57061 ZIP Code — Sinai, SD
Brookings County, South Dakota
ZIP code 57061 is located in Sinai, South Dakota, within Brookings County. It covers approximately 0.37 square miles and serves a population of 174 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.
174
population
0.37
sq mi land
Standard
ZIP type
Central (CT)
timezone
57061 ZIP code map
Cities in ZIP code 57061
Below are the cities the US Postal Service accepts for ZIP code 57061. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Sinai | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 174 |
| Population density | 470 / sq mi |
| State FIPS | 46 |
| County FIPS | 011 |
| Geography | |
|---|---|
| Land area | 0.37 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 44.2465 |
| Longitude | -97.0389 |
| Timezone | Central (CT) |
| Area code | 605 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 70.2% | 42.0% | 41.7% |
| $50k – $100k | 14.0% | 35.0% | 33.8% |
| $100k – $200k | 15.8% | 20.4% | 20.1% |
| Over $200k | 0.0% | 2.6% | 4.4% |
Demographics & statistics
174
Population
470
People per sq mi
24.7
Median age
$0
Median household income
$24,303
Per capita income
$79,800
Median home value
$900
Median monthly rent
82.1%
Home ownership
4.6%
Poverty rate
0.0%
Unemployment
57
Housing units
34.6%
Bachelor's or higher
Age distribution
Male
Female
31
Under 5
33
1
10–14
1
3
15–19
4
10
20–24
10
9
25–34
10
13
35–44
13
7
45–54
7
0
55–59
1
2
60–64
3
3
65–74
3
1
75–84
2
3
85+
4
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 73 | 42.0% |
| 18 and over | 101 | 58.0% |
| 65 and over | 16 | 9.2% |
| Median age | 24.7 years | |
Race & ethnicity
White
95.5%
Hispanic or Latino
2.2%
Other race
2.2%
| Group | Count | % |
|---|---|---|
| White | 170 | 95.5% |
| Hispanic or Latino | 4 | 2.2% |
| Other race | 4 | 2.2% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 70.2% | 42.0% | 41.7% |
| $50k – $100k | 14.0% | 35.0% | 33.8% |
| $100k – $200k | 15.8% | 20.4% | 20.1% |
| Over $200k | 0.0% | 2.6% | 4.4% |
$10k–$15k
3.0%
$15k–$25k
3.0%
$25k–$35k
11.9%
$35k–$50k
44.8%
$50k–$75k
1.5%
$75k–$100k
23.9%
$100k–$150k
9.0%
$150k–$200k
1.5%
$200k+
1.5%
| Range | % of households |
|---|---|
| $10k–$15k | 3.0% |
| $15k–$25k | 3.0% |
| $25k–$35k | 11.9% |
| $35k–$50k | 44.8% |
| $50k–$75k | 1.5% |
| $75k–$100k | 23.9% |
| $100k–$150k | 9.0% |
| $150k–$200k | 1.5% |
| $200k+ | 1.5% |
| Median income | $0 |
Housing
Home values
Under $50k
9.1%
$50k–$100k
65.5%
$100k–$150k
7.3%
$150k–$200k
5.5%
$300k–$500k
9.1%
$500k–$1M
3.6%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $79,800 |
| Median rent / month | $900 |
| Owner occupied | 82.1% |
| Renter occupied | 17.9% |
| Vacant | 2.9% |
| Single-family detached | 97.1% |
| Large apartment buildings | 0.0% |
| Mobile homes | 2.9% |
| Median rooms | 5.8 |
| Avg household size (owned) | 2.84 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 5.8% |
| 1990–1999 | 0.0% |
| 1980–1989 | 0.0% |
| 1970–1979 | 1.4% |
| 1960–1969 | 7.2% |
| 1950–1959 | 15.9% |
| 1940–1949 | 2.9% |
| 1939 or earlier | 66.7% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 1.4% |
| 2 bedrooms | 37.7% |
| 3 bedrooms | 46.4% |
| 4 bedrooms | 8.7% |
| 5+ bedrooms | 5.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 16.4% |
| 2 vehicles | 28.4% |
| 3 or more | 55.2% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 13.4% |
| Electricity | 40.3% |
| Propane / LP gas | 46.3% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 22 | 32.8% |
| Cohabiting couple | 2 | 3.0% |
| Male householder, no spouse | 34 | 50.7% |
| Female householder, no spouse | 9 | 13.4% |
| Households with children under 18 | 18 | 26.9% |
| Households with seniors (65+) | 15 | 22.4% |
| Average household size | 2.60 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 43.3% | 33.3% |
| Married | 40.0% | 52.1% |
| Separated | 0.0% | 0.0% |
| Widowed | 11.7% | 4.2% |
| Divorced | 5.0% | 10.4% |
Education
Less than 9th grade
4.9%
Some HS, no diploma
2.5%
HS graduate
37.0%
Some college, no degree
19.8%
Associate's degree
1.2%
Bachelor's degree
33.3%
Graduate / professional
1.2%
| Metric | % |
|---|---|
| HS diploma or higher | 92.6% |
| Bachelor's or higher | 34.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 21 | 70.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 2 | 6.7% |
| High school | 7 | 23.3% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Manufacturing
38.6%
Agriculture & mining
25.3%
Professional & management
9.6%
Construction
7.2%
Retail trade
6.0%
Arts, food & hospitality
6.0%
Education & healthcare
4.8%
Transportation & utilities
1.2%
Public administration
1.2%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 21.7% |
| Service | 15.7% |
| Sales & office | 2.4% |
| Natural resources & construction | 16.9% |
| Production & transportation | 43.4% |
Employment type
| Type | % |
|---|---|
| Private sector | 85.5% |
| Government | 2.4% |
| Self-employed | 12.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 94.5% |
| Carpool | 4.1% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 0.0% |
| Other means | 1.4% |
| Avg commute (minutes) | 30.9 |
Poverty
All people
4.6%
Under 18 years
4.1%
18 and over
5.0%
Married-couple families
4.5%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 22.4% |
| Retirement income | 13.4% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 31.1% |
| High blood pressure | 27.2% |
| High cholesterol | 27.3% |
| Diabetes | 7.7% |
| Heart disease | 6.0% |
| Stroke | 2.5% |
| Asthma | 7.9% |
| Arthritis | 20.5% |
| Kidney disease | 2.5% |
| Pulmonary disease | 4.6% |
| Cancer | 7.0% |
| Behavior / access | % |
|---|---|
| Smoking | 12.7% |
| Binge drinking | 20.4% |
| No physical activity | 19.3% |
| Less than 7 hrs sleep | 24.3% |
| Depression | 14.6% |
| Fair or poor health | 8.6% |
| Poor mental health | 9.3% |
| Poor physical health | 7.0% |
| No health insurance | 9.9% |
| Visited doctor (checkup) | 74.7% |
| Visited dentist | 77.3% |
| Cholesterol screening | 90.0% |
| Teeth loss | 9.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 10 | 9.9% |
| Disability | % |
|---|---|
| Any disability | 6.9% |
| Under 18 | 0.0% |
| 18–64 years | 1.2% |
| 65 and over | 68.8% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 84.5% |
| Public insurance | 12.1% |
| No insurance | 8.6% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 110 | 63.2% |
| Spanish | 1 | 0.9% |
| Other Indo-European | 1 | 0.9% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 172 | 98.9% |
| Born in same state | 172 | 98.9% |
| Born in different state | 114 | 65.5% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 2 | 1.1% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Polish | 19 | 10.9% |
| English | 9 | 5.2% |
| French | 8 | 4.6% |
| Ancestry | Count | % |
|---|---|---|
| Italian | 7 | 4% |
| Dutch | 2 | 1.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 38.5% |
| Internet access | 95.5% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57061
What city is ZIP code 57061 in?
ZIP code 57061 is primarily assigned to Sinai, South Dakota.
What county is ZIP code 57061 in?
ZIP code 57061 falls within Brookings County, South Dakota.
Is ZIP code 57061 family-oriented?
42% of residents in ZIP code 57061 are under 18, reflecting a younger, family-oriented community.
Is ZIP code 57061 mostly owner-occupied?
82% of occupied units in ZIP code 57061 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 57061?
The median home value in ZIP code 57061 is $79,800.
Does ZIP code 57061 have a large veteran population?
10% of civilians in ZIP code 57061 are veterans, above the national average of ~7%.
What timezone is ZIP code 57061 in?
ZIP code 57061 observes the CST timezone.