What city is ZIP code 57420?

57420 is a Akaska, South Dakota ZIP code.

What county is 57420 in?

ZIP code 57420 is in Walworth County, South Dakota.

What time zone is ZIP code 57420 in?

57420 is in the Central Time zone (America/Chicago).

What area code is 57420?

Phone numbers in ZIP code 57420 use area code 605.

What is the population of ZIP code 57420?

About 260 people live in ZIP code 57420, according to the Census Bureau’s American Community Survey (2020–2024).

What is the median income in 57420?

The median household income in 57420 is $40,469 a year, lower than 95% of South Dakota ZIP codes.

Can I use 57420 for a street address?

No. 57420 is only for PO Boxes. Street addresses in Akaska use another ZIP code.

What ZIP codes are near 57420?

The nearest ZIP codes to 57420 are 57472 (Selby, 10.6 miles), 57631 (Glenham, 15.8 miles), 57452 (Java, 16.5 miles) and 57450 (Hoven, 18.1 miles).

ZIP code 57420

Where is ZIP code 57420?

Akaska, South Dakota

Walworth County · PO Box only ZIP code

ZIP code 57420 belongs to Akaska, South Dakota in Walworth County. 57420 is a PO Box only ZIP code: it is used for post office boxes at the Akaska post office, not for street addresses. It is in the Central Time zone and uses area code 605. About 260 people live in the 57420 area, where the median household income is $40,469. The closest ZIP codes are 57472 (Selby, 10.6 mi north), 57631 (Glenham, 15.8 mi northwest) and 57452 (Java, 16.5 mi northeast).

ZIP code	57420
Type	PO Box only (no street delivery)
Status	Active
City	Akaska
State	South Dakota (SD)
County	Walworth County
Time zone	Central Time · now
Area code	605
Coordinates	45.3324, -100.1186 map
3-digit prefix	574

Population and income in 57420

Population	260 · lower than 74% of South Dakota ZIP codes
People per square mile	6 · higher than 55% of South Dakota ZIP codes
Median age	21.6 years · lower than 96% of South Dakota ZIP codes
Men / women	61% / 39%
Median household income	$40,469 · lower than 95% of South Dakota ZIP codes
Income per person	$16,487
Below the poverty line	45%
Bachelor’s degree or higher	37% of adults 25+
Median home value	$79,000 · lower than 90% of South Dakota ZIP codes
Housing units	193
Households	107 (2.43 people on average)
Owners / renters	65% / 35%
Land area	44.27 sq mi (plus 0.02 sq mi of water)

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57420. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.

ZIP codes near 57420

ZIP code	City	Distance	Type
57472	Selby, SD	10.6 mi N	Standard
57631	Glenham, SD	15.8 mi NW	Standard
57452	Java, SD	16.5 mi NE	Standard
57450	Hoven, SD	18.1 mi SE	Standard
57601	Mobridge, SD	20.9 mi NW	Standard
57442	Gettysburg, SD	22.3 mi S	Standard
57428	Bowdle, SD	24 mi E	Standard
57646	Mound City, SD	24.2 mi N	Standard
57652	Ridgeview, SD	25.3 mi W	Standard
57475	Tolstoy, SD	26.8 mi SE	Standard
57455	Lebanon, SD	28.9 mi SE	Standard
57657	Trail City, SD	31 mi W	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57420 or measure the distance to another ZIP code.

How to address mail to 57420

JANE SMITH
PO BOX 123
AKASKA SD 57420

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (57420-XXXX) helps mail sort faster but isn’t required.

Questions

What city is ZIP code 57420?: 57420 is a Akaska, South Dakota ZIP code.
What county is 57420 in?: ZIP code 57420 is in Walworth County, South Dakota.
What time zone is ZIP code 57420 in?: 57420 is in the Central Time zone (America/Chicago).
What area code is 57420?: Phone numbers in ZIP code 57420 use area code 605.
What is the population of ZIP code 57420?: About 260 people live in ZIP code 57420, according to the Census Bureau’s American Community Survey (2020–2024).
What is the median income in 57420?: The median household income in 57420 is $40,469 a year, lower than 95% of South Dakota ZIP codes.
Can I use 57420 for a street address?: No. 57420 is only for PO Boxes. Street addresses in Akaska use another ZIP code.
What ZIP codes are near 57420?: The nearest ZIP codes to 57420 are 57472 (Selby, 10.6 miles), 57631 (Glenham, 15.8 miles), 57452 (Java, 16.5 miles) and 57450 (Hoven, 18.1 miles).