RentalCalcs
ToolsMarket MapMy DealsPricingBlog
RentalCalcs

Professional real estate investment calculators to help you analyze deals faster and make confident investment decisions.

Product

  • Tools
  • Market Map
  • Pricing
  • Blog
  • About

Top Markets

  • Maricopa County, AZ
  • Harris County, TX
  • San Diego County, CA
  • Miami-Dade County, FL
  • Dallas County, TX
  • Clark County, NV
  • Cook County, IL
  • Tarrant County, TX
  • Wayne County, MI
  • Orange County, CA
  • Browse All Markets →

Support

  • Contact Support
  • My Tickets

Legal

  • Terms of Service
  • Privacy Policy

© 2026 RentalCalcs. All rights reserved.

Market MapIllinoisGrundy

Grundy County

IllinoisPopulation: 52,624
60
/100
Hold
#371 of 1,000 counties
#75 in Illinois (102 counties)
Analysis by RentalCalcs Research·Independent data + algorithm-driven scoring
Updated June 29, 2026Sources: Zillow ZHVI, Zillow ZORI, US Census ACS, Tax Foundation

Market Snapshot

$322,238
Median Home Price
41% above national median
$1,356/mo
Median Rent
6% below national median
5.05%
Rent-to-Price Ratio
Top 73% nationally
-$808
Est. Monthly Cash Flow
With 20% down at 6.9% rate

Scenario comparison

Same $1,356/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
$241,679-$386/mo4.4%-8.3%
Median
typical MLS deal
$322,238-$808/mo3.3%-13.1%
125% of median
newer / premium
$402,798-$1,231/mo2.6%-15.9%

Price History

Historical data from Zillow ZHVI/ZORI

Quick Investment Calculator

20%
5%50%100%

Purchase

Purchase Price$322,238
Down Payment (20%)$64,448
Loan Amount$257,790
Interest Rate6.85%

Monthly Cash Flow

Gross Rent+$1,356
Monthly P&I-$1,689
Est. Expenses (35%)-$475
Net Cash Flow-$808/mo
3.3%
Cap Rate (all cash)
-13.1%
Cash-on-Cash Return
5.05%
Rent-to-Price Ratio
Negative leverage: At 6.85% rates, borrowing costs exceed the 3.3% 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.

Run Full AnalysisTry House Hack Strategy

Score Breakdown

Overall Investment Score
60/100
60
Cash Flow(30%)
46/100

Based on 5.05% rent-to-price ratio. Higher ratios indicate stronger cash flow potential.

Appreciation(25%)
85/100

Based on 4.5% YoY price growth. Moderate growth (3-8%) scores highest.

Stability(25%)
50/100

Population data not available.

Affordability(20%)
61/100

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

  • +Complete rent data available

Challenges

  • -Below-average rent-to-price ratio (5.05%)
  • -Negative cash flow at typical financing (-$808/mo)
  • -Negative leverage (cap rate 3.3% < mortgage rate 6.9%)

Economic Indicators

Population
52,624
Median Income
—
Data pending
Unemployment Rate
—
Data pending
Price-to-Income
—
Data pending

Who this market fits

Best for
  • +Patient holders willing to accept negative carry for equity gains
  • +All-cash buyers: removing debt service flips the cap rate to actual yield
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
DuPageIL
66$416,478$2,0405.88%BuyView
GreeneIL
65$106,001Est. pending—BuyView
MassacIL
64$108,542Est. pending—BuyView
CalhounIL
61$184,783Est. pending—BuyView
CurrentGrundyIL
60$322,238$1,3565.05%Buy
MonroeIL
59$327,942$1,2854.70%HoldView

The Bottom Line

HoldGrundy scores well overall, but a typical leveraged buy-and-hold loses $808/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.

Grundy County in Illinois scores 60/100, ranking #371 of 1,000 US counties (top 47%). At 20% down and current rates, a median-priced rental loses about $808/month; the 5.05% 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
$-808/mo
Cap Rate
3.3%
Cash-on-Cash
-13.1%

Related markets

Markets like Grundy with stronger cash flow

  • DuPage County for cash-flow rentals
  • Monroe County for cash-flow rentals

Cheaper alternatives to Grundy

  • Greene County, lower entry price
  • Massac County, lower entry price
  • Calhoun County, lower entry price

Head-to-head comparisons

  • Grundy vs Calhoun for rentals
  • Grundy vs Monroe for rentals
  • Grundy vs Massac for rentals
All counties in Illinois →

Ready to Analyze a Deal in Grundy?

Use our investment calculators to run detailed numbers on specific properties.

Single Family1-4 unit rentals, BRRRRHouse HackOwner-occupied strategyMultifamily5+ unit properties
Explore Other Markets