East Mountain is a city in Upshur and Gregg Counties, Texas, United States. Its population was 899 at the 2020 census, an increase over the figure of 797 tabulated in 2010.
Geography
East Mountain is located in southeastern Upshur County. Small portions of the city extend south along Gilmer Road and Coulter Road into Gregg County.
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2020 census
As of the 2020 census, East Mountain had a population of 899, 356 households, and 250 families.
The median age was 42.9 years. 23.4% of residents were under the age of 18 and 20.1% of residents were 65 years of age or older. For every 100 females there were 106.7 males, and for every 100 females age 18 and over there were 102.6 males age 18 and over.
{| class="wikitable"
|+ Racial composition as of the 2020 census
! Race !! Number !! Percent
|-
| White || 744 || 82.8%
|-
| Black or African American || 15 || 1.7%
|-
| American Indian and Alaska Native || 6 || 0.7%
|-
| Asian || 3 || 0.3%
|-
| Native Hawaiian and Other Pacific Islander || 0 || 0.0%
|-
| Some other race || 61 || 6.8%
|-
| Two or more races || 70 || 7.8%
|-
| Hispanic or Latino (of any race) || 106 || 11.8%
|}
2000 census
As of the 2000 census,
The small portion of East Mountain in Gregg County is in the Longview Independent School District. Longview High School is that district's comprehensive high school.
Areas in Gilmer, Longview, and Union Grove ISDs are in the Kilgore Junior College service area.