Marquez (/mɑːrˈkeɪ/ mar-KAY[4]) is a city in Leon County, Texas, United States.

According to the United States Census Bureau, the city has a total area of 1.2 square miles (3.1 km2), all land.

33.3% of all households were made up of individuals, and 20.0% had someone living alone who was 65 years of age or older.

About 27.9% of families and 29.1% of the population were below the poverty line, including 34.1% of those under the age of eighteen and 22.7% of those 65 or over.

The City of Marquez is served by the Leon Independent School District.