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The total population of O'Brien is estimated to be 90 with 49 males (54.44%) and 41 females (45.56%). There are 8 less females than males in O'Brien.
In 2022, the population of O'Brien was 88, a 0.00% decrease year-by-year from 2021. Previously, in 2021, O'Brien's population was 88, a decline of 0.00% compared to a population of 88 in 2020.
The median age in O'Brien, TX is 45.5, as per 2021 ACS 5-Year Estimates. Of the total population, 3.16% were under the age of 15, 37.89% aged 15 to 29, 14.74% aged 30 to 64, 30.53% aged 65 to 84, and 13.68% were 85 years of age and older.
Racial distribution of O'Brien population: 68.42% are White, 18.95% are some other race and 12.63% are multiracial.