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Az AAA 1955-ös visszalépése után a USAC (United States Auto Club) vette át bajnokság rendezését. A USAC egészen 1979-ig szankcionálta a bajnoki szezonokat. Ekkor történt meg az első szakadása az amerikai OW-nek. Ekkor jött létre a rivális CART sorozat. Ettől függetlenül 1995-ig a USAC szankciánálta az Indianapolis 500 mérföldes versenyeket. Ekkor már mint USAC Gold Crown Championship néven futott a sorozat. Elejében még több versenyt is rendeztek az Indy500 mellett. A későbbiekben viszont lassan elmaradtak az Indy500 melletti versenyek. |
| 1956 | Jimmy Bryan | USA | Dean Van Lines Racing Division | Dean Van Lines Special |
| 1957 | Jimmy Bryan | USA | Dean Van Lines Racing Division | Dean Van Lines Special |
| 1958 | Tony Bettenhausen | USA | T. A. Wright John S. Zink |
Hardwood Door Special John Zink Special |
| 1959 | Rodger Ward | USA | Leader Cards, Inc. | Leader Card 500 Special |
| 1960 | A. J. Foyt | USA | Bignotti-Bowes Racing | Bowes Seal Fast Special |
| 1961 | A. J. Foyt | USA | Bignotti-Bowes Racing | Bowes Seal Fast Special |
| 1962 | Rodger Ward | USA | Leader Cards, Inc. | Leader Card 500 Roadster |
| 1963 | A. J. Foyt | USA | Ansted-Thompson Racing | Sheraton-Thompson Special |
| 1964 | A. J. Foyt | USA |
Ansted-Thompson Racing | Sheraton-Thompson Special |
| 1965 | Mario Andretti | USA | Dean Van Lines Racing Division | Dean Van Lines Special |
| 1966 | Mario Andretti | USA | Dean Van Lines Racing Division | Dean Van Lines Special |
| 1967 | A. J. Foyt | USA | Ansted-Thompson Racing | Sheraton-Thompson Special |
| 1968 | Bobby Unser | USA | Leader Cards, Inc. | Rislone Special |
| 1969 | Mario Andretti | USA | STP Corporation | STP Oil Treatment Special |
| 1970 | Al Unser, Sr. | USA | Vel's Parnelli Jones Ford | Johnny Lightning 500 Special |
| 1971 | Joe Leonard | USA | Vel's Parnelli Jones Ford | Samsonite Special |
| 1972 | Joe Leonard | USA | Vel's Parnelli Jones Racing | Samsonite Special |
| 1973 | Roger McCluskey | USA | Lindsey Hopkins, Jr. | Lindsey Hopkins Buick |
| 1974 | Bobby Unser | USA | All American Racers | Olsonite Eagle |
| 1975 | A. J. Foyt | USA | A.J. Foyt Enterprises | Gilmore Racing Team Special |
| 1976 | Gordon Johncock | USA | Patrick Racing | Sinmast / Goodyear |
| 1977 | Tom Sneva | USA | Penske Racing, Inc. | Norton Spirit Penske |
| 1978 | Tom Sneva | USA | Penske Racing, Inc. | Norton Spirit Penske |
USAC Gold Crown Championship
| 1979 | A. J. Foyt | USA | A. J. Foyt/Vel's Parnelli Jones | Gilmore Racing Team |
| 1980 | Johnny Rutherford | USA | Chaparral Racing, Ltd. | Pennzoil Z-7 Chaparral |
| 1981-82 | George Snider | USA | Gilmore Racing | Valvoline / Cobra Tire / D. Krieg Motor Home Rental |
| 1982-83 | Tom Sneva | USA | Bignotti-Cotter, Inc. | Texaco Star |
| 1983-84 | Rick Mears | USA | Penske Cars, Ltd | Pennzoil Z-7 Penske |
| 1985 | Danny Sullivan | USA | Penske Racing, Inc. | Miller American |
| 1986 | Bobby Rahal | USA | Truesports | Budweiser |
| 1987 | Al Unser | USA | Penske Racing, Inc. | Cummins-Holset Penske |
| 1988 | Rick Mears | USA | Penske Racing, Inc. | Pennzoil Z-7 Penske |
| 1989 | Emerson Fittipaldi | Brazil | Patrick Racing | Marlboro |
| 1990 | Arie Luyendyk | Holland | Doug Shierson Racing | Domino's Pizza |
| 1991 | Rick Mears | USA | Penske Racing, Inc. | Marlboro Penske Chevy '91 |
| 1992 | Al Unser Jr. | USA | Galles-Kraco Enterprises | Valvoline Galmer '92 Chevrolet |
| 1993 | Emerson Fittipaldi | Brazil | Patrick Racing | Marlboro |
| 1994 | Al Unser Jr. | USA | Penske Racing, Inc. | Marlboro Penske |
| 1995 | Jacques Villeneuve | Kanada | Team Green | Player's LTD |
