Stillwater Population

1860–2026

19,336

2026 projection

0.3% since 2020 (decrease)

05K10K15K20K186018801900192019401960198020002020

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 Stillwater. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202619,336-180.09%
202519,354+230.12%
202419,331+820.43%
202319,249-590.31%
202219,308-1320.68%
202119,440+380.20%
202019,402-2321.18%
201919,634+2541.31%
201819,380+750.39%
201719,305+680.35%

Showing 10 of 32 years.

Stillwater Demographics

42.5median age

Median age

Female45 yrs
Male39.5 yrs

Adults

15,273
3,840 seniors · 25%11,433 other adults

Sex

Female 49.3% · 9,541Male 50.7% · 9,814

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 194 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

Stillwater Income

$105,853median household income

Median household income

$105,853

Half of households earn more, half earn less

Median earnings

$61,635

Typical yearly pay for a worker 25 or older.

Poverty rate

7.3%

About 1 in 14 residents

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

Stillwater Marital Status

51% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married51%50%52%
Never married29%35%22%
Divorced14%11%17%
Widowed6%4%9%
Separated<1%<1%<1%

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