Pinedale is in west-central McKinley County, 14 miles (23 km) by road northeast of Church Rock and 22 miles (35 km) northeast of Gallup, the county seat. It is served by Navajo Route 11.
According to the U.S. Census Bureau, the Pinedale CDP has a total area of 10.32 square miles (26.73 km2), of which 0.006 square miles (0.016 km2), or 0.06%, are water.[1] The community sits at the northern base of Fallen Timber Ridge and is drained by tributaries of the Puerco River, which flows westward through the northern part of the CDP, leading eventually to Gallup and thence to the Little Colorado River in Arizona.