County health data
McHenry County, IL
CDC PLACES estimates diabetes at 10.5% of adults in McHenry County (Illinois: 12.2%). This county has 1 HRSA shortage designation, 3 hospitals, and 4 health center sites.
License. US government work, Public Domain Mark 1.0.
For help with food, housing, utilities, or rides in McHenry County, call 211 or visit 211.org.
Health measures compared with the state
40 measures for adults in McHenry County (about 242,583 adults). 24 have a Illinois figure from the same survey.
Largest differences from the Illinois figure: obesity 32.1% vs 36.0% (-3.9 points), depression 21.7% vs 18.1% (+3.6 points), and fair or poor health 16.2% vs 18.2% (-2.0 points).
Health Outcomes
| Measure | McHenry County | Illinois | US | Year |
|---|---|---|---|---|
| Arthritis | 26.3% | 24.5% | 26.3% | 2023 |
| High blood pressure | 33.7% | 33.5% | 34.0% | 2023 |
| Cancer, excluding non-melanoma skin cancer | 8.6% | n/a | n/a | 2023 |
| Current asthma | 9.6% | 9.5% | 10.2% | 2023 |
| Coronary heart disease | 5.6% | 3.7% | 4.0% | 2023 |
| COPD | 5.9% | 6.3% | 6.3% | 2023 |
| Depression | 21.7% | 18.1% | 21.8% | 2023 |
| Diagnosed diabetes | 10.5% | 12.2% | 11.8% | 2023 |
| High cholesterol, adults ever screened | 35.7% | 36.3% | 37.2% | 2023 |
| Obesity | 32.1% | 36.0% | 34.4% | 2023 |
| Stroke | 2.9% | 2.9% | 3.3% | 2023 |
| All teeth lost, ages 65 and older | 13.2% | n/a | n/a | 2022 |
Prevention
| Measure | McHenry County | Illinois | US | Year |
|---|---|---|---|---|
| No health insurance, ages 18 to 64 | 7.9% | 8.5% | 9.3% | 2023 |
| Taking blood pressure medicine, adults with high blood pressure | 75.3% | n/a | n/a | 2023 |
| Routine checkup in the past year | 77.4% | 79.4% | 78.4% | 2023 |
| Cholesterol screening | 88.0% | n/a | n/a | 2023 |
| Colorectal cancer screening, ages 45 to 75 | 63.0% | n/a | n/a | 2022 |
| Dental visit in the past year | 65.4% | n/a | n/a | 2022 |
| Mammogram, women ages 50 to 74 | 75.9% | n/a | n/a | 2022 |
Health Risk Behaviors
| Measure | McHenry County | Illinois | US | Year |
|---|---|---|---|---|
| Binge drinking | 18.7% | 18.1% | 15.1% | 2023 |
| Current smoking | 11.5% | 10.8% | 12.1% | 2023 |
| No leisure-time physical activity | 20.9% | 21.4% | 24.5% | 2023 |
| Short sleep | 30.5% | n/a | n/a | 2022 |
Health Status
| Measure | McHenry County | Illinois | US | Year |
|---|---|---|---|---|
| Fair or poor health | 16.2% | 18.2% | 18.5% | 2023 |
| Frequent mental distress | 15.4% | 13.7% | 15.4% | 2023 |
| Frequent physical distress | 11.7% | 11.7% | 12.6% | 2023 |
Disability
| Measure | McHenry County | Illinois | US | Year |
|---|---|---|---|---|
| Cognitive disability | 11.7% | 11.1% | 13.7% | 2023 |
| Any disability | 26.3% | n/a | n/a | 2023 |
| Hearing disability | 6.3% | 5.5% | 7.4% | 2023 |
| Independent living disability | 6.6% | 7.6% | 7.8% | 2023 |
| Mobility disability | 11.3% | 13.0% | 13.4% | 2023 |
| Self-care disability | 2.9% | 3.0% | 3.7% | 2023 |
| Vision disability | 3.8% | 5.0% | 5.0% | 2023 |
Health-Related Social Needs
| Measure | McHenry County | Year |
|---|---|---|
| Lack of social and emotional support | 22.7% | 2023 |
| Food insecurity in the past year | 11.1% | 2023 |
| Received food stamps in the past year | 9.0% | 2023 |
| Housing insecurity in the past year | 9.6% | 2023 |
| Lack of reliable transportation in the past year | 6.0% | 2023 |
| Loneliness | 31.8% | 2023 |
| Utility shut-off threat in the past year | 5.6% | 2023 |
Source: CDC PLACES county data, as of December 4, 2025. Publisher page
Source: CDC BRFSS prevalence data, as of September 15, 2026. Publisher page
Health professional shortage areas
HRSA lists 1 designated shortage row in McHenry County: mental health 1 (highest score 17). It covers a geographic area or population group.
| Discipline | Area or population | Facility | Highest score |
|---|---|---|---|
| mental health | 1 | 0 | 17 |
Area and population designations
| Designation | Discipline | Type | Score |
|---|---|---|---|
| LI-Northern IL MHCA | mental health | HPSA Population | 17 |
Source: HRSA Health Professional Shortage Areas, as of October 14, 2026. Publisher page
Hospitals and readmission rates
CMS Care Compare lists 3 acute care or critical access hospitals in McHenry County, 1 of them critical access. None has a readmission rate CMS rates worse than the national rate.
| Hospital | City | Stars | Heart failure | Pneumonia | COPD | Heart attack | Hip or knee |
|---|---|---|---|---|---|---|---|
| MERCY HARVARD HOSPITALCritical access | HARVARD | n/a | n/a | n/a | n/a | n/a | n/a |
| MERCYHEALTH HOSPITAL & PHYSICIAN CLINIC-CRYSTAL LA | CRYSTAL LAKE | n/a | n/a | n/a | n/a | n/a | n/a |
| NORTHWESTERN MEDICINE MCHENRY | MCHENRY | 5 | 20.0% | 16.0% | 20.0% | 13.4% | 6.5% |
Each rate is the share of patients readmitted within 30 days of discharge, July 2023 to June 2025. "n/a" means CMS did not publish a rate for that hospital.
Source: CMS Care Compare hospital general information, as of August 13, 2026. Publisher page
Source: CMS Care Compare unplanned hospital visits, as of September 30, 2026. Publisher page
Health centers
4 active health center sites in McHenry County, run by 3 organizations.
| Site ↑ | Health center | Address | City |
|---|---|---|---|
| 3901 Mercy Dr | GREATER FAMILY HEALTH | 3901 Mercy Dr | Mchenry 60050 |
| Aunt Martha's Woodstock Community Health Center | AUNT MARTHA'S HEALTH & WELLNESS INC | 3703 Doty Rd, Unit 1 | Woodstock 60098 |
| Susana P. Castro Health Center | COMMUNITY HEALTH PARTNERSHIP OF ILLINOIS | 62 N Ayer St, #A | Harvard 60033 |
| Susana P. Castro Health Center - Dental Clinic | COMMUNITY HEALTH PARTNERSHIP OF ILLINOIS | 62 N Ayer St | Harvard 60033 |
Source: HRSA health center service delivery and look-alike sites, as of October 14, 2026. Publisher page
Illinois rural health plan
Illinois Rural Health Transformation Program - To support rural communities across the State of Illinois in improving healthcare access, quality, and outcomes by transforming healthcare delivery.
Initiatives, as the state's abstract names them (page 21):
- Hospital Transformation
- Community Care Infrastructure
- Hospital Disease Prevention
- EMS and Mobile Healthcare
- Technological Innovation for Virtual Care
- Healthcare Workforce Expansion
- Training Healthcare Support Workers
- Rural Health Education Pipeline
CMS says the abstract budgets are illustrative and are not award amounts, so none are shown.
Source: CMS Rural Health Transformation Program state project abstracts, as of December 2025. Publisher page
For health centers, health departments, and nonprofits
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Neighboring counties
Medicare plans in McHenry County, IL
About this data
County rates are CDC PLACES model-based estimates of adults, built from the CDC BRFSS survey and Census population data. State and US figures are BRFSS survey results for the same year. They are not averages of counties, and small differences may not be meaningful.
Shortage rows are HRSA designations with status Designated. Scores run from 0 to 25 (0 to 26 for dental); a higher score means greater need. Hospitals are acute care and critical access hospitals CMS lists in the county, with 30-day rates of unplanned readmission. Health centers are active HRSA-funded and look-alike sites.
Rural health plan initiatives are copied as the state wrote them. Nothing here is medical advice.
Source: CDC PLACES county data, as of December 4, 2025. Publisher page
Source: CDC BRFSS prevalence data, as of September 15, 2026. Publisher page
Source: HRSA Health Professional Shortage Areas, as of October 14, 2026. Publisher page