ZIP code 57779: Saint Onge, SD
57779 is a ZIP code in Saint Onge, South Dakota, mainly in Lawrence County, part of the Spearfish, SD micro area. About 347 people live here.
- Population
- 347
- Median household income
- —
- Typical home value
- $286,400ACS median value
- Median rent
- —gross, per month
- Median age
- 53.3
- Homeowners
- 100%of occupied homes
Shaded: ZIP code 57779's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 57779 details
| City | Saint Onge |
|---|---|
| State | South Dakota |
| County | Lawrence County (also partly Butte County) |
| Metro area | Spearfish, SD |
| Time zone | Mountain Time (UTC−7), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 41.1 sq mi, plus 0 sq mi of water |
| Population density | 8 people per sq mi |
| Bachelor's degree or higher | 67.4% of adults 25+ |
| Average commute | 28.7 minutes |
| Center coordinates | 44.56877, -103.76072 |
ZIP codes near 57779
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 57799 | Spearfish, SD | 7.4 mi | 568 |
| 57793 | Whitewood, SD | 9.4 mi | 2,173 |
| 57783 | Spearfish, SD | 11.2 mi | 17,248 |
| 57762 | Nisland, SD | 14.5 mi | 512 |
| 57732 | Deadwood, SD | 16.9 mi | 1,714 |
| 57741 | Fort Meade, SD | 17.9 mi | 141 |
| 82712 | Beulah, WY | 18.1 mi | 163 |
| 57754 | Lead, SD | 22.5 mi | 3,749 |
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
Buying a home in 57779?
A typical home in ZIP code 57779 is worth about $286,400 (ACS median value). See what buying here would cost per month, with South Dakota average taxes and insurance filled in.
About ZIP code 57779
What city is ZIP code 57779?
ZIP code 57779 is in Saint Onge, SD, in Lawrence County.
What county is ZIP code 57779 in?
57779 is mainly in Lawrence County, South Dakota, and partly in Butte County.
What is the population of ZIP code 57779?
About 347 people live in ZIP code 57779, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 57779 in?
57779 is in Mountain Time (UTC−7). It observes daylight saving time.