57427 ZIP Code — Bath, SD
Brown County, South Dakota
ZIP code 57427 is located in Bath, South Dakota, within Brown County. It covers approximately 61.15 square miles and serves a population of 438 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.
About ZIP code 57427
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $342,500.
The gap between median ($96,488) and mean household income suggests income inequality — a small number of higher earners pull the average up.
The dominant occupation class is sales and office, with retail trade as the leading industry. The average commute of 18 minutes is near the national average.
Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.
438
population
61.15
sq mi land
Standard
ZIP type
Central (CT)
timezone
57427 ZIP code map
Cities in ZIP code 57427
Below are the cities the US Postal Service accepts for ZIP code 57427. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Bath | Preferred |
Nearby ZIP codes
57445 Groton (8.6 mi)
57433 Columbia (10.1 mi)
57401 Aberdeen (10.2 mi)
57479 Warner (12.8 mi)
57481 Westport (19.4 mi)
57422 Andover (19.5 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 438 |
| Population density | 7 / sq mi |
| State FIPS | 46 |
| County FIPS | 013 |
| Geography | |
|---|---|
| Land area | 61.15 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 45.4878 |
| Longitude | -98.3185 |
| 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 | 19.9% | 39.9% | 41.7% |
| $50k – $100k | 33.0% | 34.8% | 33.8% |
| $100k – $200k | 34.5% | 20.4% | 20.1% |
| Over $200k | 12.6% | 4.9% | 4.4% |
Demographics & statistics
438
Population
7
People per sq mi
46.0
Median age
$96,488
Median household income
$66,416
Per capita income
$342,500
Median home value
$0
Median monthly rent
100.0%
Home ownership
0.0%
Poverty rate
0.0%
Unemployment
194
Housing units
26.8%
Bachelor's or higher
Age distribution
Male
Female
7
Under 5
5
5
5–9
4
6
10–14
4
19
15–19
15
17
20–24
13
20
25–34
15
46
35–44
35
75
45–54
56
5
55–59
3
5
60–64
3
31
65–74
24
14
75–84
11
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 65 | 14.8% |
| 18 and over | 373 | 85.2% |
| 65 and over | 80 | 18.3% |
| Median age | 46.0 years | |
Race & ethnicity
White
100%
| Group | Count | % |
|---|---|---|
| White | 438 | 100% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 19.9% | 39.9% | 41.7% |
| $50k – $100k | 33.0% | 34.8% | 33.8% |
| $100k – $200k | 34.5% | 20.4% | 20.1% |
| Over $200k | 12.6% | 4.9% | 4.4% |
$25k–$35k
16.8%
$50k–$75k
14.1%
$75k–$100k
23.8%
$100k–$150k
30.8%
$200k+
14.6%
| Range | % of households |
|---|---|
| $25k–$35k | 16.8% |
| $50k–$75k | 14.1% |
| $75k–$100k | 23.8% |
| $100k–$150k | 30.8% |
| $200k+ | 14.6% |
| Median income | $96,488 |
Housing
Home values
Under $50k
3.8%
$50k–$100k
7.0%
$100k–$150k
17.3%
$150k–$200k
6.5%
$300k–$500k
55.7%
$500k–$1M
5.9%
$1M+
3.8%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $342,500 |
| Median rent / month | $0 |
| Owner occupied | 100.0% |
| Renter occupied | 0.0% |
| Vacant | 4.6% |
| Single-family detached | 80.4% |
| Large apartment buildings | 0.0% |
| Mobile homes | 19.6% |
| Median rooms | 6.9 |
| Avg household size (owned) | 2.37 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 25.8% |
| 2000–2009 | 27.3% |
| 1990–1999 | 25.3% |
| 1980–1989 | 0.0% |
| 1970–1979 | 4.1% |
| 1960–1969 | 0.0% |
| 1950–1959 | 6.7% |
| 1940–1949 | 10.8% |
| 1939 or earlier | 0.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 4.6% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 22.7% |
| 3 bedrooms | 34.5% |
| 4 bedrooms | 22.7% |
| 5+ bedrooms | 15.5% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 21.6% |
| 2 vehicles | 30.8% |
| 3 or more | 47.6% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 4.3% |
| Electricity | 73.5% |
| Propane / LP gas | 16.2% |
| No fuel used | 5.9% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 145 | 78.4% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 9 | 4.9% |
| Female householder, no spouse | 31 | 16.8% |
| Households with children under 18 | 29 | 15.7% |
| Households with seniors (65+) | 44 | 23.8% |
| Average household size | 2.37 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 28.1% | 17.3% |
| Married | 68.0% | 82.7% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 0.0% |
| Divorced | 3.9% | 0.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
5.8%
HS graduate
39.4%
Some college, no degree
9.6%
Associate's degree
18.4%
Bachelor's degree
21.6%
Graduate / professional
5.2%
| Metric | % |
|---|---|
| HS diploma or higher | 94.2% |
| Bachelor's or higher | 26.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 19 | 35.8% |
| High school | 34 | 64.2% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Retail trade
15.1%
Agriculture & mining
13.6%
Construction
12.0%
Education & healthcare
11.7%
Wholesale trade
11.4%
Professional & management
9.3%
Manufacturing
9.0%
Transportation & utilities
6.3%
Public administration
5.7%
Arts, food & hospitality
3.0%
Finance & real estate
2.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 22.9% |
| Service | 9.3% |
| Sales & office | 35.8% |
| Natural resources & construction | 19.6% |
| Production & transportation | 12.3% |
Employment type
| Type | % |
|---|---|
| Private sector | 87.7% |
| Government | 5.7% |
| Self-employed | 6.6% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 94.3% |
| Carpool | 0.0% |
| Public transit | 0.0% |
| Walk | 2.4% |
| Work from home | 3.3% |
| Other means | 0.0% |
| Avg commute (minutes) | 17.6 |
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 | 12.4% |
| Retirement income | 7.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 33.2% |
| High blood pressure | 30.6% |
| High cholesterol | 31.5% |
| Diabetes | 8.2% |
| Heart disease | 5.5% |
| Stroke | 2.4% |
| Asthma | 8.1% |
| Arthritis | 23.1% |
| Kidney disease | 2.4% |
| Pulmonary disease | 5.0% |
| Cancer | 6.4% |
| Behavior / access | % |
|---|---|
| Smoking | 18.2% |
| Binge drinking | 21.6% |
| No physical activity | 21.5% |
| Less than 7 hrs sleep | 29.6% |
| Depression | 16.0% |
| Fair or poor health | 9.5% |
| Poor mental health | 10.4% |
| Poor physical health | 7.8% |
| No health insurance | 10.9% |
| Visited doctor (checkup) | 73.9% |
| Visited dentist | 70.1% |
| Cholesterol screening | 89.1% |
| Teeth loss | 11.4% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 33 | 8.8% |
| Disability | % |
|---|---|
| Any disability | 1.8% |
| Under 18 | 0.0% |
| 18–64 years | 2.7% |
| 65 and over | 0.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 95.7% |
| Public insurance | 17.4% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 426 | 97.3% |
| 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) | 438 | 100.0% |
| Born in same state | 438 | 100.0% |
| Born in different state | 309 | 70.5% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Arab | 101 | 23.1% |
| Polish | 47 | 10.7% |
| Ancestry | Count | % |
|---|---|---|
| Italian | 13 | 3% |
| French | 4 | 0.9% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 42.2% |
| Internet access | 100.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57427
What city is ZIP code 57427 in?
ZIP code 57427 is primarily assigned to Bath, South Dakota.
What county is ZIP code 57427 in?
ZIP code 57427 falls within Brown County, South Dakota.
What is the typical home value in ZIP code 57427?
The median home value in ZIP code 57427 is $342,500.
What is the population of ZIP code 57427?
ZIP code 57427 has an estimated population of 438 residents, with a density of 7 people per square mile.
What is the median household income in ZIP code 57427?
The median household income in ZIP code 57427 is $96,488, above the national median of ~$75,000.
What timezone is ZIP code 57427 in?
ZIP code 57427 observes the CST timezone.