Willow Lake, SD ZIP code
The ZIP code for Willow Lake, South Dakota is 57278. It is in Clark County.
- Population in these ZIPs
- 1,011
- Avg. median income
- $70,200population-weighted
- Typical home value
- $220,400population-weighted
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Willow Lake, SD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 57278 | 1,011 | $70,208 | $220,400 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Willow Lake
Frequently asked questions
What is the ZIP code for Willow Lake, SD?
The ZIP code for Willow Lake, SD is 57278.
What county is Willow Lake, South Dakota in?
Willow Lake ZIP codes are in Clark County.