Benton County Population

1840–2026

16,261

2026 projection

2.6% since 2020 (increase)

05K10K15K20K1840186018801900192019401960198020002020

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 Benton County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202616,261+780.48%
202516,183+780.48%
202416,105-550.34%
202316,160+1781.11%
202215,982+1570.99%
202115,825-220.14%
202015,847-3522.17%
201916,199-540.33%
201816,253+2641.65%
201715,989-1050.65%

Showing 10 of 33 years.

Benton County Demographics

47.8median age

Median age

Female48.4 yrs
Male47.3 yrs

Adults

12,781
3,874 seniors (65+) · 30% of adults8,907 other adults

Sex

Female 50.6% · 8,101Male 49.4% · 7,905

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 160 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

Benton County Income

$51,746median household income

Median household income

$51,746

Half of households earn more, half earn less

Median earnings

$42,645

Typical yearly pay for a worker 25 or older.

Poverty rate

17.9%

About 1 in 6 residents

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

Benton County Marital Status

50% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married50%54%47%
Never married23%25%21%
Divorced13%14%13%
Widowed11%6%16%
Separated3%2%3%

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