How many miles to the gallon does a 1997 Chevy Suburban get?

The fuel economy of a 1997 Chevy Suburban varied significantly depending on the engine size and whether it was a 2WD or 4WD model. There's no single answer. You'll find a range of 10-16 mpg (miles per gallon) cited in various sources, with the lower end being more common for heavier 4WD models with larger engines.