Zip code 57631: Glenham, South Dakota

Q: What city is zip code 57631?

57631 is assigned to Glenham, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 57631 in?

57631 is mostly in Walworth County, but it extends into 1 other county.

Q: What is the population of 57631?

About 364 people live in 57631, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 57631?

The median household income in 57631 is $56,827.

Q: What zip codes are near 57631?

The closest zip codes to 57631 are 57646, 57658, 57472, 57601, 57632.

Residential delivery areaWalworth CountyCentral Time

Population

364

Small sample: rough estimates

Median household income

$57K

U.S. $81K

Median home value

$163K

U.S. $333K

Median rent

—

U.S. $1,413

Median age

60.7

U.S. 38.9

Land area

130 sq mi

3 people/sq mi

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

About 57631

57631 is a rural zip code in Glenham, South Dakota (Walworth County), covering 130 sq mi of land. About 364 people live here, or 3 per square mile. The median resident is 60.7 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 $56,827 a year, 30% below the national median of $80,734. 0.5% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $162,500, or 2.9 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 90% of occupied homes are lived in by their owners.

22% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 15 minutes each way, and 9% of workers work from home. The most common jobs among working residents are in healthcare; farming, fishing and forestry; and transportation and moving goods. 21% of them are self-employed (U.S.: 10%).

How 57631 compares

Sorted from highest to lowest national percentile

Only about 364 people live here, so these survey estimates have wide margins of error.

Median age60.7
99th
U.S. 38.9 · SD 3815th of 347 in SD
Unemployment rate21.6%
99th
WeaknessU.S. 5.2% · SD 2.9%20th of 347 in SD
Residents 65 and older40.4%
99th
U.S. 17.2% · SD 18%14th of 347 in SD
Healthcare workers20.6%
99th
U.S. 9.7% · SD 10.5%10th of 347 in SD
Housing vacancy30.1%
98th
U.S. 10.1% · SD 10.5%42nd of 344 in SD
Self-employed workers20.6%
98th
U.S. 10% · SD 12.1%144th of 347 in SD
Homeownership rate90.3%
96th
StrengthU.S. 65.2% · SD 68.6%57th of 344 in SD
Rent-burdened renters66.7%
95th
WeaknessU.S. 51.1% · SD 39.8%26th of 313 in SD
Uninsured rate14.3%
87th
WeaknessU.S. 8.4% · SD 9%70th of 347 in SD
Government workers18.3%
78th
U.S. 14.5% · SD 15.8%129th of 347 in SD
Income inequality (Gini)0.472
77th
U.S. 0.483 · SD 0.44969th of 343 in SD
Per capita income$52,384
76th
U.S. $44,673 · SD $40,55036th of 347 in SD
Veterans4.5%
32nd
U.S. 6.2% · SD 7.9%263rd of 347 in SD
Work from home8.6%
26th
U.S. 15.1% · SD 9.7%201st of 347 in SD
Bachelor's degree or higher21.6%
25th
U.S. 35.7% · SD 31.9%215th of 346 in SD
Median household income$56,827
16th
WeaknessU.S. $80,734 · SD $75,081277th of 327 in SD
Broadband access85.5%
14th
WeaknessU.S. 91% · SD 89.6%221st of 344 in SD
Median home value$162,500
12th
U.S. $332,700 · SD $257,400172nd of 302 in SD
Diversity index18.4
11th
U.S. 61.4 · SD 35.4165th of 347 in SD
Median earnings per worker$35,795
10th
WeaknessU.S. $49,666 · SD $46,539295th of 345 in SD
Foreign-born residents0.8%
5th
U.S. 14.1% · SD 4%172nd of 347 in SD
Population364
1st
U.S. 334,922,499 · SD 907,428243rd of 347 in SD
Population density3/sq mi
1st
U.S. 95/sq mi · SD 12/sq mi243rd of 347 in SD
Poverty rate0.5%
1st
StrengthU.S. 12.5% · SD 11.9%326th of 344 in SD
Average commute15 min
1st
StrengthU.S. 26.4 min · SD 17.8 min261st of 330 in SD
Residents under 187.7%
1st
U.S. 22% · SD 24.2%327th of 347 in SD
Tech workers0%
1st
U.S. 3.8% · SD 2.3%342nd of 347 in SD

Measure	57631	Walworth	SD	U.S.	National percentile	Rank in SD
Median age	60.7	41.7	38	38.9	99th	15th of 347
Unemployment rateWeakness	21.6%	3.5%	2.9%	5.2%	99th	20th of 347
Residents 65 and older	40.4%	23%	18%	17.2%	99th	14th of 347
Healthcare workers	20.6%	10.2%	10.5%	9.7%	99th	10th of 347
Housing vacancy	30.1%	17.6%	10.5%	10.1%	98th	42nd of 344
Self-employed workers	20.6%	21.7%	12.1%	10%	98th	144th of 347
Homeownership rateStrength	90.3%	76.2%	68.6%	65.2%	96th	57th of 344
Rent-burdened rentersWeakness	66.7%	40.8%	39.8%	51.1%	95th	26th of 313
Uninsured rateWeakness	14.3%	10.6%	9%	8.4%	87th	70th of 347
Government workers	18.3%	18%	15.8%	14.5%	78th	129th of 347
Income inequality (Gini)	0.472	0.449	0.449	0.483	77th	69th of 343
Per capita income	$52,384	$38,408	$40,550	$44,673	76th	36th of 347
Veterans	4.5%	8.1%	7.9%	6.2%	32nd	263rd of 347
Work from home	8.6%	6%	9.7%	15.1%	26th	201st of 347
Bachelor's degree or higher	21.6%	29.6%	31.9%	35.7%	25th	215th of 346
Median household incomeWeakness	$56,827	$65,026	$75,081	$80,734	16th	277th of 327
Broadband accessWeakness	85.5%	90.1%	89.6%	91%	14th	221st of 344
Median home value	$162,500	$136,600	$257,400	$332,700	12th	172nd of 302
Diversity index	18.4	36.9	35.4	61.4	11th	165th of 347
Median earnings per workerWeakness	$35,795	$51,272	$46,539	$49,666	10th	295th of 345
Foreign-born residents	0.8%	0.4%	4%	14.1%	5th	172nd of 347
Population	364	5,271	907,428	334,922,499	1st	243rd of 347
Population density	3/sq mi	8/sq mi	12/sq mi	95/sq mi	1st	243rd of 347
Poverty rateStrength	0.5%	14.9%	11.9%	12.5%	1st	326th of 344
Average commuteStrength	15 min	16.7 min	17.8 min	26.4 min	1st	261st of 330
Residents under 18	7.7%	23.7%	24.2%	22%	1st	327th of 347
Tech workers	0%	0%	2.3%	3.8%	1st	342nd 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

Under 5

5–17

17%

18–24

25–34

35–44

13%

45–54

13%

55–64

33%

65–74

75+

Median age

60.7

Under 18

7.7%

65 and over

40.4%

Race and ethnicity

White90%
Black0%
Hispanic4%
Asian0%
Native American0%
Pacific Islander0%
Other1%
Multiracial5%

Diversity index

18.4

U.S. 61.4

Foreign-born

0.8%

U.S. 14.1%

Born in state

74.2%

Language spoken at home (households)

English only

100%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 207
Average household size: 1.8
Family households: 67.6%
Married couples: 62.3%
Living alone: 32.4%
Veterans (of adults): 4.5%
Male / female: 46% / 54%

Income and poverty

Household income distribution

<$25k

$25–50k

23%

$50–75k

31%

$75–100k

13%

$100–150k

$150–200k

$200k+

14%

Median household income

57631

$56,827

Walworth Co.

$65,026

South Dakota

$75,081

United States

$80,734

Per capita income

$52,384

U.S. $44,673

Poverty rate

0.5%

U.S. 12.5%

Households earning $150K+

18.8%

U.S. 23%

Income inequality (Gini)

0.472

U.S. 0.483

Housing

Median home value

57631

$162,500

Walworth Co.

$136,600

South Dakota

$257,400

United States

$332,700

Median gross rent

57631

—

Walworth Co.

$926

South Dakota

$946

United States

$1,413

Types of housing

Single-family

65%

2–4 units

0.3%

5–19 units

20+ units

Mobile home

35%

Boat, RV, van

Housing units: 296
Owner-occupied: 90.3%
Vacant: 30.1%
Median year built: 1978
Median rooms: 5.7
Renters paying 30%+ of income: 66.7%
Renters paying 50%+ of income: 0%
Home value to income: 2.9× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

84%

Carpooled

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

32%

10–19

44%

20–29

10%

30–44

14%

45–59

60+

0.9%

Average commute

15 min

U.S. 26.4 min

Unemployment

21.6%

U.S. 5.2%

In labor force

48.8%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Healthcare

21%

Farming, fishing and forestry

19%

Transportation and moving

12%

Education

Cleaning and personal care

Office and admin

Food service

Construction and repair

Sales

Management

Production

Legal and social services

Police and fire

0.8%

Business and finance

Computer and math

Engineering and science

Arts, media and sports

Industries

Agriculture and mining

21%

Health care and social assistance

15%

Education

15%

Retail

Transportation, warehousing and utilities

Wholesale

Construction

Professional and technical services

Restaurants and hotels

Public administration

Other services

Manufacturing

Finance, insurance and real estate

Admin, support and management

Information

Arts and recreation

Median earnings per worker

$35,795

U.S. $49,666

Self-employed

20.6%

U.S. 10%

Government workers

18.3%

U.S. 14.5%

Nonprofit workers

15.3%

U.S. 8.8%

Median earnings by type of work

Type of work	57631	U.S.
Management, business, science and arts	$55,714	$74,888
Service	$22,750	$26,804
Sales and office	$21,875	$40,476
Construction and maintenance	$31,650	$49,199
Production and transportation	$62,750	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

35%

Some college

27%

Associate's

13%

Bachelor's

Graduate

14%

High school graduate or higher: 97.1%
Bachelor's degree or higher: 21.6%
Graduate or professional degree: 14.3%
Households with broadband: 85.5%
Cable, fiber or DSL: 63.3%
No internet access: 13.5%
Without health insurance: 14.3%
Limited-English households: 0%

Geography

City (USPS): Glenham
State: South Dakota
County: Walworth County
Center point: 45.5891° N, 100.2961° W
Land area: 130 sq mi
Water area: 20 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

57631 spans 2 counties

Walworth County52% of land
Campbell County48% of land

Zip codes near 57631

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
57646	Mound City, SD	13 mi	272	$101,406	$113,300
57658	Wakpala, SD	14 mi	319	$23,000	$85,000
57472	Selby, SD	14 mi	1,165	$61,708	$120,200
57601	Mobridge, SD	18 mi	3,422	$66,003	$154,600
57632	Herreid, SD	21 mi	757	$81,719	$108,800
57452	Java, SD	21 mi	136	$53,571	$80,700
57420	Akaska, SD	23 mi	260	$40,469	$79,000
57648	Pollock, SD	24 mi	465	$61,354	$99,200
57642	Mc Laughlin, SD	25 mi	1,969	$58,750	$70,000
57657	Trail City, SD	25 mi	247	—	$57,100
57639	Little Eagle, SD	25 mi	290	$21,250	—
57428	Bowdle, SD	32 mi	567	$64,375	$143,800

Questions about 57631

What city is zip code 57631?

57631 is assigned to Glenham, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 57631 in?

57631 is mostly in Walworth County, but it extends into 1 other county.

What is the population of 57631?

About 364 people live in 57631, according to the Census Bureau's American Community Survey.

What time zone is 57631 in?

57631 is in Central Time.

What is the median household income in 57631?

The median household income in 57631 is $56,827.

What zip codes are near 57631?

The closest zip codes to 57631 are 57646, 57658, 57472, 57601, 57632.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 57631, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.