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  3. Mercer County, IL
Illinois (IL)Davenport-Moline-Rock Island309861

Mercer County, IL

Davenport-Moline-Rock Island metro * 14.2K residents

Compare

14.2K

Population

$74.7K

Median income

per household

$149.6K

Home value

8.6%

Poverty rate

What stands out

  • Median household income: $74.7K.
  • Median home value: $149.6K.
  • Poverty rate: 8.6% (low poverty; bottom quartile vs US counties).

Categories vs U.S.

Economy

1 of 6 metrics better than U.S. benchmarks

Median household income

$74.7K

U.S.

$81K

Median home value

$149.6K

U.S.

$333K

Poverty rate

8.6%

U.S.

12.4%

Housing stress

Rent-burdened renters (≥30%)

38.0%

U.S.

51.1%

Severely rent-burdened (≥50%)

12.8%

U.S.

25.9%

Affordability Ratios

Rent-to-Income

12.3%

Below 30% threshold

Home-Value-to-Income

2.0×

Within typical 3-5x range

Income distribution

Share of households by income bracket (ACS).

< $50k
32.9%
$50–100k
30.3%
$100–200k
29.6%
$200k+
7.3%
See Davenport-Moline-Rock Island metro economy →See IL state economy →

Health

2 of 6 available metrics better than U.S.

Obesity

38.6%

U.S.

33.2%

Diabetes

12.4%

U.S.

12.1%

Current smoking

15.3%

U.S.

12.8%

See Davenport-Moline-Rock Island metro health data →See IL state health data →

Connectivity

0 of 3 metrics better than U.S.

Best available speed

250Mbps

Below gigabit speeds reported

100+ Mbps coverage

67.8%

U.S.

85.3%

Gigabit ready

0.0%

U.S.

8.6%

5G available

76.9%

U.S.

77.4%

See Davenport-Moline-Rock Island metro connectivity →See IL state connectivity →

Map

Mercer County, IL

Population

14.2K

Area

561.2 sq mi

Density

25.4/sq mi

Neighbors

Henderson County, ILHenry County, ILKnox County, ILRock Island County, ILWarren County, ILDes Moines County, IALouisa County, IA
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.