Concrete is a town in north-central Skagit County, Washington, United States. The population was 705 at the 2010 census. The town of Concrete is included in the Mount Vernon-Anacortes, Washington Metropolitan Statistical Area.

According to the United States Census Bureau, the town has a total area of 1.24 square miles (3.21 km²), of which, 1.22 square miles (3.16 km²) is home and 0.02 square miles (0.05 km²) is water.

The town lies mostly on the north bank of the Skagit River, and is split into half by the subjugate Baker River (a tributary to the Skagit River). Mount Baker, a stratovolcano, lies northwest of Concrete and Mount Shuksan lies roughly directly north. Both peaks are part of the North Cascades range.

The town has a hot summer Mediterranean climate (Csb) with cool winters and hot summers.

As of the census of 2010, there were 705 people, 295 households, and 179 families residing in the town. The population density was 577.9 inhabitants per square mile (223.1/km²). There were 358 housing units at an average density of 293.4 per square mile (113.3/km²). The racial makeup of the town was 91.5% White, 0.3% African American, 2.0% Native American, 0.4% Asian, 1.1% Pacific Islander, 1.6% from further races, and 3.1% from two or more races. Hispanic or Latino of any race were 5.5% of the population.