Siloam Springs Population

1880–2026

21,965

2026 projection

27.1% since 2020 (increase)

05K10K15K20K25K18801900192019401960198020002020

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 Siloam Springs. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202621,965+6673.13%
202521,298+1,0955.42%
202420,203+7804.02%
202319,423+7584.06%
202218,665+7394.12%
202117,926+6393.70%
202017,287+3712.19%
201916,916+1520.91%
201816,764+10.01%
201716,763+3452.10%

Showing 10 of 30 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

Siloam Springs is growing faster than Benton County, Arkansas, and the U.S.

  • Siloam Springs+21.5%
  • Benton County+16.0%
  • Arkansas+3.3%
  • United States+3.1%

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.

Siloam Springs Demographics

32.3median age

Median age

Female32.9 yrs
Male31.1 yrs

Adults

13,858
1,977 seniors (65+) · 14% of adults11,881 other adults

Sex

Female 52.1% · 9,740Male 47.9% · 8,959

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 187 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

Siloam Springs Income

$72,065median household income

Median household income

$72,065

Half of households earn more, half earn less

Median earnings

$41,163

Typical yearly pay for a worker 25 or older.

Poverty rate

14.6%

About 1 in 7 residents

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

Siloam Springs Marital Status

52% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married52%56%49%
Never married35%35%34%
Divorced8%6%10%
Widowed4%1%6%
Separated1%1%<1%

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