Keystone

Population: 404
Median household income: $62,159
Median home value: $188,800

Keystone is a community in Pennington County, South Dakota, home to 404 residents. At $62,159, its median household income sits below Pennington County's $70,768.

Between 2019 and 2023, Keystone's population declined 5.4% from 427 to 404, while its median home value rose 47.4% from $128,100 to $188,800.

The typical home was built around 1978. 11.1% of residents live below the poverty line.

Demographics

ACS 2019–2023

Population: 404
Median age: 37.0 yrs
Median household income: $62,159
Median home value: $188,800
Median gross rent: $690
Housing units: 204
Homeownership rate: 67.4%
Bachelor's degree or higher: 17.4%
Unemployment rate: 7.7%

Trends

ACS 5-year · 2019–2023

Population

427404

Median household income

$47,500$62,159

Median home value

$128,100$188,800

Median gross rent

$581$690

Year	Population	Median household income	Median home value	Median gross rent
2019	427	$47,500	$128,100	$581
2020	542	$51,719	$151,400	$428
2021	469	$53,194	$158,800	$421
2022	385	$58,646	$161,700	$500
2023	404	$62,159	$188,800	$690

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 59.2%

5 to 1720.0%

18 to 246.7%

25 to 348.4%

35 to 4419.8%

45 to 5412.4%

55 to 6410.9%

65 to 747.7%

75 and over5.0%

	Count	Share
Under 5	37	9.2%
5 to 17	81	20.0%
18 to 24	27	6.7%
25 to 34	34	8.4%
35 to 44	80	19.8%
45 to 54	50	12.4%
55 to 64	44	10.9%
65 to 74	31	7.7%
75 and over	20	5.0%

Race & ethnicity

	Count	Share
White (non-Hispanic)	296	73.3%
Black or African American	0	0.0%
American Indian & Alaska Native	9	2.2%
Asian	2	0.5%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	3	0.7%
Two or more races	28	6.9%
Hispanic or Latino (any race)	66	16.3%

Educational attainment (age 25+)

No high school diploma12.4%

High school graduate49.8%

Some college or associate's20.5%

Bachelor's degree12.7%

Graduate or professional degree4.6%

	Count	Share
No high school diploma	32	12.4%
High school graduate	129	49.8%
Some college or associate's	53	20.5%
Bachelor's degree	33	12.7%
Graduate or professional degree	12	4.6%

Commute to work

Mean travel time to work: 29 min

Drove alone58.3%

Carpooled3.7%

Public transit0.0%

Walked28.7%

Bicycle0.0%

Worked from home5.6%

Other means3.7%

How workers get to work

	Count	Share
Drove alone	126	58.3%
Carpooled	8	3.7%
Public transit	0	0.0%
Walked	62	28.7%
Bicycle	0	0.0%
Worked from home	12	5.6%
Other means	8	3.7%

Travel time

	Count	Share
Under 15 min	87	42.6%
15 to 29 min	18	8.8%
30 to 44 min	29	14.2%
45 to 59 min	57	27.9%
60+ min	13	6.4%

Households

Average household size: 2.90
Poverty rate: 11.1% (45 of 404)

	Count	Share
Family households	102	73.9%
Nonfamily households	36	26.1%

Housing

Median year structure built: 1978

Occupancy

	Count	Share
Occupied	138	67.6%
Vacant	66	32.4%

Tenure (of occupied units)

	Count	Share
Owner-occupied	93	67.4%
Renter-occupied	45	32.6%

1-unit, detached48.0%

1-unit, attached0.0%

2 to 4 units6.9%

5 to 19 units3.4%

20 or more units0.0%

Mobile home & other41.7%

Units in structure

	Count	Share
1-unit, detached	98	48.0%
1-unit, attached	0	0.0%
2 to 4 units	14	6.9%
5 to 19 units	7	3.4%
20 or more units	0	0.0%
Mobile home & other	85	41.7%

Geography

Place GEOID: 4633820
Type (LSAD): 43
Land area: 3 sq mi
Water area: 0 sq mi
Center point: 43.8949, -103.4268