What city is ZIP code 57278?

57278 is a Willow Lake, South Dakota ZIP code.

What county is 57278 in?

ZIP code 57278 is in Clark County, South Dakota.

What time zone is ZIP code 57278 in?

57278 is in the Central Time zone (America/Chicago).

What area code is 57278?

Phone numbers in ZIP code 57278 use area code 605.

What is the population of ZIP code 57278?

About 1,011 people live in ZIP code 57278, according to the Census Bureau’s American Community Survey (2020–2024).

What is the median income in 57278?

The median household income in 57278 is $70,208 a year, lower than 60% of South Dakota ZIP codes.

What ZIP codes are near 57278?

The nearest ZIP codes to 57278 are 57271 (Vienna, 10.3 miles), 57221 (Bryant, 11 miles), 57322 (Carpenter, 12.2 miles) and 57233 (Erwin, 16 miles).

ZIP code 57278

Where is ZIP code 57278?

Willow Lake, South Dakota

Clark County · Standard ZIP code

ZIP code 57278 belongs to Willow Lake, South Dakota in Clark County. 57278 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 1,011 people live in the 57278 area, where the median household income is $70,208. The closest ZIP codes are 57271 (Vienna, 10.3 mi northeast), 57221 (Bryant, 11 mi east) and 57322 (Carpenter, 12.2 mi west).

ZIP code	57278
Type	Standard ZIP code for street addresses and PO Boxes
Status	Active
City	Willow Lake
State	South Dakota (SD)
County	Clark County
Time zone	Central Time · now
Area code	605
Coordinates	44.6272, -97.6747 map
3-digit prefix	572

Population and income in 57278

Population	1,011 · higher than 63% of South Dakota ZIP codes
People per square mile	6 · higher than 55% of South Dakota ZIP codes
Median age	24.6 years · lower than 93% of South Dakota ZIP codes
Men / women	51% / 49%
Median household income	$70,208 · lower than 60% of South Dakota ZIP codes
Income per person	$25,003
Below the poverty line	6.7%
Bachelor’s degree or higher	26% of adults 25+
Median home value	$220,400 · higher than 67% of South Dakota ZIP codes
Median rent	$808 a month
Housing units	285
Households	255 (3.66 people on average)
Owners / renters	78% / 22%
Land area	157.59 sq mi (plus 1.25 sq mi of water)

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57278. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.

ZIP codes near 57278

ZIP code	City	Distance	Type
57271	Vienna, SD	10.3 mi NE	Standard
57221	Bryant, SD	11 mi E	Standard
57322	Carpenter, SD	12.2 mi W	Standard
57233	Erwin, SD	16 mi SE	Standard
57225	Clark, SD	17.5 mi N	Standard
57231	De Smet, SD	17.6 mi S	Standard
57386	Yale, SD	19.4 mi W	Standard
57242	Hazel, SD	20.1 mi NE	Standard
57258	Raymond, SD	20.2 mi NW	Standard
57243	Henry, SD	21.1 mi NE	Standard
57353	Iroquois, SD	21.4 mi SW	Standard
57241	Hayti, SD	22 mi E	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57278 or measure the distance to another ZIP code.

How to address mail to 57278

JANE SMITH
123 MAIN ST
WILLOW LAKE SD 57278

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (57278-XXXX) helps mail sort faster but isn’t required.

Questions

What city is ZIP code 57278?: 57278 is a Willow Lake, South Dakota ZIP code.
What county is 57278 in?: ZIP code 57278 is in Clark County, South Dakota.
What time zone is ZIP code 57278 in?: 57278 is in the Central Time zone (America/Chicago).
What area code is 57278?: Phone numbers in ZIP code 57278 use area code 605.
What is the population of ZIP code 57278?: About 1,011 people live in ZIP code 57278, according to the Census Bureau’s American Community Survey (2020–2024).
What is the median income in 57278?: The median household income in 57278 is $70,208 a year, lower than 60% of South Dakota ZIP codes.
What ZIP codes are near 57278?: The nearest ZIP codes to 57278 are 57271 (Vienna, 10.3 miles), 57221 (Bryant, 11 miles), 57322 (Carpenter, 12.2 miles) and 57233 (Erwin, 16 miles).