Sentinel Population

2010–2026

754

2026 projection

1.2% since 2020 (decrease)

02004006008001K201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal 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 Sentinel. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026754-20.26%
2025756+40.53%
2024752+70.94%
202374500.00%
2022745-121.59%
2021757-60.79%
2020763-131.68%
2019776-192.39%
2018795-81.00%
2017803-364.29%

Showing 10 of 17 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Sentinel has a population change about the same as Washita County, and lower than Oklahoma and the U.S.

  • Oklahoma+4.0%
  • United States+3.1%
  • Sentinel−0.1%
  • Washita County−0.2%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Sentinel Demographics

41.3median age

Median age

Female59.1 yrs
Male35.9 yrs

Adults

736
280 seniors (65+) · 38% of adults456 other adults

Sex

Female 54.8% · 515Male 45.2% · 424

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 9 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

Sentinel Income

$120,227median household income

Median household income

$120,227

Half of households earn more, half earn less

Median earnings

$80,129

Typical yearly pay for a worker 25 or older.

Poverty rate

16.7%

About 1 in 6 residents

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

Sentinel Marital Status

60% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married60%52%66%
Never married20%30%12%
Divorced12%17%9%
Widowed7%2%11%
Separated1%0%2%

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