McHenry County, Illinois

• White (non-Hispanic) 237,822 76.1%
• Hispanic or Latino (any race) 50,243 16.1%
• Black or African American (non-Hispanic) 4,315 1.4%
• Asian (non-Hispanic) 9,441 3.0%
• Two or more races (non-Hispanic) 9,875 3.2%
• American Indian / Alaska Native (non-Hispanic) 130 0.0%
• Native Hawaiian / Pacific Islander (non-Hispanic) 36 0.0%
• Some other race (non-Hispanic) 729 0.2%

• Under 18 71,089 22.7%
• 18–24 25,221 8.1%
• 25–44 77,458 24.8%
• 45–64 87,311 27.9%
• 65 and over 51,512 16.5%

Median household income

$102,725

90% interval $97,999–$107,451

+$19,398 vs IL · 7th of 102

Below poverty line

6.3%

90% interval 5.4%–7.2%

−5.2 pp vs IL · 98th of 102

Unemployment (12-mo)

4.4%

−0.45 pp vs. state

County GDP

$16.0B

1.39% of state

Avg. annual pay

$57,103

Establishments

7,906

• Education & health services 22,509 23.0%
• Trade, transportation & utilities 21,367 21.8%
• Leisure & hospitality 12,192 12.4%
• Manufacturing 11,453 11.7%
• Professional & business services 10,693 10.9%
• Public administration 4,030 4.1%
• Other services 3,419 3.5%
• Financial activities 2,745 2.8%
• Information 273 0.3%
• Construction 45 0.0%

The sectors listed cover 90.5% of covered employment; BLS withholds the rest to avoid disclosing individual employers.

Home ownership

82.7%

+15.6 pp vs IL · 12th of 102

Median gross rent

$1,401

+$127 vs IL · 7th of 102

Owner-occupied

97,259

Renter-occupied

20,335

• Moderately concentrated

  Top three sectors employ 57% of the county workforce. Substantial intra-sector overlap among panelists is likely; confirm employer relationships before sector-specific framing.

• Moderate wage spread

  Highest-paid sector (Manufacturing, $74,720/yr) pays 2.9× the lowest (Leisure & hospitality, $25,396/yr). Expect meaningful income variation across the panel.

• Mixed business scale

  Average establishment employs 12 workers, a mix of institutional employers and small businesses. Both employed-by-large-institution and small-business-owner perspectives are likely on the panel.

• Republican 83,933 51.9%
• Democratic 75,370 46.6%
• Other / third-party 2,396 1.5%

• Spanish 31,502 10.6%
• Russian, Polish, or other Slavic 5,883 2.0%
• Tagalog 1,754 0.6%
• German or other West Germanic 1,180 0.4%
• Korean 488 0.2%
• Vietnamese 319 0.1%
• Chinese 318 0.1%
• Arabic 314 0.1%
• French, Haitian, or Cajun 245 0.1%

Households

117,594

Family households

84,562

71.9% of households

Married couples w/ children

27,490

32.5% of families

Single-mother families

5,742

6.8% of families

Veterans

13,409

5.6% of civilians 18+

• Catholic 80,090 25.8%
• Mainline Protestant 17,797 5.7%
• Evangelical Protestant 17,068 5.5%
• Other (non-Christian + minor traditions) 3,913 1.3%

Health insured

95.5%

±0.4 pp

Uninsured

4.5%

±0.4 pp

69th of 102

With a disability

10.1%

±0.5 pp

95th of 102

Bachelor's or higher

35.2%

±1 pp

−2.6 pp vs IL · 13th of 102

Uninsured, under 65 (2024)

6.2%

90% interval 5.6%–6.8% · Census SAHIE

The under-65 uninsured rate is not comparable to the ACS insurance figures, which cover all ages.

Trial court

22nd Judicial Circuit Court

Judges

16 (Combined Circuit Judge + Associate Judge counts per circuit. Vintage 2024-2025; hand-sourced from per-circuit official court websites and the 2023-2024 Illinois Blue Book (ilsos.gov) judge roster, cross-referenced against the Administrative Office of the Illinois Courts directory. Cook County total of ~400 reflects the Circuit Court of Cook County's combined elected Circuit Judges (~257) plus appointed Associate Judges (~145), the largest unified trial court in the United States. Several smaller downstate circuits carry estimates (see source comments).)

Court seats

Woodstock

Traffic fatalities

27

11.18 per 100k adults (18+)

Fatal crashes

24