US ZIP Code
57061

Sinai, SD

Brookings County  ·  South Dakota

● Active
👥 220 Population ↑ 210% since 2019
💰 $52,188 Median HH Income
▼ 32% below avg ↑ 55% since 2019
🎂 24.9 Median Age ↓ 20% since 2019
🏠 $91,500 Median Home Value
▼ 67% below avg ↑ 59% since 2019
🎓 23.4% College Grads
▼ 40% below avg
📊 7.6% Unemployment
▲ 56% above avg
ZIP Code Details
ZIP Code57061
CitySinai
StateSouth Dakota (SD)
CountyBrookings County
Area Code605
Elevation1,772 ft
Latitude44.244494
Longitude-97.044031
TimezoneChicago (DST)
FIPS46011
ZIP TypePO Box
StatusActive
People & Population (ACS 2023)
♂ Male 50.0% (110) Female 50.0% (110) ♀

Race & Ethnicity

White: 91.4%Hispanic: 8.6%Race
White91.4%
Hispanic8.6%

Age Breakdown

Under 5
30%
5–17
13%
18–24
8%
25–44
29%
45–64
15%
65+
1%

Key Indicators

Median Age24.9 yrs ↓ 20% since 2019
Avg Household Size2.89
Below Poverty1.4% ▼ 86% below avg
College Grads23.4% ▼ 40% below avg
Unemployment7.6% ▲ 56% above avg
No HS Diploma7 (7.4%)
HS Graduate44 (46.8%)
Some College10 (10.6%)
Associates11 (11.7%)
Bachelors1 (1.1%)
Graduate Degree21 (22.3%)

Education

No HS: 7.4%HS Grad: 46.8%Some College: 10.6%Associates: 11.7%Bachelors: 1.1%Graduate: 22.3%Edu
No HS7.4%
HS Grad46.8%
Some College10.6%
Associates11.7%
Bachelors1.1%
Graduate22.3%
Housing & Income

Housing Tenure

Owner: 67.1%Renter: 32.9%Tenure
Owner67.1%
Renter32.9%

Home Value Distribution

Under $50k
6%
$50k–100k
61%
$100k–150k
10%
$150k–200k
12%
$300k–500k
2%
Over $500k
10%

Financials

Median HH Income$52,188 ▼ 32% below avg ↑ 55% since 2019
Median Home Value$91,500 ▼ 67% below avg ↑ 59% since 2019
Home/Income Ratio1.8x (nat avg ~3.5x)
Total Units83
Vacant Units7
Avg HH Size2.89

Income Distribution

Under $25k
6%
$25k–50k
31%
$50k–75k
23%
$75k–100k
25%
$100k–150k
13%
$150k–200k
1%
Over $200k
1%
Employment & Commute

How People Get to Work

Drove Alone
100%

Commute Time

Under 15 min
1%
15–30 min
80%
30–45 min
13%
Over 45 min
6%
Housing Stock

Year Built

1940s–1950s
15%
1960s–1970s
4%
1980s–1990s
6%
2000+
75%

Summary

Total Units83
Vacant7
Owner Occupied67.1%
Renter Occupied32.9%
Avg HH Size2.89
Frequently Asked Questions
ZIP code 57061 is in Sinai, SD, in Brookings County.
ZIP code 57061 is located in South Dakota (SD).
ZIP code 57061 is in Brookings County, SD.
ZIP 57061 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 57061 is 220 people (ACS 2023).
The median household income in ZIP code 57061 is $52,188 (ACS 2023).
The median home value in ZIP 57061 is $91,500 (ACS 2023).
About ZIP Code 57061

ZIP code 57061 is located in Sinai, South Dakota, within Brookings County. With a population of 220, this is a sparsely populated ZIP code with a young community — the median age is 24.9 years. Economically, 57061 is a working-class ZIP code: the median household income of $52,188 is below the national average.

Real estate in ZIP code 57061 represents one of the more affordable housing markets in the country. The median home value of $91,500 is well below the national average. Homeownership is strong here — 67.1% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 59% since 2019.

The population of 57061 is primarily White (91.36%). Residents are less-educated — 23.4% hold a bachelor's degree or higher, which is below the national average. Poverty affects a relatively small share of residents at 1.4%. Household income has grown by 55% since 2019.

The unemployment rate in 57061 stands at 7.6%, which is significantly above the national average. As in most parts of the country, driving alone is the dominant commute mode at 87%.

Overall, ZIP code 57061 in Sinai, SD is characterized as working-class, less-educated, a young community, and predominantly owner-occupied. With 220 residents, a median household income of $52,188, and a median home value of $91,500, it offers a clear picture of life in this part of South Dakota.