135.4 per 100K
738:1 · 17,225 providers
US 119.6
Medicare-enrolled: 45% (CMS Doctors & Clinicians, August 2026)
Ltrl Health Data
Illinois
Healthcare providers per resident, insurance coverage and preventive care, compared with the US.
Population 12,719,141 (Census, 2025)Provider data: NPPES, September 2026102 counties
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Healthcare providers
Dentists
90.3 per 100K
1,108:1 · 11,483 providers
US 80.5
Medicare-enrolled: 1% (CMS Doctors & Clinicians, August 2026)
Mental health providers
402.5 per 100K
248:1 · 51,195 providers
US 396.3
Medicare-enrolled: 17% (CMS Doctors & Clinicians, August 2026)
Other primary care providers
154.1 per 100K
649:1 · 19,597 providers
US 169.7
Medicare-enrolled: 63% (CMS Doctors & Clinicians, August 2026)
Primary care physicians
| Measure | Providers | Per 100,000 | Residents per provider | US | Trend |
|---|---|---|---|---|---|
| Dentists Medicare-enrolled: 1% (CMS Doctors & Clinicians, August 2026) | 11,483 | 90.3 | 1,108:1 | 80.5 | |
| Mental health providers Medicare-enrolled: 17% (CMS Doctors & Clinicians, August 2026) | 51,195 | 402.5 | 248:1 | 396.3 | |
| Other primary care providers Medicare-enrolled: 63% (CMS Doctors & Clinicians, August 2026) | 19,597 | 154.1 | 649:1 | 169.7 | |
| Primary care physicians Medicare-enrolled: 45% (CMS Doctors & Clinicians, August 2026) | 17,225 | 135.4 | 738:1 | 119.6 |
Trend: June 2021 to September 2026. State and US figures are pooled (total providers ÷ total population) for the same period.
Coverage and preventive care
Flu vaccinations48.0%
US 44.0% · CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023
US 36.0% · CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023
US 2,769 · CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023
US — · U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024
US — · U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024
US — · U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024
| Measure | Illinois | US | Source |
|---|---|---|---|
| Flu vaccinations | 48.0% | 44.0% | CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023 |
| Mammography screening | 37.0% | 36.0% | CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023 |
| Preventable hospital stays | 3,343 | 2,769 | CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023 |
| Uninsured (under 65) | 8.1% | — | U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024 |
| Uninsured adults (18–64) | 9.8% | — | U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024 |
| Uninsured children (under 19) | 3.5% | — | U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024 |
Counties: dentists per 100,000
| Name | Providers | Residents per provider | |
|---|---|---|---|
| Effingham County | 53 | 153.5 | 651:1 |
| DuPage County | 1,204 | 128.9 | 776:1 |
| Lake County | 852 | 118.4 | 844:1 |
| Madison County | 285 | 108.3 | 923:1 |
| Cook County | 5,543 | 106.7 | 937:1 |
| Peoria County | 173 | 96.9 | 1,032:1 |
| Jackson County | 48 | 91.4 | 1,094:1 |
| Winnebago County | 259 | 91.3 | 1,095:1 |
| Sangamon County | 173 | 89.1 | 1,122:1 |
| Adams County | 53 | 82.5 | 1,213:1 |
| Monroe County | 28 | 80.4 | 1,244:1 |
| Kane County | 419 | 79.7 | 1,255:1 |
| DeKalb County | 78 | 76.6 | 1,306:1 |
| St. Clair County | 191 | 76.2 | 1,313:1 |
| McLean County | 130 | 75.8 | 1,319:1 |
| McHenry County | 236 | 74.3 | 1,346:1 |
| Rock Island County | 104 | 73.3 | 1,364:1 |
| Macon County | 69 | 69.5 | 1,439:1 |
| Jo Daviess County | 15 | 69.5 | 1,440:1 |
| Champaign County | 145 | 69.1 | 1,448:1 |
| Montgomery County | 19 | 67.7 | 1,478:1 |
| Union County | 11 | 66.0 | 1,514:1 |
| Will County | 462 | 64.9 | 1,542:1 |
| Tazewell County | 84 | 64.6 | 1,548:1 |
| LaSalle County | 68 | 63.1 | 1,585:1 |
| Logan County | 17 | 62.5 | 1,599:1 |
| Stephenson County | 26 | 60.2 | 1,662:1 |
| Williamson County | 39 | 58.0 | 1,724:1 |
| Fayette County | 12 | 57.7 | 1,733:1 |
| Jefferson County | 20 | 55.3 | 1,807:1 |
| Macoupin County | 24 | 54.9 | 1,823:1 |
| Lee County | 18 | 54.7 | 1,829:1 |
| Morgan County | 17 | 52.3 | 1,913:1 |
| Randolph County | 15 | 50.1 | 1,995:1 |
| Kankakee County | 51 | 48.3 | 2,069:1 |
| Jersey County | 10 | 47.3 | 2,116:1 |
| Coles County | 22 | 47.2 | 2,119:1 |
| Whiteside County | 25 | 46.2 | 2,165:1 |
| Grundy County | 24 | 44.4 | 2,252:1 |
| Livingston County | 15 | 42.8 | 2,337:1 |
| McDonough County | 11 | 42.4 | 2,356:1 |
| Knox County | 20 | 41.9 | 2,388:1 |
| Vermilion County | 29 | 40.7 | 2,457:1 |
| Boone County | 21 | 39.2 | 2,551:1 |
| Ogle County | 20 | 38.9 | 2,570:1 |
| Bureau County | 12 | 36.9 | 2,709:1 |
| Kendall County | 52 | 35.7 | 2,798:1 |
| Henry County | 17 | 35.3 | 2,829:1 |
| Marion County | 12 | 33.0 | 3,032:1 |
| Franklin County | 11 | 29.8 | 3,356:1 |
Showing 50 of 102. Flagged rows are listed after ranked rows.
Registered, not necessarily practicing. Provider counts come from the national provider registry (NPPES): active individual clinicians, counted once under their primary specialty at their practice-location county. Some registered clinicians are retired or see few patients. Counts under 10, or places with fewer than 10,000 residents, are flagged and left out of rankings. Nothing is estimated or imputed. Methodology
Sources: NPPES (CMS), September 2026; Census population estimates; Census SAHIE; CMS Mapping Medicare Disparities. Ltrl is not affiliated with County Health Rankings & Roadmaps.