Geography According to the United States Census Bureau, the city has a total area of 3.6 square miles (9.4 km), all land. Major bodies of water near Crystal City include the Nueces River and Averhoff Reservoir. Soils are well-drained, reddish brown to grayish brown, sandy loam or clay loam of the Brystal, Pryor, and Tonio series; the Brystal is neutral to mildly alkaline and the other two tend to be moderately alkaline.
geography according to the united states census bureau the city has a total area of 36 square miles (94 km) all land major bodies of water near crystal city include the nueces river and averhoff reservoir soils are well-drained reddish brown to grayish brown sandy loam or clay loam of the brystal pryor and tonio series; the brystal is neutral to mildly alkaline and the other two tend to be moderately alkaline