57751 Zip Code

April 19, 2024

Zip Code:	57751
City/Town:	Keystone
State:	South Dakota

Population:	844
Per Capita Income:	$20,326
Mean Household Income:	$48,035

Total Housing Units:	375
Median Home Value:	$97,300
Median Year Homes Built:	1974

Land Area:	68.2 sq miles 176.7 sq kilometers
Water Area:	0.0 sq miles 0.1 sq kilometers

Population Information (57751 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Total Population:

844

Male:

426

50.5%

49.2%

Female:

418

49.5%

50.8%

Median Age:

50.6 yrs

37.2 yrs

Under 5 years:

4.4%

6.5%

5 to 9 years:

4.9%

6.6%

10 to 19 years:

9.0%

13.8%

20 to 29 years:

5.7%

13.8%

30 to 39 years:

10.0%

13.0%

40 to 49 years:

111

13.2%

14.2%

50 to 59 years:

198

23.5%

13.6%

60 to 69 years:

146

17.3%

9.4%

70 to 79 years:

8.1%

5.4%

80 years and over:

2.5%

3.7%

Housing Information (57751 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Median home value:

$97,300

$119,600

Median year homes build:

1974

1971

Median real estate taxes:

$1,518 / yr.

$1,334 / yr.

Median rent:

$381 / mo.

$519 / mo.

Total households:

375

Family households:

242

64.5%

66.4%

Nonfamily households:

133

35.5%

33.6%

Households with individuals under 18 years:

22.4%

33.4%

Households with individuals 65 years and over:

105

28.0%

24.9%

Average household size:

2.2

Average family size:

2.7

Total housing units:

556

Occupied housing units:

375

67.4%

88.6%

Vacant housing units:

181

32.6%

11.4%

For rent:

3.4%

3.1%

Rented, not occupied:

0.2%

For sale only:

0.9%

1.4%

Sold, not occupied:

1.6%

0.3%

For seasonal, recreational, or occasional use:

111

20.0%

3.5%

All other vacants:

6.5%

2.8%

Homeowner vacancy rate:

1.8%

2.4%

Rental vacancy rate:

15.3%

9.2%

Owner-occupied housing units:

271

Population in owner-occupied housing units:

642

Average household size of owner-occupied units:

2.4

2.65

Renter-occupied housing units:

104

Population in renter-occupied housing units:

197

Average household size of renter-occupied units:

1.9

2.44

Educational Attainment (57751 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Population 25 years and over

454

Less than 9th grade:

5.3%

6.2%

9th to 12th grade, no diploma:

10.4%

8.7%

High school graduate (includes equivalency):

154

33.9%

29.0%

Some college, no degree:

101

22.2%

20.6%

Associate degree:

8.6%

7.5%

Bachelor's degree:

15.4%

17.6%

Graduate or professional degree:

4.2%

10.3%

Percent high school graduate or higher:

84.4%

85.0%

Percent bachelor's degree or higher:

19.6%

27.9%

Income Information (57751 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Mean household income:

$0 / yr.

$70,883

Per capita income:

$0 / yr.

$27,334

Males 15 years and over with income:

250

29.6%

50.4%

Median income:

$20,921 / yr.

$27,932 / yr.

Full-time, year-round workers:

104

12.3%

59.7%

Median income:

$27,500 / yr.

$38,349 / yr.

Females 15 years and over with income:

246

29.1%

49.6%

Median income:

$15,300 / yr.

$16,327 / yr.

Full-time, year-round workers:

10.4%

40.3%

Median income:

$21,923 / yr.

$28,135 / yr.

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