Willmar Population

1880–2026

22,222

2026 projection

5.6% since 2020 (increase)

05K10K15K20K25K18801900192019401960198020002020

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 Willmar. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202622,222+2211.00%
202522,001+680.31%
202421,933+3161.46%
202321,617+2391.12%
202221,378+2771.31%
202121,101+520.25%
202021,049+1,2066.08%
201919,843+1700.86%
201819,673+390.20%
201719,634+260.13%

Showing 10 of 30 years.

Willmar Demographics

35.5median age

Median age

Female36.5 yrs
Male33.9 yrs

Adults

15,869
4,021 seniors · 25%11,848 other adults

Sex

Female 52.4% · 11,209Male 47.6% · 10,169

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 214 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

Willmar Income

$62,280median household income

Median household income

$62,280

Half of households earn more, half earn less

Median earnings

$41,567

Typical yearly pay for a worker 25 or older.

Poverty rate

13.1%

About 1 in 8 residents

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

Willmar 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%51%42%
Never married36%37%35%
Divorced12%10%13%
Widowed5%2%8%
Separated1%<1%2%

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