Willow Lake, South Dakota Population & Demographics

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Statistic	Willow Lake	South Dakota	National
Population	454	917,029	336,919,644
Population density (sq mi)	1,219	12	91
Median age	22.8	36.8	37.7
Male/Female ratio	1.1:1	1.0:1	1.0:1
Married (15yrs & older)	76%	59%	55%
Families w/ Kids under 18	74%	44%	43%
Speak English	92%	94%	79%
Speak Spanish	8%	2%	13%

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Homes For Sale In Willow Lake, SD

19396 427th Ave

Willow Lake, SD

411 Garfield Ave

Willow Lake, SD

Demographics Quick Facts

The population density in Willow Lake is 9976% higher than South Dakota
The median age in Willow Lake is 38% lower than South Dakota
In Willow Lake 82.92% of the population is White
In Willow Lake 1.57% of the population is Black
In Willow Lake 0.00% of the population is Asian

Compare Willow Lake, SD Demographics

Willow Lake racial demographics

Race	Willow Lake	South Dakota	National
White	82.92%	84.77%	73.35%
Black	1.57%	1.65%	12.63%
Asian	0.00%	1.33%	5.22%
American Indian	0.00%	8.72%	0.82%
Native Hawaiian	0.00%	0.04%	0.18%
Mixed race	7.42%	2.61%	3.06%
Other race	8.09%	0.88%	4.75%

In Willow Lake, 15.5% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

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Household income distribution

Place of birth by citizenship

Willow Lake age breakdown

Marital status

Age of children in married couples

Source: The Willow Lake, SD demographics data displayed above is derived from the United States Census Bureau American Community Survey (ACS) and include 2026 modeled data developed using proprietary methodologies.