Willamar is a former census-designated place (CDP) in Willacy County, Texas, United States.

[4] According to the United States Census Bureau, the former CDP had a total area of 2.4 square miles (6.3 km2), all land.

As of the census[1] of 2000, there were 15 people, 6 households, and 4 families residing in the CDP.

16.7% of all households were made up of individuals, and none had someone living alone who was 65 years of age or older.

Willamar is served by the Lyford Consolidated Independent School District.