Seawillow is an unincorporated community in Caldwell County, Texas, United States.

Before the discovery of oil in Caldwell County in the 1920s and 30s, the main agricultural products shipped by farmers who lived in the area were cotton and grain.

[2] A 22-year-old man was arrested and charged with aggravated assault with a deadly weapon after stabbing a resident in Seawillow.

[3] Seawillow is located at the intersection of Farm to Market Roads 197 and 204, 6 mi (9.7 km) southeast of Lockhart in the central part of Caldwell County.

[2] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.