O'Brien, OR Demographics

A map of O'Brien's Population by Race

O'Brien, Oregon has an estimated population of 379, a large decrease from the 470 recorded in the 2020 Census. The population is 90.5% White, 9.5% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of O'Brien, with one dot drawn for each person counted by the Census, color-coded by race.

O'Brien has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Oregon overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In O'Brien, that probability was 33.7% in 2020 and 17.2% in the most recent ACS estimates.

O'Brien is ranked the 308th most populous place in Oregon, out of 426 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). O'Brien was ranked the 287th most populous place in the 2020 Census.

O'Brien's White Population

343 residents of O'Brien, or 90.5% of the population, identify as White. The share of White residents in O'Brien is significantly higher than in Oregon overall, where 71.4% of the population is White. O'Brien ranks 255th statewide in terms of White residents as a share of the population, out of 426 places.

Since the 2020 Census, O'Brien's White population has declined by an estimated 9.3%. White residents' share of O'Brien's population has increased from 80.4% to 90.5%.

O'Brien is more White than neighboring Takilma (81.9% White), Cave Junction (79.1% White), and Gasquet (52.3% White). O'Brien is less White than neighboring Kerby (100% White), and Selma (93.8% White).

O'Brien's Black Population

0 residents of O'Brien, or 0.0% of the population, identify as Black. The share of Black residents in O'Brien is comparable to the share in Oregon overall, where 1.8% of the population is Black. O'Brien ranks 295th statewide in terms of Black residents as a share of the population, out of 426 places.

Since the 2020 Census, O'Brien's Black population has grown from 0 to an estimated 0. Black residents' share of O'Brien's population has remained roughly unchanged at 0.0%.

O'Brien is less Black than neighboring Takilma (12.5% Black).

O'Brien's Asian Population

0 residents of O'Brien, or 0.0% of the population, identify as Asian. The share of Asian residents in O'Brien is slightly lower than in Oregon overall, where 4.4% of the population is Asian. O'Brien ranks 353rd statewide in terms of Asian residents as a share of the population, out of 426 places.

Since the 2020 Census, O'Brien's Asian population has grown from 0 to an estimated 0. Asian residents' share of O'Brien's population has remained roughly unchanged at 0.0%.

O'Brien is less Asian than neighboring Takilma (2.9% Asian), and Cave Junction (1.9% Asian).

O'Brien's Hispanic Population

0 residents of O'Brien, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in O'Brien is considerably lower than in Oregon overall, where 14.7% of the population is Hispanic. O'Brien ranks 142nd statewide in terms of Hispanic residents as a share of the population, out of 426 places.

Since the 2020 Census, O'Brien's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of O'Brien's population has decreased from 9.6% to 0.0%.

O'Brien is less Hispanic than neighboring Takilma (2.7% Hispanic), Cave Junction (13.1% Hispanic), Selma (2.3% Hispanic), and Gasquet (12.1% Hispanic).

O'Brien's Native American/Other Population

0 residents of O'Brien, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in O'Brien is comparable to the share in Oregon overall, where 1.6% of the population is Native American/Other. O'Brien ranks 199th statewide in terms of Native American/Other residents as a share of the population, out of 426 places.

Since the 2020 Census, O'Brien's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of O'Brien's population has decreased from 1.7% to 0.0%.

O'Brien is less Native American/Other than neighboring Cave Junction (0.4% Native American/Other).

O'Brien's Multiracial Population

36 residents of O'Brien, or 9.5% of the population, identify as Multiracial. The share of Multiracial residents in O'Brien is slightly higher than in Oregon overall, where 6.1% of the population is Multiracial. O'Brien ranks 39th statewide in terms of Multiracial residents as a share of the population, out of 426 places.

Since the 2020 Census, O'Brien's Multiracial population has declined by an estimated 7.7%. Multiracial residents' share of O'Brien's population has increased from 8.3% to 9.5%.

O'Brien is more Multiracial than neighboring Takilma (0% Multiracial), Cave Junction (5.6% Multiracial), Kerby (0% Multiracial), and Selma (3.8% Multiracial). O'Brien is less Multiracial than neighboring Gasquet (35.5% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.