Sebastian is a census-designated place (CDP) in Willacy County, Texas, United States. The population was 1,684 at the 2020 census.
Geography
Sebastian is located at (26.343249, -97.793347).
According to the United States Census Bureau, the CDP has a total area of 1.7 square miles (4.3 km<sup>2</sup>), all land.
Demographics
Sebastian first appeared as a census designated place in the 1990U.S. Census.
!Pop 2010
!style="background-color: #ffffb3;" |Pop 2020
!% 2000
!% 2010
!style="background-color: #ffffb3;" |% 2020
|-
|White alone (NH)
|81
|96
|style='background: #ffffe6; |76
|4.35%
|5.01%
|style='background: #ffffe6; |4.51%
|-
|Black or African American alone (NH)
|1
|5
|style='background: #ffffe6; |1
|0.05%
|0.26%
|style='background: #ffffe6; |0.06%
|-
|Native American or Alaska Native alone (NH)
|1
|1
|style='background: #ffffe6; |15
|0.05%
|0.05%
|style='background: #ffffe6; |0.89%
|-
|Asian alone (NH)
|0
|0
|style='background: #ffffe6; |0
|0.00%
|0.00%
|style='background: #ffffe6; |0.00%
|-
|Native Hawaiian or Pacific Islander alone (NH)
|0
|0
|style='background: #ffffe6; |2
|0.00%
|0.00%
|style='background: #ffffe6; |0.12%
|-
|Other race alone (NH)
|0
|2
|style='background: #ffffe6; |2
|0.00%
|0.10%
|style='background: #ffffe6; |0.12%
|-
|Mixed race or Multiracial (NH)
|1
|0
|style='background: #ffffe6; |7
|0.05%
|0.00%
|style='background: #ffffe6; |0.42%
|-
|Hispanic or Latino (any race)
|1,780
|1,813
|style='background: #ffffe6; |1,581
|95.49%
|94.57%
|style='background: #ffffe6; |93.88%
|-
|Total
|1,864
|1,917
|style='background: #ffffe6; |1,684
|100.00%
|100.00%
|style='background: #ffffe6; |100.00%
|}
2000 census
As of the census