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  3. Rock County, WI
Wisconsin (WI)Janesville-Beloit608

Rock County, WI

Janesville-Beloit metro * 163.7K residents

Compare

163.7K

Population

$75.6K

Median income

per household

$227.9K

Home value

9.3%

Poverty rate

What stands out

  • Median household income: $75.6K.
  • Median home value: $227.9K.
  • Poverty rate: 9.3% (low poverty; bottom quartile vs US counties).

Categories vs U.S.

Economy

2 of 6 metrics better than U.S. benchmarks

Median household income

$75.6K

U.S.

$81K

Median home value

$227.9K

U.S.

$333K

Poverty rate

9.3%

U.S.

12.4%

Housing stress

Rent-burdened renters (≥30%)

42.6%

U.S.

51.1%

Severely rent-burdened (≥50%)

20.1%

U.S.

25.9%

Affordability Ratios

Rent-to-Income

16.5%

Below 30% threshold

Home-Value-to-Income

3.0×

Within typical 3-5x range

Income distribution

Share of households by income bracket (ACS).

< $50k
31.5%
$50–100k
34.8%
$100–200k
27.1%
$200k+
6.6%
See Janesville-Beloit metro economy →See WI state economy →

Health

1 of 6 available metrics better than U.S.

Obesity

41.9%

U.S.

33.2%

Diabetes

12.3%

U.S.

12.1%

Current smoking

14.7%

U.S.

12.8%

See Janesville-Beloit metro health data →See WI state health data →

Connectivity

2 of 3 metrics better than U.S.

Best available speed

1,000Mbps

Gigabit speeds reported

100+ Mbps coverage

90.8%

U.S.

85.3%

Gigabit ready

1.4%

U.S.

8.6%

5G available

99.7%

U.S.

77.4%

See Janesville-Beloit metro connectivity →See WI state connectivity →

Map

Rock County, WI

Population

163.7K

Area

718.2 sq mi

Density

228/sq mi

Neighbors

Boone County, ILWinnebago County, ILDane County, WIGreen County, WIJefferson County, WIWalworth County, WI
Data Sources & Notes

Data freshness

ACS 5-year
2020–2024
CDC PLACES
2025
BLS (LAUS)
2025-12
Broadband
2020-12
Mobile coverage
2025-11-24
Page updated
2026-02-23

Release schedule and upstream dates: Sources.

Data sources

U.S. Census (ACS 5-year)U.S. Census TIGER/LineCDC PLACESBLS (LAUS)FCC (Form 477 broadband)FCC (Mobile Broadband Data Collection)

Derived statistics

  • ACS county metrics (income, housing, demographics) are sourced directly from Census county-level tables.
  • CDC health metrics are sourced from county-level CDC PLACES data.
  • Unemployment is sourced from the BLS Local Area Unemployment Statistics (LAUS) program.
  • Population density is computed as population ÷ land area.

Data accuracy & methodology

County pages use 2020–2024 ACS 5-year county-level estimates sourced directly from Census county tables. CDC health metrics come from county-level CDC PLACES. Unemployment rates come from the BLS LAUS program. Connectivity metrics use FCC coverage data.