San Isidro is a census-designated place (CDP) in Starr County, Texas, United States. As of the 2020 census, San Isidro had a population of 187. The town is named for St. Isidore the Laborer, the patron saint of farmers. A large Southwestern Barrel Cactus growing just east of town is said to be the largest in Texas.
Geography
San Isidro is located at (26.718830, -98.444126).
The CDP lost a little area prior to the 2010 census, making the total area of 3.1 square miles (8.0 km), all land.
Demographics
San Isidro was first listed as a census designated place in the 2000 U.S. census.
!Pop 2010
!
!% 2000
!% 2010
!
|-
|White alone (NH)
|4
|22
|style='background: #ffffe6; |10
|1.48%
|9.17%
|style='background: #ffffe6; |5.35%
|-
|Black or African American alone (NH)
|0
|0
|style='background: #ffffe6; |0
|0.00%
|0.00%
|style='background: #ffffe6; |0.00%
|-
|Native American or Alaska Native alone (NH)
|0
|0
|style='background: #ffffe6; |0
|0.00%
|0.00%
|style='background: #ffffe6; |0.00%
|-
|Asian alone (NH)
|0
|0
|style='background: #ffffe6; |0
|0.00%
|0.00%
|style='background: #ffffe6; |0.00%
|-
|Pacific Islander alone (NH)
|0
|0
|style='background: #ffffe6; |0
|0.00%
|0.00%
|style='background: #ffffe6; |0.00%
|-
|Some Other Race alone (NH)
|0
|0
|style='background: #ffffe6; |0
|0.00%
|0.00%
|style='background: #ffffe6; |0.00%
|-
|Mixed race or Multiracial (NH)
|0
|0
|style='background: #ffffe6; |1
|0.00%
|0.00%
|style='background: #ffffe6; |0.53%
|-
|Hispanic or Latino (any race)
|266
|218
|style='background: #ffffe6; |176
|98.52%
|90.83%
|style='background: #ffffe6; |94.12%
|-
|Total
|270
|240
|style='background: #ffffe6; |187
|100.00%
|100.00%
|style='background: #ffffe6; |100.00%
|}
As of the 2020 United States census, there were 187 people, 40 households, and 28 families residing in the CDP.
2000 census
At the 2000 census there were 270 people, 94 households, and 70 families in the CDP. The population density was . There were 113 housing units at an average density of . The racial makeup of the CDP was 95.19% White, 3.33% from other races, and 1.48% from two or more races. 98.52% of the population were Hispanic or Latino of any race.