Kankakee County

IllinoisPopulation: 107,421
72
/100
Hold
#113 of 1,000 counties
#50 in Illinois (102 counties)
Analysis by RentalCalcs ResearchIndependent data + algorithm-driven scoring
Updated October 19, 2026Sources: Zillow ZHVI, Zillow ZORI, US Census ACS, Tax Foundation

Market Snapshot

$227,163
Median Home Price
1% below national median
$1,327/mo
Median Rent
8% below national median
7.01%
Rent-to-Price Ratio
Top 26% nationally
-$328
Est. Monthly Cash Flow
With 20% down at 6.9% rate

Kankakee market analysis

Kankakee County sits at a gross rent-to-price ratio of 7.01%, which places it squarely in the middle of the cash-flow-versus-appreciation spectrum, leaning slightly toward appreciation given an 89 appreciation score against a 70 cash-flow score. The 6.02% year-over-year home price gain on a median of $227,163 is meaningful, and the county's 86th national percentile ranking out of 1,000 counties suggests genuine relative strength. That said, the investment model at a 6.85% interest rate produces a cap rate of 4.56% against a monthly mortgage of $1,191, which is not enough spread to clear carry costs. Estimated cash flow comes in at negative $328 per month on a 20% down purchase, yielding a cash-on-cash return of -7.53%. This is a market where the numbers work on paper for appreciation and equity growth, not immediate cash flow at today's financing costs.

The investor best served by Kankakee is one who can stomach negative carry in the near term in exchange for 6%-plus annual price appreciation, or who brings more equity to the table to compress the mortgage payment. A buyer putting 30-35% down would materially change the cash-on-cash picture. Alternatively, a value-add operator sourcing below the $227,163 median, improving the asset, and pushing rents above the $1,327 median has a viable path, since there is spread to work with if basis is controlled. A pure cash-flow buyer at the median price and current rates has no margin here; the model is simply negative at standard leverage. The affordability index of 81 does suggest that rents have room to rise with tenant income levels, which is a useful tail wind for a long-hold investor, but it does not fix the current month-one shortfall.

The property tax situation in Kankakee deserves its own line on every underwrite. Using the Tax Foundation 2024 state-average effective rate, the estimated annual property tax is $5,157, or $430 per month, and combined with insurance of $51 per month, the monthly tax-and-insurance load is approximately $481. That figure alone is 36% of the $1,327 median rent. Illinois carries a state-average effective rate of 2.27%, which is flagged here as very high, and it is a genuine underwriting consideration, not a rounding error. Actual county and township rates in Kankakee may differ from this state-average estimate, so pulling the specific parcel tax bill before closing is essential, not optional. Investors coming from lower-tax states should recalibrate their expense assumptions entirely; this is the primary reason the cash-flow model turns negative even at a price point under $230,000.

The stability score of 50 is the number that warrants the most scrutiny. At the 50th percentile on stability, the county shows more economic cyclicality or demographic concentration risk than the median market. A population of 107,421 is a mid-sized county, not a micro market, but it is not deep enough to be insulated from employer concentration or demographic shifts. No economic anchor data was provided, so specific employers and demand drivers cannot be cited here, but an investor should independently verify what is driving the 6% price appreciation before attributing it to durable demand rather than a temporary supply contraction. The combination of high appreciation momentum and middling stability is a flag worth investigating, not ignoring.

Compared to its neighbors, Kankakee offers an interesting trade-off. Williamson County is the clearest contrast: a median price of $152,606, a rent-to-price ratio of 8.39% versus Kankakee's 7.01%, and the same overall score of 72. An investor whose primary goal is cash flow should look at Williamson seriously before committing to Kankakee. Madison County at $187,237 and a 7.02% ratio is structurally similar to Kankakee but cheaper, which could mean better basis management. Champaign County at $226,633 median and a 7.38% ratio edges out Kankakee on yield while carrying similar price exposure; the university presence in Champaign also tends to provide more predictable rental demand, which an investor should weigh against Kankakee's higher appreciation score of 89. McHenry County at $349,331 requires substantially more capital and is a different investor profile entirely. The case for choosing Kankakee over its neighbors rests almost entirely on the 89 appreciation score and the 6.02% YoY price gain; if those trends hold, the total return story is real. If they soften, the negative cash flow offers no cushion.

Last analyzed October 19, 2026. Based on the latest available Zillow and Census data for Kankakee County.

Scenario comparison

Same $1,327/mo rent assumption, 20% down, 6.85% rate. What changes is the acquisition price.
ScenarioPurchase priceMonthly cash flowCap rateCash-on-cash
75% of median
value-add or distressed
$170,372-$30/mo6.1%-0.9%
Median
typical MLS deal
$227,163-$328/mo4.6%-7.5%
125% of median
newer / premium
$283,954-$626/mo3.6%-11.5%

Price History

Median Home Price

Median Rent

Historical data from Zillow ZHVI/ZORI

Quick Investment Calculator

20%
5%50%100%

Purchase

Purchase Price$227,163
Down Payment (20%)$45,433
Loan Amount$181,730
Interest Rate6.85%

Monthly Cash Flow

Gross Rent+$1,327
Monthly P&I-$1,191
Est. Expenses (35%)-$464
Net Cash Flow-$328/mo
4.6%
Cap Rate (all cash)
-7.5%
Cash-on-Cash Return
7.01%
Rent-to-Price Ratio
Negative leverage: At 6.85% rates, borrowing costs exceed the 4.6% cap rate. All-cash buyers may see better returns.

* Based on county median values. 35% expenses include taxes, insurance, maintenance, vacancy, and property management. Actual results vary by property.

Score Breakdown

Overall Investment Score
72/100
72
Cash Flow(30%)
70/100

Based on 7.01% rent-to-price ratio. Higher ratios indicate stronger cash flow potential.

Appreciation(25%)
89/100

Based on 6.0% YoY price growth. Moderate growth (3-8%) scores highest.

Stability(25%)
50/100

Population data not available.

Affordability(20%)
81/100

Based on price relative to estimated local incomes.

Scores are calculated using real Zillow home value and rent data, Census population data, and economic indicators. The weighted average produces the overall investment score. Markets with missing rent data use estimated values based on regional averages.

Investment Outlook

Strengths

  • +Above-average rent-to-price ratio (7.01%)
  • +Strong price appreciation (+6.0% YoY)
  • +Affordable relative to local incomes
  • +Complete rent data available

Challenges

  • -Negative cash flow at typical financing (-$328/mo)
  • -Negative leverage (cap rate 4.6% < mortgage rate 6.9%)

Economic Indicators

Population
107,421
Median Income
—
Data pending
Unemployment Rate
—
Data pending
Price-to-Income
—
Data pending

Who this market fits

Best for
  • +Appreciation buyers: YoY growth is meaningfully above the long-run average
  • +Patient holders willing to accept negative carry for equity gains
  • +All-cash buyers: removing debt service flips the cap rate to actual yield
  • +Value-add operators who can buy below median and force rent up
Skip if
  • −You need positive cash flow on day one at typical leverage
  • −You can't tolerate negative leverage (cap rate below mortgage rate today)

Compare to Nearby Counties

CountyVerdict
CurrentKankakeeIL
72$227,163$1,3277.01%Buy
WoodfordIL
72$220,926Est. pending—BuyView
WilliamsonIL
72$152,606$1,0678.39%BuyView
MadisonIL
72$187,237$1,0957.02%BuyView
McHenryIL
71$349,331$2,1147.26%BuyView
ChampaignIL
71$226,633$1,3957.38%BuyView

Section 8 in Kankakee County: payment standards by ZIP, PHA waitlist status, and voucher counts are on VoucherMatch, the same HUD dataset with the tenant demand side attached.

The Bottom Line

HoldKankakee scores well overall, but a typical leveraged buy-and-hold loses $328/mo at current rates. Consider house hacking, value-add, or all-cash; otherwise a worse score with positive cash flow may be the better deal.

Kankakee County in Illinois scores 72/100, ranking #113 of 1,000 US counties (top 14%). At 20% down and current rates, a median-priced rental loses about $328/month; the 7.01% gross rent-to-price ratio doesn't survive debt service. The thesis here is appreciation, value-add, house hacking, or all-cash.

Monthly Cash Flow
$-328/mo
Cap Rate
4.6%
Cash-on-Cash
-7.5%

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Frequently asked questions

The average cap rate in Kankakee County is 4.56%, which reflects moderate cash flow potential but indicates this is not a high-yield market for pure income investors.

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