Zip code 57266: Summit, South Dakota

Q: What city is zip code 57266?

57266 is assigned to Summit, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 57266 in?

57266 is mostly in Grant County, but it extends into 1 other county.

Q: What is the population of 57266?

About 626 people live in 57266, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 57266?

The median household income in 57266 is $72,500.

Q: What zip codes are near 57266?

The closest zip codes to 57266 are 57256, 57251, 57273, 57263, 57279.

Residential delivery areaGrant CountyCentral Time

Population

626

Median household income

$73K

U.S. $81K

Median home value

$163K

U.S. $333K

Median rent

$775/mo

U.S. $1,413

Median age

33.7

U.S. 38.9

Land area

127 sq mi

5 people/sq mi

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

About 57266

57266 is a rural zip code in Summit, South Dakota (Grant County), covering 127 sq mi of land. About 626 people live here, or 5 per square mile. The median resident is 33.7 years old, compared with 38.9 nationally.

The median household earns $72,500 a year, close to the national median of $80,734. 17.9% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $162,500, or 2.2 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 74% of occupied homes are lived in by their owners, and renters pay a median of $775 a month.

14% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 25.3 minutes each way, and 13% of workers work from home. The most common jobs among working residents are in management; transportation and moving goods; and education. 20% of them are self-employed (U.S.: 10%).

How 57266 compares

Sorted from highest to lowest national percentile

Residents under 1834.2%
99th
U.S. 22% · SD 24.2%56th of 347 in SD
Self-employed workers19.5%
97th
U.S. 10% · SD 12.1%155th of 347 in SD
Housing vacancy18.9%
92nd
U.S. 10.1% · SD 10.5%126th of 344 in SD
Government workers22.5%
91st
U.S. 14.5% · SD 15.8%90th of 347 in SD
Veterans8.7%
83rd
U.S. 6.2% · SD 7.9%107th of 347 in SD
Uninsured rate12.1%
80th
WeaknessU.S. 8.4% · SD 9%91st of 347 in SD
Poverty rate17.9%
79th
U.S. 12.5% · SD 11.9%71st of 344 in SD
Homeownership rate74.3%
65th
U.S. 65.2% · SD 68.6%228th of 344 in SD
Work from home12.9%
51st
U.S. 15.1% · SD 9.7%129th of 347 in SD
Average commute25.3 min
45th
U.S. 26.4 min · SD 17.8 min73rd of 330 in SD
Residents 65 and older15.7%
43rd
U.S. 17.2% · SD 18%244th of 347 in SD
Median household income$72,500
39th
U.S. $80,734 · SD $75,081181st of 327 in SD
Diversity index42.3
39th
U.S. 61.4 · SD 35.440th of 347 in SD
Median earnings per worker$40,000
21st
U.S. $49,666 · SD $46,539260th of 345 in SD
Healthcare workers7.4%
20th
U.S. 9.7% · SD 10.5%177th of 347 in SD
Tech workers1.3%
18th
U.S. 3.8% · SD 2.3%101st of 347 in SD
Unemployment rate2.9%
15th
StrengthU.S. 5.2% · SD 2.9%107th of 347 in SD
Broadband access85.9%
15th
WeaknessU.S. 91% · SD 89.6%213th of 344 in SD
Median age33.7
14th
U.S. 38.9 · SD 38276th of 347 in SD
Per capita income$27,829
13th
WeaknessU.S. $44,673 · SD $40,550289th of 347 in SD
Median home value$162,500
12th
U.S. $332,700 · SD $257,400171st of 302 in SD
Income inequality (Gini)0.379
9th
StrengthU.S. 0.483 · SD 0.449231st of 343 in SD
Bachelor's degree or higher14.4%
8th
WeaknessU.S. 35.7% · SD 31.9%294th of 346 in SD
Median gross rent$775
6th
U.S. $1,413 · SD $946113th of 243 in SD
Foreign-born residents1.1%
6th
U.S. 14.1% · SD 4%150th of 347 in SD
Rent-burdened renters28.2%
4th
StrengthU.S. 51.1% · SD 39.8%172nd of 313 in SD
Population626
1st
U.S. 334,922,499 · SD 907,428184th of 347 in SD
Population density5/sq mi
1st
U.S. 95/sq mi · SD 12/sq mi181st of 347 in SD

Measure	57266	Grant	SD	U.S.	National percentile	Rank in SD
Residents under 18	34.2%	22.2%	24.2%	22%	99th	56th of 347
Self-employed workers	19.5%	11.9%	12.1%	10%	97th	155th of 347
Housing vacancy	18.9%	12.4%	10.5%	10.1%	92nd	126th of 344
Government workers	22.5%	9.9%	15.8%	14.5%	91st	90th of 347
Veterans	8.7%	7.5%	7.9%	6.2%	83rd	107th of 347
Uninsured rateWeakness	12.1%	7.8%	9%	8.4%	80th	91st of 347
Poverty rate	17.9%	11.6%	11.9%	12.5%	79th	71st of 344
Homeownership rate	74.3%	75.6%	68.6%	65.2%	65th	228th of 344
Work from home	12.9%	11%	9.7%	15.1%	51st	129th of 347
Average commute	25.3 min	13.7 min	17.8 min	26.4 min	45th	73rd of 330
Residents 65 and older	15.7%	23.4%	18%	17.2%	43rd	244th of 347
Median household income	$72,500	$75,028	$75,081	$80,734	39th	181st of 327
Diversity index	42.3	19.7	35.4	61.4	39th	40th of 347
Median earnings per worker	$40,000	$44,961	$46,539	$49,666	21st	260th of 345
Healthcare workers	7.4%	7.4%	10.5%	9.7%	20th	177th of 347
Tech workers	1.3%	2.8%	2.3%	3.8%	18th	101st of 347
Unemployment rateStrength	2.9%	2.7%	2.9%	5.2%	15th	107th of 347
Broadband accessWeakness	85.9%	84.1%	89.6%	91%	15th	213th of 344
Median age	33.7	44.5	38	38.9	14th	276th of 347
Per capita incomeWeakness	$27,829	$37,694	$40,550	$44,673	13th	289th of 347
Median home value	$162,500	$171,000	$257,400	$332,700	12th	171st of 302
Income inequality (Gini)Strength	0.379	0.424	0.449	0.483	9th	231st of 343
Bachelor's degree or higherWeakness	14.4%	25.3%	31.9%	35.7%	8th	294th of 346
Median gross rent	$775	$763	$946	$1,413	6th	113th of 243
Foreign-born residents	1.1%	6.5%	4%	14.1%	6th	150th of 347
Rent-burdened rentersStrength	28.2%	28.7%	39.8%	51.1%	4th	172nd of 313
Population	626	7,563	907,428	334,922,499	1st	184th of 347
Population density	5/sq mi	11/sq mi	12/sq mi	95/sq mi	1st	181st 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

23%

5–17

18–24

25–34

12%

35–44

12%

45–54

10%

55–64

65–74

75+

Median age

33.7

Under 18

34.2%

65 and over

15.7%

Race and ethnicity

White74%
Black0.3%
Hispanic6%
Asian0.3%
Native American14%
Pacific Islander0%
Other0%
Multiracial5%

Diversity index

42.3

U.S. 61.4

Foreign-born

1.1%

U.S. 14.1%

Born in state

77.2%

Language spoken at home (households)

English only

83%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 206
Average household size: 3
Family households: 64.1%
Married couples: 47.1%
Living alone: 32%
Veterans (of adults): 8.7%
Male / female: 58% / 42%

Income and poverty

Household income distribution

<$25k

12%

$25–50k

23%

$50–75k

17%

$75–100k

12%

$100–150k

23%

$150–200k

10%

$200k+

Median household income

57266

$72,500

Grant Co.

$75,028

South Dakota

$75,081

United States

$80,734

Per capita income

$27,829

U.S. $44,673

Poverty rate

17.9%

U.S. 12.5%

Households earning $150K+

13.6%

U.S. 23%

Income inequality (Gini)

0.379

U.S. 0.483

Housing

Median home value

57266

$162,500

Grant Co.

$171,000

South Dakota

$257,400

United States

$332,700

Median gross rent

57266

$775

Grant Co.

$763

South Dakota

$946

United States

$1,413

Types of housing

Single-family

85%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 254
Owner-occupied: 74.3%
Vacant: 18.9%
Median year built: 1953
Median rooms: 6.6
Renters paying 30%+ of income: 28.2%
Renters paying 50%+ of income: 17.9%
Home value to income: 2.2× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

75%

Carpooled

Transit

Walked

Bicycle

Worked from home

13%

Other

Commute time (one way)

<10 min

32%

10–19

14%

20–29

11%

30–44

36%

45–59

60+

Average commute

25.3 min

U.S. 26.4 min

Unemployment

2.9%

U.S. 5.2%

In labor force

69.1%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

24%

Transportation and moving

12%

Education

11%

Office and admin

11%

Construction and repair

Healthcare

Cleaning and personal care

Sales

Production

Food service

Business and finance

Computer and math

Engineering and science

Farming, fishing and forestry

Police and fire

0.3%

Legal and social services

Arts, media and sports

Industries

Education

15%

Construction

14%

Agriculture and mining

14%

Retail

12%

Manufacturing

10%

Health care and social assistance

Arts and recreation

Restaurants and hotels

Finance, insurance and real estate

Transportation, warehousing and utilities

Other services

Public administration

Admin, support and management

Wholesale

0.7%

Information

0.3%

Professional and technical services

Median earnings per worker

$40,000

U.S. $49,666

Self-employed

19.5%

U.S. 10%

Government workers

22.5%

U.S. 14.5%

Nonprofit workers

U.S. 8.8%

Median earnings by type of work

Type of work	57266	U.S.
Management, business, science and arts	$47,188	$74,888
Service	$31,250	$26,804
Sales and office	$33,750	$40,476
Construction and maintenance	$37,000	$49,199
Production and transportation	$48,750	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

41%

Some college

13%

Associate's

25%

Bachelor's

Graduate

High school graduate or higher: 94.2%
Bachelor's degree or higher: 14.4%
Graduate or professional degree: 5.6%
Households with broadband: 85.9%
Cable, fiber or DSL: 72.8%
No internet access: 12.1%
Without health insurance: 12.1%
Limited-English households: 1.5%

Geography

City (USPS): Summit
State: South Dakota
County: Grant County
Center point: 45.2898° N, 97.0927° W
Land area: 127 sq mi
Water area: 1.5 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

57266 spans 2 counties

Grant County52% of land
Roberts County48% of land

Zip codes near 57266

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
57256	Ortley, SD	5.8 mi	238	$66,500	$225,000
57251	Marvin, SD	7.7 mi	228	$72,292	$75,000
57273	Waubay, SD	9.4 mi	1,165	$48,167	$177,400
57263	South Shore, SD	11 mi	351	$58,214	$112,500
57279	Wilmot, SD	14 mi	899	$71,324	$188,000
57257	Peever, SD	15 mi	637	$55,625	$75,000
57269	Twin Brooks, SD	15 mi	186	$98,333	$410,600
57264	Stockholm, SD	19 mi	191	$79,583	$112,500
57239	Grenville, SD	19 mi	358	$106,389	$377,300
57235	Florence, SD	19 mi	774	$83,462	$231,100
57227	Corona, SD	19 mi	562	$96,500	$192,900
57274	Webster, SD	23 mi	2,621	$68,083	$173,200

Questions about 57266

What city is zip code 57266?

57266 is assigned to Summit, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 57266 in?

57266 is mostly in Grant County, but it extends into 1 other county.

What is the population of 57266?

About 626 people live in 57266, according to the Census Bureau's American Community Survey.

What time zone is 57266 in?

57266 is in Central Time.

What is the median household income in 57266?

The median household income in 57266 is $72,500.

What zip codes are near 57266?

The closest zip codes to 57266 are 57256, 57251, 57273, 57263, 57279.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 57266, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.