Zip code 57278: Willow Lake, South Dakota

Q: What city is zip code 57278?

57278 is assigned to Willow Lake, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 57278 in?

57278 is in Clark County, South Dakota.

Q: What is the population of 57278?

About 1,011 people live in 57278, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 57278?

The median household income in 57278 is $70,208.

Q: What zip codes are near 57278?

The closest zip codes to 57278 are 57271, 57221, 57322, 57225, 57233.

Residential delivery areaClark CountyCentral Time

Population

1,011

Median household income

$70K

U.S. $81K

Median home value

$220K

U.S. $333K

Median rent

$808/mo

U.S. $1,413

Median age

24.6

U.S. 38.9

Land area

158 sq mi

6 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 57278

57278 is a rural zip code in Willow Lake, South Dakota (Clark County), covering 158 sq mi of land. About 1,011 people live here, or 6 per square mile. The median resident is 24.6 years old, compared with 38.9 nationally.

The median household earns $70,208 a year, 13% below the national median of $80,734. 6.7% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $220,400, or 3.1 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 78% of occupied homes are lived in by their owners, and renters pay a median of $808 a month.

26% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 19.6 minutes each way, and 32% of workers work from home. The most common jobs among working residents are in management; office and administrative support; and cleaning and personal care. 32% of them are self-employed (U.S.: 10%).

How 57278 compares

Sorted from highest to lowest national percentile

Residents under 1841.9%
99th
U.S. 22% · SD 24.2%19th of 347 in SD
Self-employed workers31.8%
99th
U.S. 10% · SD 12.1%67th of 347 in SD
Work from home31.9%
96th
U.S. 15.1% · SD 9.7%27th of 347 in SD
Homeownership rate77.6%
73rd
U.S. 65.2% · SD 68.6%193rd of 344 in SD
Housing vacancy10.5%
73rd
U.S. 10.1% · SD 10.5%233rd of 344 in SD
Veterans6.6%
61st
U.S. 6.2% · SD 7.9%178th of 347 in SD
Median household income$70,208
36th
U.S. $80,734 · SD $75,081198th of 327 in SD
Bachelor's degree or higher25.5%
35th
U.S. 35.7% · SD 31.9%162nd of 346 in SD
Tech workers2%
33rd
U.S. 3.8% · SD 2.3%64th of 347 in SD
Government workers11.5%
31st
U.S. 14.5% · SD 15.8%231st of 347 in SD
Median home value$220,400
26th
U.S. $332,700 · SD $257,400100th of 302 in SD
Residents 65 and older13.4%
26th
U.S. 17.2% · SD 18%268th of 347 in SD
Income inequality (Gini)0.406
25th
U.S. 0.483 · SD 0.449185th of 343 in SD
Poverty rate6.7%
23rd
U.S. 12.5% · SD 11.9%218th of 344 in SD
Foreign-born residents2.8%
17th
U.S. 14.1% · SD 4%72nd of 347 in SD
Uninsured rate3.3%
15th
StrengthU.S. 8.4% · SD 9%270th of 347 in SD
Broadband access85.5%
14th
WeaknessU.S. 91% · SD 89.6%220th of 344 in SD
Average commute19.6 min
11th
StrengthU.S. 26.4 min · SD 17.8 min178th of 330 in SD
Per capita income$25,003
8th
WeaknessU.S. $44,673 · SD $40,550300th of 347 in SD
Median gross rent$808
7th
U.S. $1,413 · SD $946101st of 243 in SD
Diversity index14.6
7th
U.S. 61.4 · SD 35.4190th of 347 in SD
Median earnings per worker$30,563
3rd
WeaknessU.S. $49,666 · SD $46,539310th of 345 in SD
Population1,011
1st
U.S. 334,922,499 · SD 907,428139th of 347 in SD
Population density6/sq mi
1st
U.S. 95/sq mi · SD 12/sq mi152nd of 347 in SD
Median age24.6
1st
U.S. 38.9 · SD 38322nd of 347 in SD
Unemployment rate0%
1st
StrengthU.S. 5.2% · SD 2.9%247th of 347 in SD
Rent-burdened renters14%
1st
StrengthU.S. 51.1% · SD 39.8%230th of 313 in SD
Healthcare workers2.3%
1st
U.S. 9.7% · SD 10.5%279th of 347 in SD

Measure	57278	Clark	SD	U.S.	National percentile	Rank in SD
Residents under 18	41.9%	29.4%	24.2%	22%	99th	19th of 347
Self-employed workers	31.8%	23.3%	12.1%	10%	99th	67th of 347
Work from home	31.9%	17.1%	9.7%	15.1%	96th	27th of 347
Homeownership rate	77.6%	77.5%	68.6%	65.2%	73rd	193rd of 344
Housing vacancy	10.5%	17%	10.5%	10.1%	73rd	233rd of 344
Veterans	6.6%	7.7%	7.9%	6.2%	61st	178th of 347
Median household income	$70,208	$70,726	$75,081	$80,734	36th	198th of 327
Bachelor's degree or higher	25.5%	19.7%	31.9%	35.7%	35th	162nd of 346
Tech workers	2%	1.5%	2.3%	3.8%	33rd	64th of 347
Government workers	11.5%	12.7%	15.8%	14.5%	31st	231st of 347
Median home value	$220,400	$158,400	$257,400	$332,700	26th	100th of 302
Residents 65 and older	13.4%	23.5%	18%	17.2%	26th	268th of 347
Income inequality (Gini)	0.406	0.441	0.449	0.483	25th	185th of 343
Poverty rate	6.7%	10.9%	11.9%	12.5%	23rd	218th of 344
Foreign-born residents	2.8%	2.7%	4%	14.1%	17th	72nd of 347
Uninsured rateStrength	3.3%	7%	9%	8.4%	15th	270th of 347
Broadband accessWeakness	85.5%	85.8%	89.6%	91%	14th	220th of 344
Average commuteStrength	19.6 min	20.8 min	17.8 min	26.4 min	11th	178th of 330
Per capita incomeWeakness	$25,003	$34,226	$40,550	$44,673	8th	300th of 347
Median gross rent	$808	$782	$946	$1,413	7th	101st of 243
Diversity index	14.6	17.3	35.4	61.4	7th	190th of 347
Median earnings per workerWeakness	$30,563	$42,922	$46,539	$49,666	3rd	310th of 345
Population	1,011	3,917	907,428	334,922,499	1st	139th of 347
Population density	6/sq mi	4/sq mi	12/sq mi	95/sq mi	1st	152nd of 347
Median age	24.6	40.3	38	38.9	1st	322nd of 347
Unemployment rateStrength	0%	4%	2.9%	5.2%	1st	247th of 347
Rent-burdened rentersStrength	14%	25.9%	39.8%	51.1%	1st	230th of 313
Healthcare workers	2.3%	4.9%	10.5%	9.7%	1st	279th of 347

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

12%

Under 5

29%

5–17

18–24

12%

25–34

35–44

45–54

12%

55–64

65–74

75+

Median age

24.6

Under 18

41.9%

65 and over

13.4%

Race and ethnicity

White92%
Black2%
Hispanic0.7%
Asian2%
Native American0%
Pacific Islander0%
Other0%
Multiracial4%

Diversity index

14.6

U.S. 61.4

Foreign-born

2.8%

U.S. 14.1%

Born in state

84.2%

Language spoken at home (households)

English only

94%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 255
Average household size: 3.7
Family households: 74.5%
Married couples: 66.7%
Living alone: 25.1%
Veterans (of adults): 6.6%
Male / female: 51% / 49%

Income and poverty

Household income distribution

<$25k

$25–50k

17%

$50–75k

32%

$75–100k

18%

$100–150k

20%

$150–200k

$200k+

Median household income

57278

$70,208

Clark Co.

$70,726

South Dakota

$75,081

United States

$80,734

Per capita income

$25,003

U.S. $44,673

Poverty rate

6.7%

U.S. 12.5%

Households earning $150K+

6.3%

U.S. 23%

Income inequality (Gini)

0.406

U.S. 0.483

Housing

Median home value

57278

$220,400

Clark Co.

$158,400

South Dakota

$257,400

United States

$332,700

Median gross rent

57278

$808

Clark Co.

$782

South Dakota

$946

United States

$1,413

Types of housing

Single-family

95%

2–4 units

5–19 units

20+ units

Mobile home

0.7%

Boat, RV, van

Housing units: 285
Owner-occupied: 77.6%
Vacant: 10.5%
Median year built: 1967
Median rooms: 6.9
Renters paying 30%+ of income: 14%
Renters paying 50%+ of income: 8%
Home value to income: 3.1× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

57%

Carpooled

Transit

Walked

Bicycle

Worked from home

32%

Other

0.8%

Commute time (one way)

<10 min

30%

10–19

33%

20–29

30–44

18%

45–59

13%

60+

Average commute

19.6 min

U.S. 26.4 min

Unemployment

U.S. 5.2%

In labor force

63.2%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

20%

Office and admin

16%

Cleaning and personal care

12%

Sales

10%

Education

Construction and repair

Arts, media and sports

Business and finance

Farming, fishing and forestry

Healthcare

Computer and math

Legal and social services

Transportation and moving

Production

Police and fire

0.8%

Engineering and science

Food service

Industries

Agriculture and mining

27%

Arts and recreation

16%

Construction

11%

Education

10%

Retail

Other services

Wholesale

Professional and technical services

Transportation, warehousing and utilities

Manufacturing

Health care and social assistance

Finance, insurance and real estate

Restaurants and hotels

Public administration

0.8%

Information

0.8%

Admin, support and management

Median earnings per worker

$30,563

U.S. $49,666

Self-employed

31.8%

U.S. 10%

Government workers

11.5%

U.S. 14.5%

Nonprofit workers

9.5%

U.S. 8.8%

Median earnings by type of work

Type of work	57278	U.S.
Management, business, science and arts	$42,955	$74,888
Service	$13,125	$26,804
Sales and office	$28,250	$40,476
Construction and maintenance	$57,500	$49,199
Production and transportation	$51,875	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

34%

Some college

27%

Associate's

12%

Bachelor's

24%

Graduate

High school graduate or higher: 98.4%
Bachelor's degree or higher: 25.5%
Graduate or professional degree: 1.4%
Households with broadband: 85.5%
Cable, fiber or DSL: 80.4%
No internet access: 12.5%
Without health insurance: 3.3%
Limited-English households: 0%

Geography

City (USPS): Willow Lake
State: South Dakota
County: Clark County
Center point: 44.6488° N, 97.6812° W
Land area: 158 sq mi
Water area: 1.3 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

Zip codes near 57278

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
57271	Vienna, SD	10 mi	246	$85,524	$307,800
57221	Bryant, SD	12 mi	1,158	$73,988	$227,100
57322	Carpenter, SD	14 mi	378	$71,667	$247,500
57225	Clark, SD	16 mi	1,833	$66,875	$155,100
57233	Erwin, SD	17 mi	350	$82,917	—
57242	Hazel, SD	18 mi	320	$113,958	$177,100
57386	Yale, SD	18 mi	240	$76,250	$158,700
57231	De Smet, SD	20 mi	1,724	$78,646	$212,200
57258	Raymond, SD	20 mi	510	$58,295	—
57353	Iroquois, SD	21 mi	812	$75,625	$139,300
57243	Henry, SD	22 mi	549	$48,542	$117,500
57241	Hayti, SD	23 mi	936	$85,833	$123,000

Zip codes like 57278 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 57278

What city is zip code 57278?

57278 is assigned to Willow Lake, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 57278 in?

57278 is in Clark County, South Dakota.

What is the population of 57278?

About 1,011 people live in 57278, according to the Census Bureau's American Community Survey.

What time zone is 57278 in?

57278 is in Central Time.

What is the median household income in 57278?

The median household income in 57278 is $70,208.

What zip codes are near 57278?

The closest zip codes to 57278 are 57271, 57221, 57322, 57225, 57233.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 57278, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.