Zip code 57521: Belvidere, South Dakota

Q: What city is zip code 57521?

57521 is assigned to Belvidere, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 57521 in?

57521 is mostly in Mellette County, but it extends into 1 other county.

Q: What is the population of 57521?

About 314 people live in 57521, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 57521?

The median household income in 57521 is $57,813.

Q: What zip codes are near 57521?

The closest zip codes to 57521 are 57562, 57543, 57547, 57560, 57579.

Residential delivery areaMellette CountyCentral Time

Population

314

Small sample: rough estimates

Median household income

$58K

U.S. $81K

Median home value

—

U.S. $333K

Median rent

—

U.S. $1,413

Median age

U.S. 38.9

Land area

428 sq mi

1 people/sq mi

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

About 57521

57521 is a rural zip code in Belvidere, South Dakota (Mellette County), covering 428 sq mi of land. About 314 people live here. The median resident is 30 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 $57,813 a year, 28% below the national median of $80,734. 19.5% of residents live below the poverty line (U.S.: 12.5%). 52% of occupied homes are lived in by their owners.

25% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 27.7 minutes each way, and 54% of workers work from home; working from home is more common than any single way of commuting. The most common jobs among working residents are in management; engineering and science; and sales. 33% of them are self-employed (U.S.: 10%).

How 57521 compares

Sorted from highest to lowest national percentile

Only about 314 people live here, so these survey estimates have wide margins of error.

Work from home53.5%
99th
U.S. 15.1% · SD 9.7%6th of 347 in SD
Housing vacancy38.1%
99th
U.S. 10.1% · SD 10.5%20th of 344 in SD
Residents under 1844.3%
99th
U.S. 22% · SD 24.2%13th of 347 in SD
Self-employed workers33.3%
99th
U.S. 10% · SD 12.1%59th of 347 in SD
Income inequality (Gini)0.596
99th
WeaknessU.S. 0.483 · SD 0.4497th of 343 in SD
Uninsured rate20.4%
95th
WeaknessU.S. 8.4% · SD 9%42nd of 347 in SD
Poverty rate19.5%
83rd
WeaknessU.S. 12.5% · SD 11.9%60th of 344 in SD
Average commute27.7 min
61st
U.S. 26.4 min · SD 17.8 min43rd of 330 in SD
Diversity index51.7
55th
U.S. 61.4 · SD 35.421st of 347 in SD
Residents 65 and older17.2%
55th
U.S. 17.2% · SD 18%221st of 347 in SD
Government workers14.1%
53rd
U.S. 14.5% · SD 15.8%191st of 347 in SD
Bachelor's degree or higher25.1%
34th
U.S. 35.7% · SD 31.9%166th of 346 in SD
Homeownership rate52.3%
21st
U.S. 65.2% · SD 68.6%319th of 344 in SD
Median earnings per worker$40,114
21st
U.S. $49,666 · SD $46,539256th of 345 in SD
Veterans3.4%
19th
U.S. 6.2% · SD 7.9%296th of 347 in SD
Median household income$57,813
17th
WeaknessU.S. $80,734 · SD $75,081272nd of 327 in SD
Per capita income$28,092
14th
WeaknessU.S. $44,673 · SD $40,550286th of 347 in SD
Healthcare workers6.1%
9th
U.S. 9.7% · SD 10.5%208th of 347 in SD
Median age30
4th
U.S. 38.9 · SD 38293rd of 347 in SD
Population314
1st
U.S. 334,922,499 · SD 907,428261st of 347 in SD
Population density1/sq mi
1st
U.S. 95/sq mi · SD 12/sq mi328th of 347 in SD
Unemployment rate0%
1st
StrengthU.S. 5.2% · SD 2.9%293rd of 347 in SD
Broadband access67.7%
1st
WeaknessU.S. 91% · SD 89.6%322nd of 344 in SD
Foreign-born residents0%
1st
U.S. 14.1% · SD 4%289th of 347 in SD
Rent-burdened renters0%
1st
StrengthU.S. 51.1% · SD 39.8%290th of 313 in SD
Tech workers0%
1st
U.S. 3.8% · SD 2.3%266th of 347 in SD

Measure	57521	Mellette	SD	U.S.	National percentile	Rank in SD
Work from home	53.5%	13.9%	9.7%	15.1%	99th	6th of 347
Housing vacancy	38.1%	17.7%	10.5%	10.1%	99th	20th of 344
Residents under 18	44.3%	28.7%	24.2%	22%	99th	13th of 347
Self-employed workers	33.3%	28.6%	12.1%	10%	99th	59th of 347
Income inequality (Gini)Weakness	0.596	0.501	0.449	0.483	99th	7th of 343
Uninsured rateWeakness	20.4%	25%	9%	8.4%	95th	42nd of 347
Poverty rateWeakness	19.5%	41.7%	11.9%	12.5%	83rd	60th of 344
Average commute	27.7 min	16.7 min	17.8 min	26.4 min	61st	43rd of 330
Diversity index	51.7	56	35.4	61.4	55th	21st of 347
Residents 65 and older	17.2%	16.4%	18%	17.2%	55th	221st of 347
Government workers	14.1%	28.8%	15.8%	14.5%	53rd	191st of 347
Bachelor's degree or higher	25.1%	19.1%	31.9%	35.7%	34th	166th of 346
Homeownership rate	52.3%	60.4%	68.6%	65.2%	21st	319th of 344
Median earnings per worker	$40,114	$32,500	$46,539	$49,666	21st	256th of 345
Veterans	3.4%	8.6%	7.9%	6.2%	19th	296th of 347
Median household incomeWeakness	$57,813	$54,076	$75,081	$80,734	17th	272nd of 327
Per capita incomeWeakness	$28,092	$25,614	$40,550	$44,673	14th	286th of 347
Healthcare workers	6.1%	15.8%	10.5%	9.7%	9th	208th of 347
Median age	30	37.5	38	38.9	4th	293rd of 347
Population	314	1,943	907,428	334,922,499	1st	261st of 347
Population density	1/sq mi	2/sq mi	12/sq mi	95/sq mi	1st	328th of 347
Unemployment rateStrength	0%	12.5%	2.9%	5.2%	1st	293rd of 347
Broadband accessWeakness	67.7%	74.4%	89.6%	91%	1st	322nd of 344
Foreign-born residents	0%	0%	4%	14.1%	1st	289th of 347
Rent-burdened rentersStrength	0%	26.2%	39.8%	51.1%	1st	290th of 313
Tech workers	0%	0%	2.3%	3.8%	1st	266th 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

17%

Under 5

27%

5–17

18–24

25–34

35–44

18%

45–54

11%

55–64

10%

65–74

75+

Median age

Under 18

44.3%

65 and over

17.2%

Race and ethnicity

White57%
Black0%
Hispanic0%
Asian0%
Native American40%
Pacific Islander0%
Other3%
Multiracial0%

Diversity index

51.7

U.S. 61.4

Foreign-born

U.S. 14.1%

Born in state

90.8%

Language spoken at home (households)

English only

100%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 65
Average household size: 4.8
Family households: 86.2%
Married couples: 70.8%
Living alone: 13.8%
Veterans (of adults): 3.4%
Male / female: 57% / 43%

Income and poverty

Household income distribution

<$25k

25%

$25–50k

12%

$50–75k

35%

$75–100k

$100–150k

$150–200k

$200k+

18%

Median household income

57521

$57,813

Mellette Co.

$54,076

South Dakota

$75,081

United States

$80,734

Per capita income

$28,092

U.S. $44,673

Poverty rate

19.5%

U.S. 12.5%

Households earning $150K+

18.5%

U.S. 23%

Income inequality (Gini)

0.596

U.S. 0.483

Housing

Median home value

57521

—

Mellette Co.

$84,100

South Dakota

$257,400

United States

$332,700

Median gross rent

57521

—

Mellette Co.

$708

South Dakota

$946

United States

$1,413

Types of housing

Single-family

88%

2–4 units

5–19 units

20+ units

Mobile home

12%

Boat, RV, van

Housing units: 105
Owner-occupied: 52.3%
Vacant: 38.1%
Median year built: 1953
Median rooms: 6.3
Renters paying 30%+ of income: 0%
Renters paying 50%+ of income: 0%
Home value to income: —

Work and commute

How people get to work

Drove alone

46%

Carpooled

Transit

Walked

Bicycle

Worked from home

54%

Other

Commute time (one way)

<10 min

24%

10–19

39%

20–29

30–44

24%

45–59

60+

13%

Average commute

27.7 min

U.S. 26.4 min

Unemployment

U.S. 5.2%

In labor force

56.6%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

54%

Engineering and science

11%

Sales

10%

Construction and repair

Farming, fishing and forestry

Healthcare

Office and admin

Business and finance

Computer and math

Education

Legal and social services

Arts, media and sports

Police and fire

Food service

Cleaning and personal care

Production

Transportation and moving

Industries

Agriculture and mining

62%

Retail

18%

Public administration

14%

Health care and social assistance

Education

Manufacturing

Professional and technical services

Construction

Restaurants and hotels

Finance, insurance and real estate

Transportation, warehousing and utilities

Admin, support and management

Other services

Wholesale

Information

Arts and recreation

Median earnings per worker

$40,114

U.S. $49,666

Self-employed

33.3%

U.S. 10%

Government workers

14.1%

U.S. 14.5%

Nonprofit workers

U.S. 8.8%

Median earnings by type of work

Type of work	57521	U.S.
Management, business, science and arts	$41,591	$74,888
Service	—	$26,804
Sales and office	—	$40,476
Construction and maintenance	—	$49,199
Production and transportation	—	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

15%

High school

49%

Some college

Associate's

Bachelor's

18%

Graduate

High school graduate or higher: 84.6%
Bachelor's degree or higher: 25.1%
Graduate or professional degree: 6.9%
Households with broadband: 67.7%
Cable, fiber or DSL: 67.7%
No internet access: 32.3%
Without health insurance: 20.4%
Limited-English households: 0%

Geography

City (USPS): Belvidere
State: South Dakota
County: Mellette County
Center point: 43.7921° N, 101.1828° W
Land area: 428 sq mi
Water area: 2.3 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

57521 spans 2 counties

Mellette County50% of land
Jackson County50% of land

Zip codes near 57521

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
57562	Okaton, SD	13 mi	89	—	under $10,000
57543	Kadoka, SD	17 mi	721	$36,250	$160,400
57547	Long Valley, SD	24 mi	383	$78,523	$115,700
57560	Norris, SD	25 mi	391	—	—
57579	White River, SD	25 mi	1,277	$56,474	$61,000
57559	Murdo, SD	25 mi	735	$66,818	$139,300
57577	Wanblee, SD	30 mi	940	$20,625	—
57552	Midland, SD	33 mi	642	$63,500	$124,700
57566	Parmelee, SD	34 mi	1,184	$14,176	$12,200
57567	Philip, SD	35 mi	1,056	$59,410	$191,500
57570	Rosebud, SD	40 mi	2,071	$51,788	$50,300
57750	Interior, SD	41 mi	365	—	$175,000

Questions about 57521

What city is zip code 57521?

57521 is assigned to Belvidere, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 57521 in?

57521 is mostly in Mellette County, but it extends into 1 other county.

What is the population of 57521?

About 314 people live in 57521, according to the Census Bureau's American Community Survey.

What time zone is 57521 in?

57521 is in Central Time.

What is the median household income in 57521?

The median household income in 57521 is $57,813.

What zip codes are near 57521?

The closest zip codes to 57521 are 57562, 57543, 57547, 57560, 57579.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 57521, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.