Iowa Corn 350
| NASCAR Cup Series | |
|---|---|
| Venue | Iowa Speedway |
| Location | Newton, Iowa, United States |
| Corporate sponsor | Iowa Corn |
| First race | 2024 |
| Distance | 306.25 mi (492.862 km) |
| Laps | 350 Stage 1: 70 Final 2 stages: 140 each |
| Most wins (driver) | Ryan Blaney William Byron (1) |
| Most wins (team) | Team Penske Hendrick Motorsports (1) |
| Most wins (manufacturer) | Ford Chevrolet (1) |
| Circuit information | |
| Surface | Asphalt |
| Length | 0.875 mi (1.408 km) |
| Turns | 4 |
The Iowa Corn 350 (officially known as the Iowa Corn 350 powered by Ethanol) is a NASCAR Cup Series stock car race held at Iowa Speedway in Newton, Iowa. It was NASCAR Cup Series' first race at Iowa Speedway and first race in the state of Iowa.
William Byron is the defending race winner, having won it in 2025.