September 2026 market snapshot

Rock County residential real estate

A sourced view of the county’s for-sale and rental markets, with city-level context for Janesville and Beloit and clear notes where September data is not yet available.

Compiled: October 13, 2026Geography: Rock County / Janesville–Beloit MSAMarket: Seller-favored

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The market in one read

Demand remained strong while active for-sale inventory contracted year over year. Asking prices and sold-price measures tell different stories, and rental asking prices softened countywide.

Janesville–Beloit’s rank among the nation’s hottest housing markets in September, unchanged from a year earlier.

realtor.com hotness report ↗

3.2×U.S. viewers per property

40 daysMetro median time on market, +1 day YoY

Median sold price$300,000

−3.30% MoM · 0.00% YoY

realtor.com ↗

Median asking price$383,338

Month	Median listing price	$/sq ft	Days on market	Active listings
October 2024	$331,700	$183	44 days	283
November 2024	$319,900	$181	58 days	257
December 2024	$327,475	$184	63 days	234
January 2025	$336,700	$189	65 days	202
February 2025	$342,653	$193	56 days	185
March 2025	$337,773	$190	44 days	198
April 2025	$343,250

Metric	Sep	MoM	YoY
Listing $/sq ft	$199	+2.29%	+4.22%
Days on market	44 days	−11.11%	−3.03%
Sale-to-list	~100%	—	—
Redfin sale price	$306,813	—	+4.90%

Metric	Janesville · MoM / YoY	Beloit · MoM / YoY
Median listing	$374,900	−2.56% / +10.93%	$332,450	+8.74% / +0.13%
Median sold	$325,000	+2.50% / +10.92%	$235,050	+1.75% / +4.00%
Listing $/sq ft	$188	+0.05% / +7.15%	$184	+1.77% / +4.66%
Active listings	274	−2.65% / −1.91%	216	−2.11% / −22.18%
Days on market	40 days	−1.54% / +6.67%	44 days	+14.82% / −18.42%

Unit	Janesville	Beloit
Studio	$1,152	$823
1 bedroom	$1,164	$1,266
2 bedroom	$1,205	$1,285
3 bedroom	$1,688+	$1,508+
4 bedroom	Not published: Apartments.com/CoStar did not publish a 4-bedroom average for this city	Not published: Apartments.com/CoStar did not publish a 4-bedroom average for this city

Unit

Janesville

Beloit

Studio

$1,152

$823

1 bedroom

$1,164

$1,266

2 bedroom

$1,205

$1,285

3 bedroom

$1,688+

$1,508+

4 bedroom

Not published: Apartments.com/CoStar did not publish a 4-bedroom average for this city

ZIP / area	Studio	1 BR	2 BR	3 BR	4 BR
53511 · Beloit	$880	$940	$1,220	$1,560	$1,620
53512 · Beloit	$900	$960	$1,250	$1,600	$1,660
53534 · Edgerton	$990	$1,160	$1,360	$1,750	$1,950
53545 · Janesville	$910	$970	$1,260	$1,610

ZIP / area

Studio

1 BR

2 BR

3 BR

4 BR

53511 · Beloit

$880

$940

$1,220

$1,560

$1,620

53512 · Beloit

$900

$960

$1,250

$1,600

$1,660

53534 · Edgerton

$990

$1,160

$1,360

$1,750

$1,950

53545 · Janesville

$910

$970

$1,260

$1,610

Existing home sales	−8.3% YoY
State median	$362,000 · +7.10%
Inventory	4.4 months
South Central sales	−0.9% YoY

53545 · Janesville	$1,400
53546 · Janesville	$1,800
53548 · Janesville	$1,400
53511 · Beloit	$1,525
53512 · Beloit	Not published: Realtor.com did not publish a median for this ZIP (thin or unavailable listing sample)
53534 · Edgerton	Not published: Realtor.com did not publish a median for this ZIP (thin or unavailable listing sample)
53563 · Milton	Not published: Realtor.com did not publish a median for this ZIP (thin or unavailable listing sample)

Rock County residential real estate

The market in one read

For-sale market

Three measures of price

County indicators

Janesville vs. Beloit

Rental performance

Active rental inventory

City rent profiles

Janesville

Beloit

Janesville vs. Beloit by bedroom

HUD Fair Market Rents

FY2026 Small Area FMRs by ZIP

Velocity, vacancy & concessions

Open data gaps

Economic & financing context

30-year fixed mortgage rate

Wisconsin’s latest read

How to read this report

Not available as of October 13

Source directory

Own a Property in Rock County?

Milton

Edgerton

Median asking rent by ZIP