Tumwater Population

1870–2026

28,410

2026 projection

8.7% since 2020 (increase)

05K10K15K20K25K30K18801900192019401960198020002020

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 Tumwater. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202628,410+4001.43%
202528,010+2771.00%
202427,733+6032.22%
202327,130+3861.44%
202226,744-770.29%
202126,821+6882.63%
202026,133+2,2069.22%
201923,927+3221.36%
201823,605+6702.92%
201722,935+5682.54%

Showing 10 of 31 years.

Tumwater Demographics

37.1median age

Median age

Female37.9 yrs
Male36.5 yrs

Adults

21,344
4,204 seniors · 20%17,140 other adults

Sex

Female 52.3% · 14,104Male 47.7% · 12,852

Population by age

MaleFemale85+ years, male: 23985+ years, female: 21880–84 years, male: 21480–84 years, female: 26775–79 years, male: 30775–79 years, female: 43270–74 years, male: 62770–74 years, female: 63865–69 years, male: 50165–69 years, female: 76160–64 years, male: 65560–64 years, female: 96555–59 years, male: 67655–59 years, female: 76650–54 years, male: 65450–54 years, female: 90145–49 years, male: 1,06045–49 years, female: 84940–44 years, male: 70640–44 years, female: 85435–39 years, male: 1,33735–39 years, female: 1,03230–34 years, male: 1,06730–34 years, female: 1,28325–29 years, male: 98925–29 years, female: 1,21920–24 years, male: 75120–24 years, female: 96615–19 years, male: 76415–19 years, female: 52010–14 years, male: 88110–14 years, female: 7315–9 years, male: 6515–9 years, female: 1,0870–4 years, male: 7730–4 years, female: 61585+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

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 270 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

Tumwater Income

$95,212median household income

Median household income

$95,212

Half of households earn more, half earn less

Median earnings

$62,893

Typical yearly pay for a worker 25 or older.

Poverty rate

7%

About 1 in 14 residents

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

Tumwater Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%51%46%
Never married31%34%29%
Divorced14%11%17%
Widowed5%3%7%
Separated2%2%1%

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

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year