57640 ZIP Code — Lodgepole, SD
Perkins County, South Dakota
ZIP code 57640 is located in Lodgepole, South Dakota, within Perkins County. It covers approximately 255.05 square miles and serves a population of 44 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 605.
44
population
255.05
sq mi land
Standard
ZIP type
Mountain (MT)
timezone
57640 ZIP code map
Cities in ZIP code 57640
Below are the cities the US Postal Service accepts for ZIP code 57640. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Lodgepole | Acceptable |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 44 |
| Population density | 0 / sq mi |
| State FIPS | 46 |
| County FIPS | 105 |
| Geography | |
|---|---|
| Land area | 255.05 sq mi |
| Water area | 0.54 sq mi |
| Latitude | 45.7525 |
| Longitude | -102.7560 |
| Timezone | Mountain (MT) |
| Area code | 605 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 11.8% | 40.7% | 41.7% |
| $50k – $100k | 54.9% | 40.0% | 33.8% |
| $100k – $200k | 33.3% | 16.1% | 20.1% |
| Over $200k | 0.0% | 3.1% | 4.4% |
Demographics & statistics
44
Population
48.6
Median age
$0
Median household income
$389,720
Per capita income
$0
Median home value
$0
Median monthly rent
57.1%
Home ownership
0.0%
Poverty rate
0.0%
Unemployment
25
Housing units
56.4%
Bachelor's or higher
Age distribution
Male
Female
4
Under 5
1
6
25–34
2
10
45–54
4
9
55–59
4
1
65–74
1
1
75–84
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 5 | 11.4% |
| 18 and over | 39 | 88.6% |
| 65 and over | 4 | 9.1% |
| Median age | 48.6 years | |
Race & ethnicity
White
100%
| Group | Count | % |
|---|---|---|
| White | 44 | 100% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 11.8% | 40.7% | 41.7% |
| $50k – $100k | 54.9% | 40.0% | 33.8% |
| $100k – $200k | 33.3% | 16.1% | 20.1% |
| Over $200k | 0.0% | 3.1% | 4.4% |
$75k–$100k
32.1%
$100k–$150k
17.9%
$200k+
50.0%
| Range | % of households |
|---|---|
| $75k–$100k | 32.1% |
| $100k–$150k | 17.9% |
| $200k+ | 50.0% |
| Median income | $0 |
Housing
Home values
Under $50k
12.5%
$300k–$500k
87.5%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $0 |
| Median rent / month | $0 |
| Owner occupied | 57.1% |
| Renter occupied | 42.9% |
| Vacant | 24.3% |
| Single-family detached | 94.6% |
| Large apartment buildings | 0.0% |
| Mobile homes | 5.4% |
| Median rooms | 5.9 |
| Avg household size (owned) | 1.13 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 0.0% |
| 1990–1999 | 5.4% |
| 1980–1989 | 0.0% |
| 1970–1979 | 37.8% |
| 1960–1969 | 32.4% |
| 1950–1959 | 0.0% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 24.3% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 37.8% |
| 3 bedrooms | 24.3% |
| 4 bedrooms | 0.0% |
| 5+ bedrooms | 37.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 0.0% |
| 2 vehicles | 25.0% |
| 3 or more | 75.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Electricity | 17.9% |
| Propane / LP gas | 82.1% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 14 | 50.0% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 14 | 50.0% |
| Female householder, no spouse | 0 | 0.0% |
| Households with children under 18 | 5 | 17.9% |
| Households with seniors (65+) | 2 | 7.1% |
| Average household size | 1.57 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 0.0% | 0.0% |
| Married | 48.1% | 100.0% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 0.0% |
| Divorced | 51.9% | 0.0% |
Education
Less than 9th grade
5.1%
Some HS, no diploma
0.0%
HS graduate
5.1%
Some college, no degree
17.9%
Associate's degree
15.4%
Bachelor's degree
20.5%
Graduate / professional
35.9%
| Metric | % |
|---|---|
| HS diploma or higher | 94.9% |
| Bachelor's or higher | 56.4% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 0 | 0.0% |
| High school | 0 | 0.0% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Agriculture & mining
83.3%
Education & healthcare
16.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 76.7% |
| Service | 6.7% |
| Sales & office | 0.0% |
| Natural resources & construction | 16.7% |
| Production & transportation | 0.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 83.3% |
| Government | 0.0% |
| Self-employed | 16.7% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 36.7% |
| Carpool | 16.7% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 46.7% |
| Other means | 0.0% |
| Avg commute (minutes) | 0.0 |
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 | 7.1% |
| Retirement income | 0.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 35.0% |
| High blood pressure | 39.1% |
| High cholesterol | 36.2% |
| Diabetes | 12.3% |
| Heart disease | 9.6% |
| Stroke | 4.2% |
| Asthma | 8.8% |
| Arthritis | 31.4% |
| Kidney disease | 3.8% |
| Pulmonary disease | 8.0% |
| Cancer | 9.5% |
| Behavior / access | % |
|---|---|
| Smoking | 17.1% |
| Binge drinking | 15.9% |
| No physical activity | 24.1% |
| Less than 7 hrs sleep | 29.5% |
| Depression | 14.5% |
| Fair or poor health | 13.7% |
| Poor mental health | 9.4% |
| Poor physical health | 10.5% |
| No health insurance | 10.7% |
| Visited doctor (checkup) | 77.5% |
| Visited dentist | 68.2% |
| Cholesterol screening | 92.6% |
| Teeth loss | 13.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 0 | 0.0% |
| Disability | % |
|---|---|
| Any disability | 15.9% |
| Under 18 | 0.0% |
| 18–64 years | 20.0% |
| 65 and over | 0.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 100.0% |
| Public insurance | 9.1% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 39 | 88.6% |
| 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) | 44 | 100.0% |
| Born in same state | 44 | 100.0% |
| Born in different state | 23 | 52.3% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Polish | 14 | 31.8% |
| English | 7 | 15.9% |
| Ancestry | Count | % |
|---|---|---|
| French | 6 | 13.6% |
| Italian | 2 | 4.5% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 63.6% |
| Internet access | 100.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57640
What city is ZIP code 57640 in?
ZIP code 57640 is primarily assigned to Lodgepole, South Dakota.
What county is ZIP code 57640 in?
ZIP code 57640 falls within Perkins County, South Dakota.
How educated is the population of ZIP code 57640?
56% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the population of ZIP code 57640?
ZIP code 57640 has an estimated population of 44 residents.
What timezone is ZIP code 57640 in?
ZIP code 57640 observes the MST timezone.