57636 ZIP Code — Lantry, SD
Dewey County, South Dakota
ZIP code 57636 is located in Lantry, South Dakota, within Dewey County. It covers approximately 20.57 square miles and serves a population of 77 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 605.
77
population
20.57
sq mi land
Standard
ZIP type
Mountain (MT)
timezone
57636 ZIP code map
Cities in ZIP code 57636
Below are the cities the US Postal Service accepts for ZIP code 57636. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Lantry | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 77 |
| Population density | 4 / sq mi |
| State FIPS | 46 |
| County FIPS | 041 |
| Geography | |
|---|---|
| Land area | 20.57 sq mi |
| Water area | 0.12 sq mi |
| Latitude | 45.0519 |
| Longitude | -101.3985 |
| 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 | 54.5% | 56.2% | 41.7% |
| $50k – $100k | 27.3% | 26.8% | 33.8% |
| $100k – $200k | 18.2% | 14.6% | 20.1% |
| Over $200k | 0.0% | 2.4% | 4.4% |
Demographics & statistics
77
Population
4
People per sq mi
48.2
Median age
$103,333
Median household income
$36,013
Per capita income
$117,900
Median home value
$0
Median monthly rent
100.0%
Home ownership
0.0%
Poverty rate
0.0%
Unemployment
48
Housing units
20.3%
Bachelor's or higher
Age distribution
Male
Female
3
10–14
2
5
15–19
3
10
35–44
8
7
45–54
6
5
60–64
3
11
65–74
9
2
75–84
1
1
85+
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 13 | 16.9% |
| 18 and over | 64 | 83.1% |
| 65 and over | 25 | 32.5% |
| Median age | 48.2 years | |
Race & ethnicity
White
77.9%
American Indian / Alaska Native
22.1%
| Group | Count | % |
|---|---|---|
| White | 60 | 77.9% |
| American Indian / Alaska Native | 17 | 22.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 54.5% | 56.2% | 41.7% |
| $50k – $100k | 27.3% | 26.8% | 33.8% |
| $100k – $200k | 18.2% | 14.6% | 20.1% |
| Over $200k | 0.0% | 2.4% | 4.4% |
$15k–$25k
5.6%
$35k–$50k
8.3%
$50k–$75k
30.6%
$100k–$150k
38.9%
$150k–$200k
16.7%
| Range | % of households |
|---|---|
| $15k–$25k | 5.6% |
| $35k–$50k | 8.3% |
| $50k–$75k | 30.6% |
| $100k–$150k | 38.9% |
| $150k–$200k | 16.7% |
| Median income | $103,333 |
Housing
Home values
Under $50k
5.6%
$50k–$100k
16.7%
$100k–$150k
38.9%
$200k–$300k
38.9%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $117,900 |
| Median rent / month | $0 |
| Owner occupied | 100.0% |
| Renter occupied | 0.0% |
| Vacant | 25.0% |
| Single-family detached | 58.3% |
| Large apartment buildings | 0.0% |
| Mobile homes | 41.7% |
| Median rooms | 7.1 |
| Avg household size (owned) | 2.14 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 10.4% |
| 2000–2009 | 0.0% |
| 1990–1999 | 10.4% |
| 1980–1989 | 16.7% |
| 1970–1979 | 37.5% |
| 1960–1969 | 0.0% |
| 1950–1959 | 12.5% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 12.5% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 0.0% |
| 3 bedrooms | 22.9% |
| 4 bedrooms | 43.8% |
| 5+ bedrooms | 33.3% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 13.9% |
| 2 vehicles | 16.7% |
| 3 or more | 69.4% |
Heating fuel
| Fuel type | % |
|---|---|
| Electricity | 30.6% |
| Propane / LP gas | 69.4% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 23 | 63.9% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 2 | 5.6% |
| Female householder, no spouse | 11 | 30.6% |
| Households with children under 18 | 11 | 30.6% |
| Households with seniors (65+) | 17 | 47.2% |
| Average household size | 2.14 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 35.9% | 9.1% |
| Married | 59.0% | 57.6% |
| Separated | 0.0% | 0.0% |
| Widowed | 5.1% | 33.3% |
| Divorced | 0.0% | 0.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.0%
HS graduate
60.9%
Some college, no degree
12.5%
Associate's degree
6.3%
Bachelor's degree
20.3%
Graduate / professional
0.0%
| Metric | % |
|---|---|
| HS diploma or higher | 100.0% |
| Bachelor's or higher | 20.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 5 | 38.5% |
| High school | 8 | 61.5% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Agriculture & mining
25.5%
Information
23.5%
Education & healthcare
19.6%
Other services
11.8%
Construction
9.8%
Transportation & utilities
9.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 37.3% |
| Service | 0.0% |
| Sales & office | 35.3% |
| Natural resources & construction | 17.6% |
| Production & transportation | 9.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 33.3% |
| Government | 41.2% |
| Self-employed | 25.5% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 41.2% |
| Carpool | 23.5% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 35.3% |
| Other means | 0.0% |
| Avg commute (minutes) | 12.4 |
Poverty
All people
0.0%
Under 18 years
0.0%
18 and over
0.0%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 47.2% |
| Retirement income | 0.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 5.6% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 42.5% |
| High blood pressure | 31.4% |
| High cholesterol | 26.8% |
| Diabetes | 12.1% |
| Heart disease | 6.7% |
| Stroke | 3.8% |
| Asthma | 11.2% |
| Arthritis | 22.4% |
| Kidney disease | 3.2% |
| Pulmonary disease | 7.3% |
| Cancer | 5.0% |
| Behavior / access | % |
|---|---|
| Smoking | 28.8% |
| Binge drinking | 20.4% |
| No physical activity | 28.6% |
| Less than 7 hrs sleep | 34.0% |
| Depression | 17.5% |
| Fair or poor health | 17.5% |
| Poor mental health | 14.8% |
| Poor physical health | 12.3% |
| No health insurance | 14.8% |
| Visited doctor (checkup) | 74.0% |
| Visited dentist | 60.2% |
| Cholesterol screening | 84.4% |
| Teeth loss | 22.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 4 | 6.3% |
| Disability | % |
|---|---|
| Any disability | 5.2% |
| Under 18 | 0.0% |
| 18–64 years | 0.0% |
| 65 and over | 16.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 90.9% |
| Public insurance | 32.5% |
| No insurance | 6.5% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 77 | 100.0% |
| 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) | 77 | 100.0% |
| Born in same state | 77 | 100.0% |
| Born in different state | 75 | 97.4% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 20 | 26% |
| Polish | 19 | 24.7% |
| Ancestry | Count | % |
|---|---|---|
| English | 6 | 7.8% |
| Arab | 5 | 6.5% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 46.8% |
| Internet access | 69.4% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57636
What city is ZIP code 57636 in?
ZIP code 57636 is primarily assigned to Lantry, South Dakota.
What county is ZIP code 57636 in?
ZIP code 57636 falls within Dewey County, South Dakota.
Does ZIP code 57636 have an older population?
33% of residents in ZIP code 57636 are 65 or older, above the national average of ~17%.
Does ZIP code 57636 have a large retiree population?
47% of households in ZIP code 57636 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 57636?
The median home value in ZIP code 57636 is $117,900.
What is the median household income in ZIP code 57636?
The median household income in ZIP code 57636 is $103,333, above the national median of ~$75,000.
What timezone is ZIP code 57636 in?
ZIP code 57636 observes the MST timezone.