57782 ZIP Code — Smithwick, SD
Fall River County, South Dakota
ZIP code 57782 is located in Smithwick, South Dakota, within Fall River County. It covers approximately 51.00 square miles and serves a population of 63 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 605.
63
population
51.00
sq mi land
Standard
ZIP type
Mountain (MT)
timezone
57782 ZIP code map
Cities in ZIP code 57782
Below are the cities the US Postal Service accepts for ZIP code 57782. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Smithwick | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 63 |
| Population density | 1 / sq mi |
| State FIPS | 46 |
| County FIPS | 047 |
| Geography | |
|---|---|
| Land area | 51.00 sq mi |
| Water area | 0.01 sq mi |
| Latitude | 43.2601 |
| Longitude | -103.1695 |
| Timezone | Mountain (MT) |
| 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 | 45.0% | 48.6% | 41.7% |
| $50k – $100k | 10.0% | 29.9% | 33.8% |
| $100k – $200k | 15.0% | 20.1% | 20.1% |
| Over $200k | 30.0% | 1.4% | 4.4% |
Demographics & statistics
63
Population
1
People per sq mi
42.2
Median age
$60,000
Median household income
$23,914
Per capita income
$277,500
Median home value
$0
Median monthly rent
95.0%
Home ownership
1.6%
Poverty rate
0.0%
Unemployment
19
Housing units
65.7%
Bachelor's or higher
Age distribution
Male
Female
7
Under 5
15
2
15–19
4
3
35–44
6
2
45–54
3
3
55–59
6
2
65–74
3
2
75–84
5
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 28 | 44.4% |
| 18 and over | 35 | 55.6% |
| 65 and over | 12 | 19.0% |
| Median age | 42.2 years | |
Race & ethnicity
Two or more races
54%
White
46%
| Group | Count | % |
|---|---|---|
| Two or more races | 34 | 54% |
| White | 29 | 46% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 45.0% | 48.6% | 41.7% |
| $50k – $100k | 10.0% | 29.9% | 33.8% |
| $100k – $200k | 15.0% | 20.1% | 20.1% |
| Over $200k | 30.0% | 1.4% | 4.4% |
$10k–$15k
5.0%
$15k–$25k
5.0%
$35k–$50k
10.0%
$50k–$75k
55.0%
$150k–$200k
25.0%
| Range | % of households |
|---|---|
| $10k–$15k | 5.0% |
| $15k–$25k | 5.0% |
| $35k–$50k | 10.0% |
| $50k–$75k | 55.0% |
| $150k–$200k | 25.0% |
| Median income | $60,000 |
Housing
Home values
Under $50k
10.5%
$150k–$200k
5.3%
$200k–$300k
57.9%
$300k–$500k
26.3%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $277,500 |
| Median rent / month | $0 |
| Owner occupied | 95.0% |
| Renter occupied | 5.0% |
| Vacant | 0.0% |
| Single-family detached | 100.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 6.5 |
| Avg household size (owned) | 3.26 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 25.0% |
| 2000–2009 | 0.0% |
| 1990–1999 | 0.0% |
| 1980–1989 | 0.0% |
| 1970–1979 | 25.0% |
| 1960–1969 | 5.0% |
| 1950–1959 | 5.0% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 40.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 25.0% |
| 2 bedrooms | 25.0% |
| 3 bedrooms | 25.0% |
| 4 bedrooms | 25.0% |
| 5+ bedrooms | 0.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 5.0% |
| 2 vehicles | 15.0% |
| 3 or more | 80.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Electricity | 55.0% |
| Propane / LP gas | 20.0% |
| Wood | 25.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 15 | 75.0% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 1 | 5.0% |
| Female householder, no spouse | 4 | 20.0% |
| Households with children under 18 | 7 | 35.0% |
| Households with seniors (65+) | 8 | 40.0% |
| Average household size | 3.15 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 28.6% | 10.0% |
| Married | 66.7% | 80.0% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 5.0% |
| Divorced | 4.8% | 5.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.0%
HS graduate
2.9%
Some college, no degree
25.7%
Associate's degree
5.7%
Bachelor's degree
37.1%
Graduate / professional
28.6%
| Metric | % |
|---|---|
| HS diploma or higher | 100.0% |
| Bachelor's or higher | 65.7% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 0 | 0.0% |
| High school | 6 | 100.0% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Agriculture & mining
47.4%
Retail trade
36.8%
Education & healthcare
10.5%
Transportation & utilities
5.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 26.3% |
| Service | 0.0% |
| Sales & office | 52.6% |
| Natural resources & construction | 0.0% |
| Production & transportation | 21.1% |
Employment type
| Type | % |
|---|---|
| Private sector | 84.2% |
| Government | 15.8% |
| Self-employed | 0.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 31.6% |
| Carpool | 36.8% |
| Public transit | 0.0% |
| Walk | 5.3% |
| Work from home | 26.3% |
| Other means | 0.0% |
| Avg commute (minutes) | 0.0 |
Poverty
All people
1.6%
Under 18 years
0.0%
18 and over
2.9%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 40.0% |
| Retirement income | 25.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 36.3% |
| High blood pressure | 34.8% |
| High cholesterol | 33.7% |
| Diabetes | 11.0% |
| Heart disease | 7.7% |
| Stroke | 3.6% |
| Asthma | 9.8% |
| Arthritis | 27.6% |
| Kidney disease | 3.3% |
| Pulmonary disease | 7.4% |
| Cancer | 7.6% |
| Behavior / access | % |
|---|---|
| Smoking | 21.0% |
| Binge drinking | 18.6% |
| No physical activity | 23.9% |
| Less than 7 hrs sleep | 29.6% |
| Depression | 16.9% |
| Fair or poor health | 13.6% |
| Poor mental health | 11.2% |
| Poor physical health | 10.7% |
| No health insurance | 11.3% |
| Visited doctor (checkup) | 76.5% |
| Visited dentist | 66.0% |
| Cholesterol screening | 90.3% |
| Teeth loss | 14.2% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1 | 2.9% |
| Disability | % |
|---|---|
| Any disability | 27.0% |
| Under 18 | 0.0% |
| 18–64 years | 30.4% |
| 65 and over | 83.3% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 96.8% |
| Public insurance | 19.0% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 41 | 65.1% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 63 | 100.0% |
| Born in same state | 63 | 100.0% |
| Born in different state | 49 | 77.8% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 29 | 46% |
| Arab | 9 | 14.3% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 4 | 6.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 31.7% |
| Internet access | 95.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57782
What city is ZIP code 57782 in?
ZIP code 57782 is primarily assigned to Smithwick, South Dakota.
What county is ZIP code 57782 in?
ZIP code 57782 falls within Fall River County, South Dakota.
Is ZIP code 57782 family-oriented?
44% of residents in ZIP code 57782 are under 18, reflecting a younger, family-oriented community.
How educated is the population of ZIP code 57782?
66% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
Is ZIP code 57782 mostly owner-occupied?
95% of occupied units in ZIP code 57782 are owner-occupied, well above the national average.
Does ZIP code 57782 have a large retiree population?
40% of households in ZIP code 57782 receive Social Security income, suggesting a significant retiree or disability population.
What timezone is ZIP code 57782 in?
ZIP code 57782 observes the MST timezone.