ZIP code 57445
Where is ZIP code 57445?
Groton, South Dakota
Brown County · Standard ZIP code
ZIP code 57445 belongs to Groton, South Dakota in Brown County. 57445 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 2,072 people live in the 57445 area, where the median household income is $84,948. The closest ZIP codes are 57439 (Ferney, 8.4 mi south), 57422 (Andover, 9.3 mi east) and 57427 (Bath, 12.1 mi west).
| ZIP code | 57445 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Groton |
| State | South Dakota (SD) |
| County | Brown County |
| Time zone | Central Time · now |
| Area code | 605 |
| Coordinates | 45.4503, -98.1058 map |
| 3-digit prefix | 574 |
Population and income in 57445
| Population | 2,072 · higher than 82% of South Dakota ZIP codes |
|---|---|
| People per square mile | 8 · higher than 64% of South Dakota ZIP codes |
| Median age | 38.3 years · lower than 65% of South Dakota ZIP codes |
| Men / women | 54% / 46% |
| Median household income | $84,948 · higher than 70% of South Dakota ZIP codes |
| Income per person | $46,542 |
| Below the poverty line | 3.5% |
| Bachelor’s degree or higher | 29% of adults 25+ |
| Median home value | $193,800 · higher than 56% of South Dakota ZIP codes |
| Median rent | $1,015 a month |
| Housing units | 989 |
| Households | 865 (2.35 people on average) |
| Owners / renters | 77% / 23% |
| Land area | 253.89 sq mi (plus 0.09 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57445. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 57445
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 57439 | Ferney, SD | 8.4 mi S | PO Box only |
| 57422 | Andover, SD | 9.3 mi E | Standard |
| 57427 | Bath, SD | 12.1 mi W | Standard |
| 57474 | Stratford, SD | 14.1 mi SW | Standard |
| 57468 | Pierpont, SD | 14.5 mi E | Standard |
| 57432 | Claremont, SD | 15.2 mi N | Standard |
| 57402 | Aberdeen, SD | 15.3 mi NW | PO Box only |
| 57433 | Columbia, SD | 17.2 mi NW | Standard |
| 57219 | Bristol, SD | 18.3 mi SE | Standard |
| 57401 | Aberdeen, SD | 18.4 mi W | Standard |
| 57454 | Langford, SD | 19.1 mi NE | Standard |
| 57479 | Warner, SD | 19.3 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57445 or measure the distance to another ZIP code.
How to address mail to 57445
123 MAIN ST
GROTON SD 57445
Put the city, the two-letter state code and the ZIP code on the last line. Avoid James and Putney: USPS doesn’t recognize them as the city for this ZIP code. Adding the 4-digit ZIP+4 code (57445-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 57445?
- 57445 is a Groton, South Dakota ZIP code.
- What county is 57445 in?
- ZIP code 57445 is in Brown County, South Dakota.
- What time zone is ZIP code 57445 in?
- 57445 is in the Central Time zone (America/Chicago).
- What area code is 57445?
- Phone numbers in ZIP code 57445 use area code 605.
- What is the population of ZIP code 57445?
- About 2,072 people live in ZIP code 57445, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 57445?
- The median household income in 57445 is $84,948 a year, higher than 70% of South Dakota ZIP codes.
- What ZIP codes are near 57445?
- The nearest ZIP codes to 57445 are 57439 (Ferney, 8.4 miles), 57422 (Andover, 9.3 miles), 57427 (Bath, 12.1 miles) and 57474 (Stratford, 14.1 miles).