Partial knee replacement cost in Illinois
In Illinois, 10 hospitals publish a cash price for partial knee replacement (one compartment): from $1,114.85 to $41,473.60, with a median of $8,812.89. The lowest price is at Humboldt Park Health (Chicago). The highest price is 37.2× the lowest.
- The median here, $8,812.89, is 42% below the US median of $15,226.08.
- Illinois ranks 8th of 27 states by median, cheapest first.
- 1 of 10 hospitals list a cash price equal to their full list price, with no self-pay discount.
Illinois law (Hospital Uninsured Patient Discount Act, 210 ILCS 89): an uninsured Illinois resident with family income up to 600% of the federal poverty level (300% at rural and critical access hospitals) can apply for a discount that brings the bill down to about 135% of the hospital's cost; up to 200% (125% at rural hospitals) medically necessary care is free. A hospital may collect no more than 25% of family income in 12 months. Ask the billing office for the application. Other states' laws.
Outpatient cash prices, one line per hospital — its lowest listed price for code 27446. Prices for both sides of the body and inpatient prices are not mixed in. Collected Nov 6, 2026. See them on a map
Hospitals in Illinois, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Humboldt Park Health lowest Chicago · Chicago-Naperville-Elgin, IL-IN Replacement of knee joint on side of knee | $1,114.85 | $3,981.60 | Sep 29, 2026 source file |
| Morris Hospital Morris · Chicago-Naperville-Elgin, IL-IN Replacement of knee joint on side of knee | $1,937.55 | $8,053.00 | Oct 27, 2026 source file |
| John H. Stroger, Jr. Hospital Chicago · Chicago-Naperville-Elgin, IL-IN PF-REVISION OF KNEE JOINT | $2,110.50 | $3,015.00 | Apr 1, 2026 source file |
| FHN Memorial Hospital Freeport · Freeport, IL Replacement of knee joint on side of knee | $4,878.40 | $6,098.00 | Jan 22, 2026 source file |
| Gibson Area Hospital Gibson City · Champaign-Urbana, IL Unicompartmental Knee | $7,232.00 | $7,232.00 | Nov 4, 2026 source file |
| Riverside Medical Center one side Kankakee · Kankakee, IL REPLACEMENT OF KNEE JOINT ON SIDE OF KNEE | $10,393.78 | $39,045.00 | Mar 15, 2026 source file |
| Saint Francis Hospital Evanston · Chicago-Naperville-Elgin, IL-IN Revision of knee joint | $13,690.00 | $36,555.00 | Sep 1, 2026 source file |
| Saint Joseph Medical Center - Joliet Joliet · Chicago-Naperville-Elgin, IL-IN Revision of knee joint | $13,690.00 | $20,997.00 | Sep 1, 2026 source file |
| Jackson Park Hospital Foundation Chicago · Chicago-Naperville-Elgin, IL-IN RIVISION OF KNEE JOINT | $19,290.13 | $24,112.66 | Dec 26, 2025 source file |
| Northwestern Memorial Hospital Chicago · Chicago-Naperville-Elgin, IL-IN HB Arthrp Knee Condyle&Plateau Medial/Lat Cmprt | $41,473.60 | $59,248.00 | Apr 1, 2026 source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Chicago-Naperville-Elgin, IL-IN | 7 | $1,114.85 | $13,690.00 |
| Champaign-Urbana, IL | 1 | $7,232.00 | $7,232.00 |
| Freeport, IL | 1 | $4,878.40 | $4,878.40 |
| Kankakee, IL | 1 | $10,393.78 | $10,393.78 |
What partial knee replacement is, what the price covers and why prices differ: Partial knee replacement explained.
Partial knee replacement (one compartment) in other states
- Alabama$19,469.83
- Alaska$13,124.80, 3 hospitals
- Arizona$20,722.33
- Arkansas$5,914.59
- California$20,092.80
- Colorado$38,029.94
- Connecticut$6,630.00, 3 hospitals
- Delaware$10,711.70, 1 hospital
- Florida$20,623.25
- Georgia$15,440.00
- Hawaii$14,872.20, 4 hospitals
- Idaho$15,889.00
- Indiana$24,907.45
- Iowa$2,929.70
- Kansas$17,692.00
- Kentucky$13,316.34
- Louisiana$14,682.35
- Maryland$8,788.56, 1 hospital
- Massachusetts$13,928.00, 1 hospital
- Michigan$2,550.85
- Minnesota$4,373.25
- Mississippi$16,799.06, 3 hospitals
- Missouri$12,796.00
- Montana$8,802.14, 3 hospitals
- Nebraska$13,072.52, 4 hospitals
- Nevada$12,652.00, 2 hospitals
- New Hampshire$12,649.40, 2 hospitals
- New Jersey$6,311.00
- New Mexico$38,318.37, 3 hospitals
- New York$15,226.08
- North Carolina$5,799.60, 3 hospitals
- North Dakota$12,378.12, 3 hospitals
- Ohio$31,122.16
- Oklahoma$14,507.84, 4 hospitals
- Oregon$28,289.30
- Pennsylvania$22,999.35
- Rhode Island$13,738.67, 1 hospital
- South Carolina$45,773.83, 4 hospitals
- South Dakota$15,721.00, 3 hospitals
- Tennessee$14,327.66, 4 hospitals
- Texas$12,836.37
- Utah$2,730.36, 1 hospital
- Vermont$9,998.99, 2 hospitals
- Virginia$42,680.28
- Washington$18,761.43
- West Virginia$8,192.59
- Wisconsin$5,626.38
Median cash price across the state's hospitals.