Sinai ZIP code, South Dakota
The ZIP code for Sinai, SD is 57061, and its area code is 605.
- USPS city name
- 1 ZIP code
- Population
- 215
- Area code
- 605
- County
- Brookings County
- State
- South Dakota
Sinai in numbers
About 215 people live in Sinai, in 75 households. The median household income is $56,875 a year, 24% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $89,300 (65% below the South Dakota median). The median age is 24.9; 22.6% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 29 minutes.
| Population | 215 |
|---|---|
| Households | 75 |
| Median age | 24.9 |
| Median household income | $56,875 |
| Median home value | $89,300 |
| Bachelor's degree or higher | 22.6% |
| Mean commute | 29.3 min |
| Population density | 584 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Sinai town. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Sinai
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
57061 | Sinai , SD | Standard | 215 | $56,875 | $89,300 |
Map of Sinai ZIP codes
The ZIP codes of Sinai, SD, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Sinai
The nearest larger towns are Volga (2,408 people, 8.1 mi), Arlington (920 people, 9.3 mi) and Ramona (538 people, 12 mi).
More nearby: every ZIP code in Brookings County · South Dakota ZIP codes
Cite this page
zipcodes.pro. “Sinai, SD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sd/sinai
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