard it will be to sell when you want out.

The ranking, cheapest entry price first

1. Cahokia, $41,252 median, 105 closings

The cheapest entry point in the state by a wide margin, and the one that demands the most scrutiny. A $41,252 median means an all-cash purchase is realistic for many buyers, which changes the financing math entirely. It also means conventional lenders are often reluctant at this price point, and that rehab cost can easily exceed purchase price. With 105 closings in six months, there is a functioning market, but it is thin enough that your exit depends on finding one of a small number of active buyers. Treat the low price as a signal to underwrite condition and exit carefully, not as a bargain confirmed.

2. Galesburg, $105,000 median, 152 closings

A step up into territory where financing is more available and the price still allows a modest total capital commitment. 152 closings over six months is a real but small market. Realistic tenant pool at this price point skews toward long-term local renters rather than transient demand.

3. Decatur, $110,000 median, 525 closings

This is the standout combination in the low tier. Decatur pairs a $110,000 median with 525 closings, more than three times the volume of most cities in its price range, and it also appears among the twelve highest-volume markets in the entire state. That volume matters for two reasons: comparable sales actually exist for valuation, and an exit does not depend on a handful of buyers. If you want a low entry price without the liquidity penalty, this is the profile to look at first.

4. Danville, $118,000 median, 132 closings

Similar entry cost to Galesburg with slightly lower volume. A small, functioning market where the entry price is the main draw. Underwriting condition matters disproportionately here, because at $118,000 a $30,000 rehab is a quarter of your basis again.

5. Rock Island, $124,500 median, 201 closings

Part of the Quad Cities area, and it shows in the volume: 201 closings is healthy for this price tier. Rock Island and Moline, further down this list at $148,000 and 258 closings, are adjacent markets, which means an investor can effectively treat the area as one larger pool of about 459 closings when assessing liquidity.

6. Alton, $125,000 median, 165 closings

Metro East, near the St. Louis side of the state. 165 closings supports reasonable comparable-sales work. The price point implies a workforce-renter tenant base rather than a premium one.

7. Mattoon, $126,000 median, 100 closings

Right at the volume threshold with exactly 100 closings. That is enough to be a real market and not enough to be a liquid one. Fine for a buy-and-hold investor with a long horizon, riskier for anyone who may need a quick exit.

8. Granite City, $131,000 median, 208 closings

Another Metro East market, and one of the better volume readings in the sub-$150,000 group at 208 closings. The combination of a low entry price and solid transaction count puts it in the same practical category as Rock Island.

9. Streator, $135,000 median, 108 closings

Small-market profile. 108 closings in six months means roughly eighteen sales a month across the whole city, so both your comparable set and your buyer pool are limited.

10. Mount Vernon, $136,950 median, 104 closings

Southern Illinois, similar structure to Streator. Entry cost is the attraction, volume is the constraint.

11. Calumet City, $139,900 median, 143 closings

A Chicago-area south suburb, which changes the calculus. The tenant pool here connects to metro Chicago employment rather than a single local economy, and proximity to a market that closed 11,395 homes at a $405,000 median is a structurally different setting than a standalone downstate city at the same price.

12. Peoria, $145,500 median, 692 closings

The highest-volume market on this list by a wide margin. 692 closings in six months makes Peoria the fourth-busiest city market in Illinois overall, and it still carries a $145,500 median. For an investor, that combination is unusual and valuable: comparable sales are plentiful, valuations are better supported, and exit liquidity is the best in this price band.

13. Sterling, $146,950 median, 124 closings

Northwestern Illinois, modest volume, entry price consistent with the rest of the tier.

14. Moline, $148,000 median, 258 closings

The Quad Cities partner to Rock Island, with stronger volume at 258 closings. Between the two, Moline offers better liquidity and Rock Island a slightly lower entry price.

15. Park Forest, $149,500 median, 102 closings

Another south-suburban Chicago market. Same structural point as Calumet City: metro-adjacent location, low entry price, modest local transaction count.

How to read this list

Group these fifteen into two categories. Decatur, Peoria, Moline, Granite City, and Rock Island combine sub-$150,000 medians with 200-plus closings, which means both cheap entry and workable liquidity. The rest offer the price but with volume near or just above 100 closings, where valuation support and exit options are thinner. Then verify everything on the specific address. Median price tells you nothing about a particular home's condition, and condition is where low-priced markets punish investors hardest. Resideline estimates condition from listing photos, shows the comparable sales behind every valuation so you can adjust them yourself, and freezes each estimate at listing before grading it against the real closing price on the public accuracy dashboard. Live valuations cover 31 states. Run the property through the ARV calculator if a rehab is involved, then the deal analyzer for the full purchase, rehab, and financing picture. The free tools all work without a signup. And do the rent research separately, on the actual property, before you rely on any cash-flow number.