ZIP code 57233
Where is ZIP code 57233?
Erwin, South Dakota
Kingsbury County · Standard ZIP code
ZIP code 57233 belongs to Erwin, South Dakota in Kingsbury County. 57233 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area code 605. About 350 people live in the 57233 area, where the median household income is $82,917. The closest ZIP codes are 57221 (Bryant, 7.7 mi north), 57249 (Lake Preston, 8.6 mi south) and 57214 (Badger, 9.5 mi east).
| ZIP code | 57233 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Erwin |
| State | South Dakota (SD) |
| County | Kingsbury County |
| Time zone | Central Time · now |
| Area code | 605 |
| Coordinates | 44.4915, -97.4103 map |
| 3-digit prefix | 572 |
Population and income in 57233
| Population | 350 · lower than 67% of South Dakota ZIP codes |
|---|---|
| People per square mile | 10 · higher than 69% of South Dakota ZIP codes |
| Median age | 15.4 years · lower than 99% of South Dakota ZIP codes |
| Men / women | 63% / 37% |
| Median household income | $82,917 · higher than 65% of South Dakota ZIP codes |
| Income per person | $18,478 |
| Below the poverty line | 0.0% |
| Bachelor’s degree or higher | 5.2% of adults 25+ |
| Housing units | 71 |
| Households | 57 (6.14 people on average) |
| Owners / renters | 86% / 14% |
| Land area | 36.73 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57233. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 57233
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 57221 | Bryant, SD | 7.7 mi N | Standard |
| 57249 | Lake Preston, SD | 8.6 mi S | Standard |
| 57214 | Badger, SD | 9.5 mi E | PO Box only |
| 57231 | De Smet, SD | 10.5 mi SW | Standard |
| 57248 | Lake Norden, SD | 12.1 mi NE | Standard |
| 57241 | Hayti, SD | 14.9 mi NE | Standard |
| 57278 | Willow Lake, SD | 16 mi NW | Standard |
| 57271 | Vienna, SD | 17.9 mi N | Standard |
| 57051 | Oldham, SD | 18.4 mi S | Standard |
| 57212 | Arlington, SD | 18.9 mi SE | Standard |
| 57242 | Hazel, SD | 19 mi N | Standard |
| 57353 | Iroquois, SD | 24.1 mi SW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57233 or measure the distance to another ZIP code.
How to address mail to 57233
123 MAIN ST
ERWIN SD 57233
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Spirit Lake: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (57233-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 57233?
- 57233 is a Erwin, South Dakota ZIP code.
- What county is 57233 in?
- ZIP code 57233 is in Kingsbury County, South Dakota.
- What time zone is ZIP code 57233 in?
- 57233 is in the Central Time zone (America/Chicago).
- What area code is 57233?
- Phone numbers in ZIP code 57233 use area code 605.
- What is the population of ZIP code 57233?
- About 350 people live in ZIP code 57233, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 57233?
- The median household income in 57233 is $82,917 a year, higher than 65% of South Dakota ZIP codes.
- What ZIP codes are near 57233?
- The nearest ZIP codes to 57233 are 57221 (Bryant, 7.7 miles), 57249 (Lake Preston, 8.6 miles), 57214 (Badger, 9.5 miles) and 57231 (De Smet, 10.5 miles).