Kennewick Population

1900–2026

89,136

2026 projection

6.1% since 2020 (increase)

020K40K60K80K100K1900192019401960198020002020

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 Kennewick. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202689,136+7700.87%
202588,366+1,2711.46%
202487,095+1,0181.18%
202386,077+8501.00%
202285,227+5180.61%
202184,709+6940.83%
202084,015-2500.30%
201984,265+1,6121.95%
201882,653+1,0181.25%
201781,635+1,5181.89%

Showing 10 of 28 years.

Kennewick Demographics

35.7median age

Median age

Female36 yrs
Male35.5 yrs

Adults

62,994
13,616 seniors · 22%49,378 other adults

Sex

Female 50.7% · 43,236Male 49.3% · 42,059

Population by age

MaleFemale85+ years, male: 72185+ years, female: 1,13080–84 years, male: 54780–84 years, female: 81175–79 years, male: 88675–79 years, female: 74970–74 years, male: 1,63470–74 years, female: 1,89165–69 years, male: 2,67565–69 years, female: 2,57260–64 years, male: 2,54460–64 years, female: 2,75755–59 years, male: 1,74855–59 years, female: 2,50950–54 years, male: 2,20150–54 years, female: 1,65945–49 years, male: 2,41745–49 years, female: 2,28240–44 years, male: 2,33140–44 years, female: 2,69735–39 years, male: 3,61335–39 years, female: 3,05130–34 years, male: 2,69130–34 years, female: 3,08625–29 years, male: 2,97525–29 years, female: 2,96220–24 years, male: 3,08820–24 years, female: 2,40615–19 years, male: 3,21615–19 years, female: 3,37810–14 years, male: 2,97910–14 years, female: 2,5005–9 years, male: 3,0795–9 years, female: 3,3990–4 years, male: 2,7140–4 years, female: 3,39785+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K3K3K

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 853 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

Kennewick Income

$73,576median household income

Median household income

$73,576

Half of households earn more, half earn less

Median earnings

$51,420

Typical yearly pay for a worker 25 or older.

Poverty rate

14.3%

About 1 in 7 residents

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

Kennewick Marital Status

46% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married46%47%45%
Never married36%39%33%
Divorced12%10%13%
Widowed5%2%7%
Separated1%<1%2%

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