Zip code 57233: Erwin, South Dakota

Q: What city is zip code 57233?

57233 is assigned to Erwin, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 57233 in?

57233 is in Kingsbury County, South Dakota.

Q: What is the population of 57233?

About 350 people live in 57233, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 57233?

The median household income in 57233 is $82,917.

Q: What zip codes are near 57233?

The closest zip codes to 57233 are 57221, 57249, 57214, 57248, 57231.

Residential delivery areaKingsbury CountyCentral Time

Population

350

Small sample: rough estimates

Median household income

$83K

U.S. $81K

Median home value

—

U.S. $333K

Median rent

—

U.S. $1,413

Median age

15.4

U.S. 38.9

Land area

37 sq mi

10 people/sq mi

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

About 57233

57233 is a rural zip code in Erwin, South Dakota (Kingsbury County), covering 37 sq mi of land. About 350 people live here, or 10 per square mile. The median resident is 15.4 years old, compared with 38.9 nationally. With so few residents, the Census figures below are rough estimates with wide margins of error.

The median household earns $82,917 a year, close to the national median of $80,734. 0% of residents live below the poverty line (U.S.: 12.5%). 86% of occupied homes are lived in by their owners.

5% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 22 minutes each way, and 12% of workers work from home. The most common jobs among working residents are in management; construction and repair; and healthcare.

How 57233 compares

Sorted from highest to lowest national percentile

Only about 350 people live here, so these survey estimates have wide margins of error.

Rent-burdened renters100%
99th
WeaknessU.S. 51.1% · SD 39.8%6th of 313 in SD
Residents under 1856.3%
99th
U.S. 22% · SD 24.2%1st of 347 in SD
Housing vacancy19.7%
93rd
U.S. 10.1% · SD 10.5%115th of 344 in SD
Homeownership rate86%
91st
StrengthU.S. 65.2% · SD 68.6%103rd of 344 in SD
Healthcare workers13.7%
91st
U.S. 9.7% · SD 10.5%52nd of 347 in SD
Broadband access96.5%
89th
StrengthU.S. 91% · SD 89.6%27th of 344 in SD
Uninsured rate12.6%
82nd
WeaknessU.S. 8.4% · SD 9%87th of 347 in SD
Median household income$82,917
54th
U.S. $80,734 · SD $75,081113th of 327 in SD
Veterans5.9%
51st
U.S. 6.2% · SD 7.9%205th of 347 in SD
Median earnings per worker$46,648
45th
U.S. $49,666 · SD $46,539152nd of 345 in SD
Work from home11.6%
44th
U.S. 15.1% · SD 9.7%144th of 347 in SD
Self-employed workers8.4%
38th
U.S. 10% · SD 12.1%295th of 347 in SD
Average commute22 min
23rd
U.S. 26.4 min · SD 17.8 min123rd of 330 in SD
Government workers7.4%
5th
U.S. 14.5% · SD 15.8%297th of 347 in SD
Per capita income$18,478
2nd
WeaknessU.S. $44,673 · SD $40,550320th of 347 in SD
Population350
1st
U.S. 334,922,499 · SD 907,428249th of 347 in SD
Population density10/sq mi
1st
U.S. 95/sq mi · SD 12/sq mi116th of 347 in SD
Median age15.4
1st
U.S. 38.9 · SD 38345th of 347 in SD
Poverty rate0%
1st
StrengthU.S. 12.5% · SD 11.9%337th of 344 in SD
Bachelor's degree or higher5.2%
1st
WeaknessU.S. 35.7% · SD 31.9%333rd of 346 in SD
Unemployment rate0%
1st
StrengthU.S. 5.2% · SD 2.9%299th of 347 in SD
Diversity index0
1st
U.S. 61.4 · SD 35.4337th of 347 in SD
Foreign-born residents0%
1st
U.S. 14.1% · SD 4%294th of 347 in SD
Residents 65 and older4.9%
1st
U.S. 17.2% · SD 18%333rd of 347 in SD
Tech workers0%
1st
U.S. 3.8% · SD 2.3%275th of 347 in SD
Income inequality (Gini)0.298
1st
StrengthU.S. 0.483 · SD 0.449320th of 343 in SD

Measure	57233	Kingsbury	SD	U.S.	National percentile	Rank in SD
Rent-burdened rentersWeakness	100%	47.9%	39.8%	51.1%	99th	6th of 313
Residents under 18	56.3%	25.1%	24.2%	22%	99th	1st of 347
Housing vacancy	19.7%	20.7%	10.5%	10.1%	93rd	115th of 344
Homeownership rateStrength	86%	82.1%	68.6%	65.2%	91st	103rd of 344
Healthcare workers	13.7%	10.5%	10.5%	9.7%	91st	52nd of 347
Broadband accessStrength	96.5%	89.8%	89.6%	91%	89th	27th of 344
Uninsured rateWeakness	12.6%	5.3%	9%	8.4%	82nd	87th of 347
Median household income	$82,917	$74,000	$75,081	$80,734	54th	113th of 327
Veterans	5.9%	6.7%	7.9%	6.2%	51st	205th of 347
Median earnings per worker	$46,648	$45,602	$46,539	$49,666	45th	152nd of 345
Work from home	11.6%	8.5%	9.7%	15.1%	44th	144th of 347
Self-employed workers	8.4%	18%	12.1%	10%	38th	295th of 347
Average commute	22 min	20.8 min	17.8 min	26.4 min	23rd	123rd of 330
Government workers	7.4%	12.1%	15.8%	14.5%	5th	297th of 347
Per capita incomeWeakness	$18,478	$37,027	$40,550	$44,673	2nd	320th of 347
Population	350	5,244	907,428	334,922,499	1st	249th of 347
Population density	10/sq mi	6/sq mi	12/sq mi	95/sq mi	1st	116th of 347
Median age	15.4	42.1	38	38.9	1st	345th of 347
Poverty rateStrength	0%	10.6%	11.9%	12.5%	1st	337th of 344
Bachelor's degree or higherWeakness	5.2%	23.1%	31.9%	35.7%	1st	333rd of 346
Unemployment rateStrength	0%	1%	2.9%	5.2%	1st	299th of 347
Diversity index	0	16.4	35.4	61.4	1st	337th of 347
Foreign-born residents	0%	1%	4%	14.1%	1st	294th of 347
Residents 65 and older	4.9%	23.1%	18%	17.2%	1st	333rd of 347
Tech workers	0%	0.7%	2.3%	3.8%	1st	275th of 347
Income inequality (Gini)Strength	0.298	0.397	0.449	0.483	1st	320th of 343

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

13%

Under 5

44%

5–17

11%

18–24

10%

25–34

11%

35–44

45–54

55–64

65–74

75+

Median age

15.4

Under 18

56.3%

65 and over

4.9%

Race and ethnicity

White100%
Black0%
Hispanic0%
Asian0%
Native American0%
Pacific Islander0%
Other0%
Multiracial0%

Diversity index

U.S. 61.4

Foreign-born

U.S. 14.1%

Born in state

46.6%

Language spoken at home (households)

English only

100%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 57
Average household size: 6.1
Family households: 78.9%
Married couples: 75.4%
Living alone: 19.3%
Veterans (of adults): 5.9%
Male / female: 63% / 37%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

35%

$75–100k

21%

$100–150k

12%

$150–200k

$200k+

21%

Median household income

57233

$82,917

Kingsbury Co.

$74,000

South Dakota

$75,081

United States

$80,734

Per capita income

$18,478

U.S. $44,673

Poverty rate

U.S. 12.5%

Households earning $150K+

21.1%

U.S. 23%

Income inequality (Gini)

0.298

U.S. 0.483

Housing

Median home value

57233

—

Kingsbury Co.

$169,500

South Dakota

$257,400

United States

$332,700

Median gross rent

57233

—

Kingsbury Co.

$685

South Dakota

$946

United States

$1,413

Types of housing

Single-family

97%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 71
Owner-occupied: 86%
Vacant: 19.7%
Median year built: 1939 or earlier
Median rooms: 7.9
Renters paying 30%+ of income: 100%
Renters paying 50%+ of income: 0%
Home value to income: —

Work and commute

How people get to work

Drove alone

81%

Carpooled

Transit

Walked

Bicycle

Worked from home

12%

Other

Commute time (one way)

<10 min

10–19

55%

20–29

26%

30–44

45–59

12%

60+

Average commute

22 min

U.S. 26.4 min

Unemployment

U.S. 5.2%

In labor force

56.9%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

47%

Construction and repair

24%

Healthcare

14%

Office and admin

Transportation and moving

Cleaning and personal care

Farming, fishing and forestry

Business and finance

Computer and math

Engineering and science

Education

Legal and social services

Arts, media and sports

Police and fire

Food service

Sales

Production

Industries

Construction

52%

Agriculture and mining

28%

Health care and social assistance

14%

Finance, insurance and real estate

Restaurants and hotels

Arts and recreation

Education

Retail

Manufacturing

Professional and technical services

Transportation, warehousing and utilities

Public administration

Admin, support and management

Other services

Wholesale

Information

Median earnings per worker

$46,648

U.S. $49,666

Self-employed

8.4%

U.S. 10%

Government workers

7.4%

U.S. 14.5%

Nonprofit workers

3.2%

U.S. 8.8%

Median earnings by type of work

Type of work	57233	U.S.
Management, business, science and arts	$47,443	$74,888
Service	$10,000	$26,804
Sales and office	—	$40,476
Construction and maintenance	$39,615	$49,199
Production and transportation	—	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

58%

Some college

19%

Associate's

18%

Bachelor's

Graduate

High school graduate or higher: 100%
Bachelor's degree or higher: 5.2%
Graduate or professional degree: 1.7%
Households with broadband: 96.5%
Cable, fiber or DSL: 40.4%
No internet access: 3.5%
Without health insurance: 12.6%
Limited-English households: 0%

Geography

City (USPS): Erwin
State: South Dakota
County: Kingsbury County
Center point: 44.5099° N, 97.3993° W
Land area: 37 sq mi
Water area: under 0.1 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Erwin1% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 57233

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
57221	Bryant, SD	7.1 mi	1,158	$73,988	$227,100
57249	Lake Preston, SD	8.9 mi	1,023	$63,182	$193,300
57214	Badger, SD	10 mi	162	$65,000	$70,000
57248	Lake Norden, SD	12 mi	1,295	$96,364	$293,200
57231	De Smet, SD	13 mi	1,724	$78,646	$212,200
57212	Arlington, SD	16 mi	1,819	$93,750	$238,100
57241	Hayti, SD	16 mi	936	$85,833	$123,000
57278	Willow Lake, SD	17 mi	1,011	$70,208	$220,400
57242	Hazel, SD	18 mi	320	$113,958	$177,100
57271	Vienna, SD	19 mi	246	$85,524	$307,800
57051	Oldham, SD	20 mi	163	$56,250	$112,500
57353	Iroquois, SD	24 mi	812	$75,625	$139,300

Questions about 57233

What city is zip code 57233?

57233 is assigned to Erwin, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 57233 in?

57233 is in Kingsbury County, South Dakota.

What is the population of 57233?

About 350 people live in 57233, according to the Census Bureau's American Community Survey.

What time zone is 57233 in?

57233 is in Central Time.

What is the median household income in 57233?

The median household income in 57233 is $82,917.

What zip codes are near 57233?

The closest zip codes to 57233 are 57221, 57249, 57214, 57248, 57231.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 57233, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.