O'Brien Population

2011–2026

534

2026 projection

16.4% since 2020 (decrease)

010020030040050060070020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for O'Brien. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026534+20.38%
2025532+40.38%
2023528-9114.70%
2022619+468.03%
2021573-6610.33%
2020639+30.47%
2019636+23056.65%
2018406+12142.46%
2017285-237.47%
2016308+192165.52%

Showing 10 of 15 years.

O'Brien Demographics

66.7median age

Median age

Female66.4 yrs
Male70.4 yrs

Adults

379
273 seniors · 72%106 other adults

Sex

Female 45.6% · 173Male 54.4% · 206

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 4 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

O'Brien Income

$29,252median household income

Median household income

$29,252

Half of households earn more, half earn less

Poverty rate

13.2%

About 1 in 8 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

O'Brien Marital Status

75% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married75%63%90%
Never married0%0%0%
Divorced10%9%10%
Widowed8%15%0%
Separated7%13%0%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201