57341 ZIP Code — Gann Valley, SD
Buffalo County, South Dakota
ZIP code 57341 is located in Gann Valley, South Dakota, within Buffalo County. It covers approximately 248.01 square miles and serves a population of 146 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.
146
population
248.01
sq mi land
Standard
ZIP type
Central (CT)
timezone
57341 ZIP code map
Cities in ZIP code 57341
Below are the cities the US Postal Service accepts for ZIP code 57341. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Gann Valley | Acceptable |
| Gann Valley | Preferred |
Nearby ZIP codes
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 146 |
| Population density | 1 / sq mi |
| State FIPS | 46 |
| County FIPS | 017 |
| Geography | |
|---|---|
| Land area | 248.01 sq mi |
| Water area | 0.73 sq mi |
| Latitude | 44.0653 |
| Longitude | -99.1075 |
| 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 | 41.0% | 69.6% | 41.7% |
| $50k – $100k | 49.2% | 26.7% | 33.8% |
| $100k – $200k | 9.8% | 3.7% | 20.1% |
| Over $200k | 0.0% | 0.0% | 4.4% |
Demographics & statistics
146
Population
1
People per sq mi
15.9
Median age
$56,250
Median household income
$20,894
Per capita income
$0
Median home value
$0
Median monthly rent
79.2%
Home ownership
18.5%
Poverty rate
0.0%
Unemployment
54
Housing units
20.8%
Bachelor's or higher
Age distribution
Male
Female
3
Under 5
5
8
5–9
15
10
10–14
19
5
15–19
9
4
25–34
8
9
35–44
17
2
45–54
3
1
55–59
2
3
60–64
6
5
65–74
10
1
75–84
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 74 | 50.7% |
| 18 and over | 72 | 49.3% |
| 65 and over | 17 | 11.6% |
| Median age | 15.9 years | |
Race & ethnicity
White
100%
| Group | Count | % |
|---|---|---|
| White | 146 | 100% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 41.0% | 69.6% | 41.7% |
| $50k – $100k | 49.2% | 26.7% | 33.8% |
| $100k – $200k | 9.8% | 3.7% | 20.1% |
| Over $200k | 0.0% | 0.0% | 4.4% |
Under $10k
12.5%
$35k–$50k
35.4%
$50k–$75k
8.3%
$75k–$100k
29.2%
$100k–$150k
12.5%
$200k+
2.1%
| Range | % of households |
|---|---|
| Under $10k | 12.5% |
| $35k–$50k | 35.4% |
| $50k–$75k | 8.3% |
| $75k–$100k | 29.2% |
| $100k–$150k | 12.5% |
| $200k+ | 2.1% |
| Median income | $56,250 |
Housing
Home values
Under $50k
31.6%
$50k–$100k
2.6%
$100k–$150k
15.8%
$200k–$300k
50.0%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $0 |
| Median rent / month | $0 |
| Owner occupied | 79.2% |
| Renter occupied | 20.8% |
| Vacant | 25.0% |
| Single-family detached | 100.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 10.0 |
| Avg household size (owned) | 1.79 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 18.8% |
| 2000–2009 | 0.0% |
| 1990–1999 | 10.9% |
| 1980–1989 | 15.6% |
| 1970–1979 | 0.0% |
| 1960–1969 | 0.0% |
| 1950–1959 | 9.4% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 45.3% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 37.5% |
| 3 bedrooms | 0.0% |
| 4 bedrooms | 29.7% |
| 5+ bedrooms | 32.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 0.0% |
| 2 vehicles | 68.8% |
| 3 or more | 31.3% |
Heating fuel
| Fuel type | % |
|---|---|
| Electricity | 52.1% |
| Propane / LP gas | 47.9% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 27 | 56.3% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 9 | 18.8% |
| Female householder, no spouse | 12 | 25.0% |
| Households with children under 18 | 16 | 33.3% |
| Households with seniors (65+) | 12 | 25.0% |
| Average household size | 3.04 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 0.0% | 50.0% |
| Married | 73.5% | 50.0% |
| Separated | 0.0% | 0.0% |
| Widowed | 17.6% | 0.0% |
| Divorced | 8.8% | 0.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.0%
HS graduate
23.6%
Some college, no degree
34.7%
Associate's degree
20.8%
Bachelor's degree
6.9%
Graduate / professional
13.9%
| Metric | % |
|---|---|
| HS diploma or higher | 100.0% |
| Bachelor's or higher | 20.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 8 | 10.8% |
| Kindergarten | 5 | 6.8% |
| Elementary school | 47 | 63.5% |
| High school | 14 | 18.9% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Agriculture & mining
55.7%
Education & healthcare
24.6%
Finance & real estate
19.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 91.8% |
| Service | 8.2% |
| Sales & office | 0.0% |
| Natural resources & construction | 0.0% |
| Production & transportation | 0.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 36.1% |
| Government | 0.0% |
| Self-employed | 63.9% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 67.2% |
| Carpool | 16.4% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 16.4% |
| Other means | 0.0% |
| Avg commute (minutes) | 13.6 |
Poverty
All people
18.5%
Under 18 years
21.6%
18 and over
15.3%
Married-couple families
22.2%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 25.0% |
| Retirement income | 16.7% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 39.1% |
| High blood pressure | 42.9% |
| High cholesterol | 37.5% |
| Diabetes | 16.8% |
| Heart disease | 12.7% |
| Stroke | 6.3% |
| Asthma | 10.8% |
| Arthritis | 34.0% |
| Kidney disease | 5.2% |
| Pulmonary disease | 13.4% |
| Cancer | 8.4% |
| Behavior / access | % |
|---|---|
| Smoking | 30.2% |
| Binge drinking | 15.7% |
| No physical activity | 36.5% |
| Less than 7 hrs sleep | 30.3% |
| Depression | 17.4% |
| Fair or poor health | 24.3% |
| Poor mental health | 12.9% |
| Poor physical health | 16.5% |
| No health insurance | 17.7% |
| Visited doctor (checkup) | 78.1% |
| Visited dentist | 51.9% |
| Cholesterol screening | 86.9% |
| Teeth loss | 28.4% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 4 | 5.6% |
| Disability | % |
|---|---|
| Any disability | 0.7% |
| Under 18 | 0.0% |
| 18–64 years | 0.0% |
| 65 and over | 5.9% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 93.8% |
| Public insurance | 11.6% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 138 | 94.5% |
| 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) | 146 | 100.0% |
| Born in same state | 146 | 100.0% |
| Born in different state | 146 | 100.0% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Arab | 64 | 43.8% |
| Polish | 11 | 7.5% |
| Ancestry | Count | % |
|---|---|---|
| Italian | 10 | 6.8% |
| French | 2 | 1.4% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 32.9% |
| Internet access | 100.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57341
What city is ZIP code 57341 in?
ZIP code 57341 is primarily assigned to Gann Valley, South Dakota.
What county is ZIP code 57341 in?
ZIP code 57341 falls within Buffalo County, South Dakota.
Is ZIP code 57341 family-oriented?
51% of residents in ZIP code 57341 are under 18, reflecting a younger, family-oriented community.
What is the poverty rate in ZIP code 57341?
19% of residents in ZIP code 57341 live below the poverty line, above the national average.
What are the health statistics for ZIP code 57341?
Health data for ZIP code 57341 shows elevated rates of diabetes (17%) and smoking (30%) compared to national benchmarks.
What is the population of ZIP code 57341?
ZIP code 57341 has an estimated population of 146 residents, with a density of 1 people per square mile.
What timezone is ZIP code 57341 in?
ZIP code 57341 observes the CST timezone.