Buffalo County, SD ZIP Codes
South Dakota (SD) · 2 ZIP codes · 2 cities
2
ZIP codes
1,923
population (2021)
+0.6%
pop change since 2010
46017
FIPS code
Buffalo County ZIP code map
About Buffalo County
Buffalo County is located in South Dakota and contains 2 ZIP codes across 2 cities and communities.
The county's population was 1,923 as of 2021,
an increase of
0.6% from 1,912 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Buffalo County is 46017.
| Population | |
|---|---|
| 2021 population | 1,923 |
| 2010 population | 1,912 |
| Change | +0.6% |
| County details | |
|---|---|
| State | South Dakota |
| FIPS code | 46017 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Buffalo County
ZIP codes for Buffalo County, SD (2)
| ZIP code | City | County | Map |
|---|---|---|---|
| 57339 | Fort Thompson | Buffalo | View map |
| 57341 | Gann Valley | Buffalo | View map |
Demographics & statistics
1,487
Population
22.7
Median age
$29,357
Median household income
$12,343
Per capita income
$54,550
Median home value
$271
Median monthly rent
60.5%
Home ownership
31.3%
Poverty rate
8.7%
Unemployment
256
Housing units
13.1%
Bachelor's or higher
Age distribution
Male
Female
101
Under 5
116
61
5–9
71
54
10–14
62
89
15–19
103
49
20–24
57
80
25–34
91
92
35–44
105
51
45–54
59
31
55–59
35
37
60–64
42
27
65–74
30
19
75–84
22
1
85+
2
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 584 | 44.4% |
| 18 and over | 903 | 55.7% |
| 65 and over | 101 | 9.0% |
| Median age | 22.7 years | |
Race & ethnicity
American Indian / Alaska Native
80.7%
White
16.7%
Hispanic or Latino
1.3%
Two or more races
1.3%
| Group | Count | % |
|---|---|---|
| American Indian / Alaska Native | 1,216 | 80.7% |
| White | 252 | 16.7% |
| Hispanic or Latino | 19 | 1.3% |
| Two or more races | 19 | 1.3% |
Household income
Under $10k
18.9%
$10k–$15k
4.6%
$15k–$25k
7.2%
$25k–$35k
1.7%
$35k–$50k
23.8%
$50k–$75k
13.2%
$75k–$100k
19.5%
$100k–$150k
9.8%
$150k–$200k
0.5%
$200k+
1.1%
| Range | % of households |
|---|---|
| Under $10k | 18.9% |
| $10k–$15k | 4.6% |
| $15k–$25k | 7.2% |
| $25k–$35k | 1.7% |
| $35k–$50k | 23.8% |
| $50k–$75k | 13.2% |
| $75k–$100k | 19.5% |
| $100k–$150k | 9.8% |
| $150k–$200k | 0.5% |
| $200k+ | 1.1% |
| Median income | $29,357 |
Housing
Home values
Under $50k
30.8%
$50k–$100k
7.9%
$100k–$150k
17.4%
$150k–$200k
16.8%
$200k–$300k
27.2%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $54,550 |
| Median rent / month | $271 |
| Owner occupied | 60.5% |
| Renter occupied | 39.5% |
| Vacant | 20.8% |
| Single-family detached | 84.9% |
| Large apartment buildings | 0.7% |
| Mobile homes | 8.9% |
| Median rooms | 7.5 |
| Avg household size (owned) | 2.94 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 10.6% |
| 2000–2009 | 1.9% |
| 1990–1999 | 11.5% |
| 1980–1989 | 15.3% |
| 1970–1979 | 16.7% |
| 1960–1969 | 10.6% |
| 1950–1959 | 6.9% |
| 1940–1949 | 0.7% |
| 1939 or earlier | 26.1% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.8% |
| 1 bedroom | 6.1% |
| 2 bedrooms | 27.0% |
| 3 bedrooms | 22.5% |
| 4 bedrooms | 22.9% |
| 5+ bedrooms | 20.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 9.9% |
| 1 vehicle | 18.6% |
| 2 vehicles | 47.5% |
| 3 or more | 24.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 0.8% |
| Electricity | 36.4% |
| Propane / LP gas | 60.7% |
| Wood | 1.9% |
| No fuel used | 0.3% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 91 | 37.9% |
| Cohabiting couple | 34 | 5.2% |
| Male householder, no spouse | 107 | 24.4% |
| Female householder, no spouse | 144 | 32.6% |
| Households with children under 18 | 181 | 41.8% |
| Households with seniors (65+) | 91 | 24.6% |
| Average household size | 3.56 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 30.9% | 55.1% |
| Married | 48.7% | 34.7% |
| Separated | 0.4% | 1.4% |
| Widowed | 13.1% | 2.8% |
| Divorced | 6.9% | 6.1% |
Education
Less than 9th grade
0.8%
Some HS, no diploma
9.9%
HS graduate
35.6%
Some college, no degree
26.0%
Associate's degree
14.7%
Bachelor's degree
6.1%
Graduate / professional
7.1%
| Metric | % |
|---|---|
| HS diploma or higher | 89.4% |
| Bachelor's or higher | 13.1% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 62 | 12.7% |
| Kindergarten | 26 | 6.3% |
| Elementary school | 199 | 52.3% |
| High school | 138 | 26.2% |
| College / grad school | 20 | 2.7% |
Employment
Industry of employment
Agriculture & mining
29.2%
Education & healthcare
27.7%
Finance & real estate
12.6%
Public administration
7.4%
Arts, food & hospitality
6.0%
Construction
4.9%
Retail trade
4.8%
Professional & management
4.2%
Transportation & utilities
1.2%
Manufacturing
1.1%
Other services
0.9%
Information
0.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 55.6% |
| Service | 22.6% |
| Sales & office | 8.1% |
| Natural resources & construction | 7.5% |
| Production & transportation | 6.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 40.9% |
| Government | 24.2% |
| Self-employed | 35.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 70.4% |
| Carpool | 12.8% |
| Public transit | 0.0% |
| Walk | 1.8% |
| Other means | 1.8% |
| Avg commute (minutes) | 13.3 |
Poverty
All people
31.3%
Under 18 years
34.8%
18 and over
28.5%
Married-couple families
23.6%
Female-led households
34.9%
Income support
| Source | % of households |
|---|---|
| Social Security | 27.8% |
| Retirement income | 15.2% |
| Supplemental Security | 8.4% |
| Cash public assistance | 7.3% |
| Food stamps / SNAP | 16.5% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 37.5% |
| High cholesterol | 31.3% |
| Heart disease | 10.2% |
| Stroke | 5.7% |
| Asthma | 12.4% |
| Arthritis | 28.1% |
| Kidney disease | 4.5% |
| Pulmonary disease | 11.5% |
| Cancer | 6.3% |
| Behavior / access | % |
|---|---|
| Binge drinking | 18.0% |
| No physical activity | 36.5% |
| Less than 7 hrs sleep | 33.1% |
| Fair or poor health | 24.9% |
| Poor mental health | 15.8% |
| Poor physical health | 16.3% |
| No health insurance | 18.5% |
| Visited doctor (checkup) | 76.8% |
| Visited dentist | 49.6% |
| Cholesterol screening | 83.2% |
| Teeth loss | 32.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 76 | 7.2% |
| Disability | % |
|---|---|
| Any disability | 8.1% |
| Under 18 | 0.3% |
| 18–64 years | 11.4% |
| 65 and over | 23.8% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 52.4% |
| Public insurance | 27.7% |
| Uninsured under 19 | 13.8% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 1,270 | 89.5% |
| Spanish | 18 | 0.8% |
| 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) | 1,487 | 100.0% |
| Born in same state | 1,482 | 99.8% |
| Born in different state | 1,393 | 96.5% |
| Foreign born | 5 | 0.2% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Arab | 147 | 9.9% |
| Polish | 29 | 2% |
| Italian | 13 | 0.9% |
| Ancestry | Count | % |
|---|---|---|
| French | 7 | 0.5% |
| English | 5 | 0.3% |
| Dutch | 5 | 0.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 28.7% |
| Internet access | 85.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Explore more South Dakota ZIP codes