Willow Lake, SD ZIP Codes
One ZIP code serves Willow Lake, South Dakota: 57278. Together they are home to 1,011 residents in 255 households. That is more than the 433 people counted inside Willow Lake city limits, because these ZIP codes reach past its boundary.
Willow Lake city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 433 |
| Households | 111 |
| Median household income | $72,875 |
| Median home value | $149,000 |
| Median age | 17.5 |
| Median rent | $815 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 1,011 |
| Households (sum of ZIP codes) | 255 |
| Median household income, range across ZIP codes | $70,208 (57278) to $70,208 (57278) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $70,208 |
| Homeowners | 77.6% |
| Households with kids under 18 | 41.2% |
| Moved in the past year | 8.9% |
| Carrier routes in EDDM2GO's route library | 2 routes, 231 homes (1 of 1 ZIP codes) |
Every ZIP code in Willow Lake
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 57278 | Willow Lake | 1,011 | 255 | $70,208 | $220,400 | 77.6% | 41.2% | 8.9% | 2 | 245 | 0% of its land; mailing city |
A ZIP code is listed for Willow Lake when at least 10% of its land lies inside Willow Lake city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Willow Lake. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Willow Lake.
Counties
- Clark County — 11 ZIP codes
Price a mailing to Willow Lake ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Willow Lake, SD?
- 57278. A ZIP code is listed for Willow Lake when at least 10% of its land lies inside Willow Lake city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Willow Lake.
- What is the population of Willow Lake, SD?
- The Census Bureau counts 433 residents inside Willow Lake city limits (ACS 2020–2024). The 1 ZIP code that serve Willow Lake hold 1,011 residents in all.
- What is the median household income in Willow Lake, SD?
- $72,875 inside Willow Lake city limits, per the Census Bureau. Across its ZIP codes the medians run from $70,208 to $70,208.
- How many carrier routes and mailboxes are in Willow Lake, SD?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 2 carrier routes reaching 231 residential and 14 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.