Sinai

Population: 220
Median household income: $52,188
Median home value: $91,500

Located in Brookings County, South Dakota, Sinai is a community with a population of 220. The median household income of $52,188 is below the Brookings County median ($67,341).

Between 2019 and 2023, Sinai's population grew 150.0% from 88 to 220, while its median home value rose 52.5% from $60,000 to $91,500.

The largest age group is under 5, 30.0% of residents. White (non-Hispanic) residents are the largest group, 91.4% of the population.

Demographics

ACS 2019–2023

Population: 220
Median age: 24.9 yrs
Median household income: $52,188
Median home value: $91,500
Median gross rent: —
Housing units: 83
Homeownership rate: 67.1%
Bachelor's degree or higher: 21.3%
Unemployment rate: 7.6%

Trends

ACS 5-year · 2019–2023

Population

88220

Median household income

$37,188$52,188

Median home value

$60,000$91,500

Median gross rent

$1,031$900

Year	Population	Median household income	Median home value	Median gross rent
2019	88	$37,188	$60,000	$1,031
2020	166	$36,989	$64,400	—
2021	163	$38,750	$67,400	—
2022	174	—	$79,800	$900
2023	220	$52,188	$91,500	—

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

Age distribution

Under 530.0%

5 to 1712.7%

18 to 248.2%

25 to 3413.2%

35 to 4415.9%

45 to 5411.4%

55 to 643.2%

65 to 743.2%

75 and over2.3%

	Count	Share
Under 5	66	30.0%
5 to 17	28	12.7%
18 to 24	18	8.2%
25 to 34	29	13.2%
35 to 44	35	15.9%
45 to 54	25	11.4%
55 to 64	7	3.2%
65 to 74	7	3.2%
75 and over	5	2.3%

Race & ethnicity

	Count	Share
White (non-Hispanic)	201	91.4%
Black or African American	0	0.0%
American Indian & Alaska Native	0	0.0%
Asian	0	0.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	0	0.0%
Hispanic or Latino (any race)	19	8.6%

Educational attainment (age 25+)

No high school diploma17.6%

High school graduate43.5%

Some college or associate's17.6%

Bachelor's degree19.4%

Graduate or professional degree1.9%

	Count	Share
No high school diploma	19	17.6%
High school graduate	47	43.5%
Some college or associate's	19	17.6%
Bachelor's degree	21	19.4%
Graduate or professional degree	2	1.9%

Commute to work

Mean travel time to work: 29 min

Drove alone87.4%

Carpooled11.5%

Public transit0.0%

Walked0.0%

Bicycle0.0%

Worked from home0.0%

Other means1.1%

How workers get to work

	Count	Share
Drove alone	76	87.4%
Carpooled	10	11.5%
Public transit	0	0.0%
Walked	0	0.0%
Bicycle	0	0.0%
Worked from home	0	0.0%
Other means	1	1.1%

Travel time

	Count	Share
Under 15 min	1	1.1%
15 to 29 min	70	80.5%
30 to 44 min	11	12.6%
45 to 59 min	0	0.0%
60+ min	5	5.7%

Households

Average household size: 2.89
Poverty rate: 1.4% (3 of 220)

	Count	Share
Family households	47	61.8%
Nonfamily households	29	38.2%

Housing

Median year structure built: 1938

Occupancy

	Count	Share
Occupied	76	91.6%
Vacant	7	8.4%

Tenure (of occupied units)

	Count	Share
Owner-occupied	51	67.1%
Renter-occupied	25	32.9%

1-unit, detached98.8%

1-unit, attached0.0%

2 to 4 units0.0%

5 to 19 units0.0%

20 or more units0.0%

Mobile home & other1.2%

Units in structure

	Count	Share
1-unit, detached	82	98.8%
1-unit, attached	0	0.0%
2 to 4 units	0	0.0%
5 to 19 units	0	0.0%
20 or more units	0	0.0%
Mobile home & other	1	1.2%

Geography

Place GEOID: 4658900
Type (LSAD): 43
Land area: 0.37 sq mi
Water area: 0 sq mi
Center point: 44.2445, -97.0440