Zip code 57551: Martin, South Dakota

Q: What city is zip code 57551?

57551 is assigned to Martin, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 57551 in?

57551 is in Bennett County, South Dakota.

Q: What is the population of 57551?

About 2,084 people live in 57551, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 57551?

The median household income in 57551 is $70,096.

Q: What zip codes are near 57551?

The closest zip codes to 57551 are 57714, 57574, 57577, 57547, 57716.

Residential delivery areaBennett CountyMountain Time

Population

2,084

Median household income

$70K

U.S. $81K

Median home value

$162K

U.S. $333K

Median rent

$613/mo

U.S. $1,413

Median age

U.S. 38.9

Land area

753 sq mi

3 people/sq mi

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

About 57551

57551 is a rural zip code in Martin, South Dakota (Bennett County), covering 753 sq mi of land. About 2,084 people live here, or 3 per square mile. The median resident is 36 years old, compared with 38.9 nationally.

The median household earns $70,096 a year, 13% below the national median of $80,734. 20.5% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $161,900, or 2.3 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 65% of occupied homes are lived in by their owners, and renters pay a median of $613 a month.

26% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 12.5 minutes each way, and 8% of workers work from home. The most common jobs among working residents are in management; healthcare; and construction and repair.

How 57551 compares

Sorted from highest to lowest national percentile

Uninsured rate23%
97th
WeaknessU.S. 8.4% · SD 9%35th of 347 in SD
Residents under 1831.3%
97th
U.S. 22% · SD 24.2%76th of 347 in SD
Housing vacancy20%
93rd
U.S. 10.1% · SD 10.5%113th of 344 in SD
Government workers22.7%
91st
U.S. 14.5% · SD 15.8%87th of 347 in SD
Self-employed workers14.7%
89th
U.S. 10% · SD 12.1%219th of 347 in SD
Veterans9.2%
86th
U.S. 6.2% · SD 7.9%88th of 347 in SD
Healthcare workers12.6%
86th
U.S. 9.7% · SD 10.5%75th of 347 in SD
Poverty rate20.5%
85th
WeaknessU.S. 12.5% · SD 11.9%57th of 344 in SD
Unemployment rate7.1%
80th
WeaknessU.S. 5.2% · SD 2.9%42nd of 347 in SD
Diversity index59.2
70th
U.S. 61.4 · SD 35.47th of 347 in SD
Residents 65 and older18.5%
64th
U.S. 17.2% · SD 18%202nd of 347 in SD
Homeownership rate64.9%
41st
U.S. 65.2% · SD 68.6%279th of 344 in SD
Median household income$70,096
36th
U.S. $80,734 · SD $75,081199th of 327 in SD
Bachelor's degree or higher25.6%
35th
U.S. 35.7% · SD 31.9%158th of 346 in SD
Median age36
27th
U.S. 38.9 · SD 38255th of 347 in SD
Income inequality (Gini)0.403
23rd
U.S. 0.483 · SD 0.449189th of 343 in SD
Work from home7.5%
19th
U.S. 15.1% · SD 9.7%222nd of 347 in SD
Foreign-born residents2.6%
16th
U.S. 14.1% · SD 4%75th of 347 in SD
Median earnings per worker$37,042
14th
WeaknessU.S. $49,666 · SD $46,539285th of 345 in SD
Median home value$161,900
12th
U.S. $332,700 · SD $257,400173rd of 302 in SD
Per capita income$25,744
9th
WeaknessU.S. $44,673 · SD $40,550294th of 347 in SD
Rent-burdened renters32.7%
7th
StrengthU.S. 51.1% · SD 39.8%138th of 313 in SD
Tech workers0.6%
7th
U.S. 3.8% · SD 2.3%141st of 347 in SD
Population2,084
3rd
U.S. 334,922,499 · SD 907,42866th of 347 in SD
Broadband access76%
2nd
WeaknessU.S. 91% · SD 89.6%306th of 344 in SD
Population density3/sq mi
1st
U.S. 95/sq mi · SD 12/sq mi240th of 347 in SD
Median gross rent$613
1st
U.S. $1,413 · SD $946192nd of 243 in SD
Average commute12.5 min
1st
StrengthU.S. 26.4 min · SD 17.8 min302nd of 330 in SD

Measure	57551	Bennett	SD	U.S.	National percentile	Rank in SD
Uninsured rateWeakness	23%	27.7%	9%	8.4%	97th	35th of 347
Residents under 18	31.3%	35.1%	24.2%	22%	97th	76th of 347
Housing vacancy	20%	20.1%	10.5%	10.1%	93rd	113th of 344
Government workers	22.7%	27.5%	15.8%	14.5%	91st	87th of 347
Self-employed workers	14.7%	15.3%	12.1%	10%	89th	219th of 347
Veterans	9.2%	7.2%	7.9%	6.2%	86th	88th of 347
Healthcare workers	12.6%	10.9%	10.5%	9.7%	86th	75th of 347
Poverty rateWeakness	20.5%	29.9%	11.9%	12.5%	85th	57th of 344
Unemployment rateWeakness	7.1%	10%	2.9%	5.2%	80th	42nd of 347
Diversity index	59.2	56.5	35.4	61.4	70th	7th of 347
Residents 65 and older	18.5%	15.3%	18%	17.2%	64th	202nd of 347
Homeownership rate	64.9%	61.2%	68.6%	65.2%	41st	279th of 344
Median household income	$70,096	$53,750	$75,081	$80,734	36th	199th of 327
Bachelor's degree or higher	25.6%	18.3%	31.9%	35.7%	35th	158th of 346
Median age	36	27.4	38	38.9	27th	255th of 347
Income inequality (Gini)	0.403	0.444	0.449	0.483	23rd	189th of 343
Work from home	7.5%	8%	9.7%	15.1%	19th	222nd of 347
Foreign-born residents	2.6%	1.6%	4%	14.1%	16th	75th of 347
Median earnings per workerWeakness	$37,042	$36,481	$46,539	$49,666	14th	285th of 345
Median home value	$161,900	$156,400	$257,400	$332,700	12th	173rd of 302
Per capita incomeWeakness	$25,744	$18,895	$40,550	$44,673	9th	294th of 347
Rent-burdened rentersStrength	32.7%	28.8%	39.8%	51.1%	7th	138th of 313
Tech workers	0.6%	0.5%	2.3%	3.8%	7th	141st of 347
Population	2,084	3,345	907,428	334,922,499	3rd	66th of 347
Broadband accessWeakness	76%	65.2%	89.6%	91%	2nd	306th of 344
Population density	3/sq mi	3/sq mi	12/sq mi	95/sq mi	1st	240th of 347
Median gross rent	$613	$617	$946	$1,413	1st	192nd of 243
Average commuteStrength	12.5 min	12 min	17.8 min	26.4 min	1st	302nd of 330

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

Under 5

23%

5–17

11%

18–24

25–34

14%

35–44

45–54

10%

55–64

10%

65–74

75+

Median age

Under 18

31.3%

65 and over

18.5%

Race and ethnicity

White50%
Black0.3%
Hispanic3%
Asian2%
Native American40%
Pacific Islander0%
Other0%
Multiracial5%

Diversity index

59.2

U.S. 61.4

Foreign-born

2.6%

U.S. 14.1%

Born in state

64.6%

Language spoken at home (households)

English only

89%

Spanish

0.2%

Other Indo-European

Asian / Pacific

Other

Households

Households: 666
Average household size: 3.1
Family households: 75.2%
Married couples: 49.7%
Living alone: 21%
Veterans (of adults): 9.2%
Male / female: 48% / 52%

Income and poverty

Household income distribution

<$25k

22%

$25–50k

17%

$50–75k

21%

$75–100k

14%

$100–150k

21%

$150–200k

$200k+

Median household income

57551

$70,096

Bennett Co.

$53,750

South Dakota

$75,081

United States

$80,734

Per capita income

$25,744

U.S. $44,673

Poverty rate

20.5%

U.S. 12.5%

Households earning $150K+

U.S. 23%

Income inequality (Gini)

0.403

U.S. 0.483

Housing

Median home value

57551

$161,900

Bennett Co.

$156,400

South Dakota

$257,400

United States

$332,700

Median gross rent

57551

$613

Bennett Co.

$617

South Dakota

$946

United States

$1,413

Types of housing

Single-family

82%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 833
Owner-occupied: 64.9%
Vacant: 20%
Median year built: 1967
Median rooms: 5.5
Renters paying 30%+ of income: 32.7%
Renters paying 50%+ of income: 21.3%
Home value to income: 2.3× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

79%

Carpooled

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

70%

10–19

20–29

30–44

45–59

60+

Average commute

12.5 min

U.S. 26.4 min

Unemployment

7.1%

U.S. 5.2%

In labor force

58.2%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

21%

Healthcare

13%

Construction and repair

10%

Education

10%

Sales

10%

Cleaning and personal care

Transportation and moving

Food service

Farming, fishing and forestry

Office and admin

Business and finance

Legal and social services

Production

Computer and math

0.6%

Arts, media and sports

0.6%

Engineering and science

Police and fire

Industries

Agriculture and mining

17%

Health care and social assistance

16%

Retail

16%

Education

14%

Restaurants and hotels

Construction

Public administration

Transportation, warehousing and utilities

Admin, support and management

Finance, insurance and real estate

Other services

Arts and recreation

Wholesale

0.6%

Information

0.6%

Manufacturing

0.5%

Professional and technical services

0.4%

Median earnings per worker

$37,042

U.S. $49,666

Self-employed

14.7%

U.S. 10%

Government workers

22.7%

U.S. 14.5%

Nonprofit workers

12.4%

U.S. 8.8%

Median earnings by type of work

Type of work	57551	U.S.
Management, business, science and arts	$62,679	$74,888
Service	$15,000	$26,804
Sales and office	$36,394	$40,476
Construction and maintenance	$33,790	$49,199
Production and transportation	$34,500	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

35%

Some college

22%

Associate's

11%

Bachelor's

21%

Graduate

High school graduate or higher: 93.2%
Bachelor's degree or higher: 25.6%
Graduate or professional degree: 4.9%
Households with broadband: 76%
Cable, fiber or DSL: 64.3%
No internet access: 17.4%
Without health insurance: 23%
Limited-English households: 1.5%

Geography

City (USPS): Martin
State: South Dakota
County: Bennett County
Center point: 43.1920° N, 101.7083° W
Land area: 753 sq mi
Water area: 4.6 sq mi
Time zone: Mountain Time (UTC-7, UTC-6 in summer)
Zip type: Residential delivery area

Zip codes near 57551

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
57714	Allen, SD	14 mi	1,144	—	$111,600
57574	Tuthill, SD	17 mi	73	under $2,500	$261,900
57577	Wanblee, SD	23 mi	940	$20,625	—
57547	Long Valley, SD	25 mi	383	$78,523	$115,700
57716	Batesland, SD	26 mi	201	—	—
69218	Merriman, NE	29 mi	429	$78,672	$106,300
57752	Kyle, SD	30 mi	1,553	$82,604	—
57750	Interior, SD	30 mi	365	—	$175,000
57560	Norris, SD	30 mi	391	—	—
57572	Saint Francis, SD	31 mi	1,317	$40,417	$37,800
69211	Cody, NE	32 mi	201	$74,688	$115,000
57566	Parmelee, SD	32 mi	1,184	$14,176	$12,200

Zip codes like 57551 elsewhere

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

Questions about 57551

What city is zip code 57551?

57551 is assigned to Martin, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 57551 in?

57551 is in Bennett County, South Dakota.

What is the population of 57551?

About 2,084 people live in 57551, according to the Census Bureau's American Community Survey.

What time zone is 57551 in?

57551 is in Mountain Time.

What is the median household income in 57551?

The median household income in 57551 is $70,096.

What zip codes are near 57551?

The closest zip codes to 57551 are 57714, 57574, 57577, 57547, 57716.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 57551, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.