Real Estate Investing in Warren County, Illinois

Everything the listing leaves out — vacancy, rent trend, cap rate, landlord climate. All free.

6 ZIP codes • Population: 15,318

Should you buy in Warren County, IL? Our answer, based on the numbers below.

🏠 For Homebuyers
GOOD FIT
Grade B (75/100)

Solid choice β€” values are growing steadily and the market is stable enough to buy with confidence.

πŸ“ˆ For Investors
MIXED
2.7 / 5 (47/100)

A middle-of-the-road market. Workable, but the best opportunities may be nearby ZIPs rather than this one.

⚠️ Risks to Know
1 flag
  • Elevated vacancy: 10.5% vacancy may signal weakening demand.

What’s happening in Warren County, IL?

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2.7/ 5

Investability

County-wide average

3.0/ 5

Appreciation

5.2% 5yr CAGR

5.0/ 5

Landlord Climate

Regulatory friendliness

Avg Investability β˜…β˜…β˜…β˜…β˜…
Avg Home Value $136,285
Avg Monthly Rent $855
ZIP Codes 6

Investing in Warren County Real Estate

This is a distressed-leaning county in Illinois: Warren has 6 cities, 6 ZIPs, and investment math that only works for investors with genuine local understanding.

Warren is the kind of county where the cap rate on paper and the cap rate realized tend to diverge. clearly out-of-state capital should be especially careful with carry-in assumptions.

Warren County's population trends and income levels suggest a region where affordability is strained, constraining how aggressively rents can rise without hurting collections.

A great house in the wrong ZIP is still a bad deal — screen every market by cash flow & cap rate.
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Landlord Ground Truth

Real numbers from people who own or manage rentals in Warren County, IL. Anonymous, moderated, never written by AI.

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Avg Home Value
$136,285
Avg Monthly Rent
$855
1% Rule
βœ— Below
Landlord Friendly (IL)
β˜…β˜…β˜…β˜…β˜…

πŸŽ“ Colleges & Universities in Warren County

1 College 727 Students
C
Monmouth College
4-Year Private Β· 727 students

Cities in Warren County

ZIP Codes in Warren County, IL

Screen every market in Warren County

Filter this county’s ZIPs by cap rate, vacancy, appreciation and 30+ more criteria, and export your shortlist to CSV — with the Investor plan ($19/mo). Add weekly alerts when these markets move with Investor Pro+.

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Frequently Asked Questions About Warren County

What is the best play in, IL?

The best-fit strategy in, IL is careful cash-flow rentals with hands-on management. That approach the rent and price profile of the market.

What are vacancy rates like in, IL?

, IL carries elevated vacancy risk. Expect steady absorption at market rents of $855/mo.

Where do rents currently stand in, IL?

Expect rents around $855/mo per month in, IL. With home values at $136K, the yield math works out to reasonable levels for rental investors.

Is housing expensive in, IL?

Typical homes in, IL go for around $136K. The 5-year CAGR of 0.0% measured price movement.

Community Ratings

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