57328 ZIP Code — Corsica, SD
Douglas County, South Dakota
ZIP code 57328 is located in Corsica, South Dakota, within Douglas County. It covers approximately 160.76 square miles and serves a population of 1,173 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.
About ZIP code 57328
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $124,600. Owner-occupancy sits near the national average at 75%.
Median household income is $82,216. The poverty rate of 5% is below the national average.
The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 15 minutes is near the national average.
College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.
25% of residents lack health insurance, above the national average.
1,173
population
160.76
sq mi land
Standard
ZIP type
Central (CT)
timezone
57328 ZIP code map
Cities in ZIP code 57328
Below are the cities the US Postal Service accepts for ZIP code 57328. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Corsica | Preferred |
Nearby ZIP codes
57313 Armour (8.2 mi)
57364 New Holland (9.1 mi)
57375 Stickney (11.3 mi)
57330 Delmont (17.1 mi)
57342 Geddes (19 mi)
57331 Dimock (19.4 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 1,173 |
| Population density | 7 / sq mi |
| State FIPS | 46 |
| County FIPS | 043 |
| Geography | |
|---|---|
| Land area | 160.76 sq mi |
| Water area | 0.93 sq mi |
| Latitude | 43.4210 |
| Longitude | -98.4279 |
| 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 | 38.6% | 42.2% | 41.7% |
| $50k – $100k | 40.3% | 34.5% | 33.8% |
| $100k – $200k | 19.3% | 20.3% | 20.1% |
| Over $200k | 1.8% | 3.0% | 4.4% |
Demographics & statistics
1,173
Population
7
People per sq mi
41.1
Median age
$82,216
Median household income
$33,198
Per capita income
$124,600
Median home value
$908
Median monthly rent
74.9%
Home ownership
5.3%
Poverty rate
0.0%
Unemployment
384
Housing units
19.0%
Bachelor's or higher
Age distribution
Male
Female
46
Under 5
50
36
5–9
39
18
10–14
20
38
15–19
42
47
20–24
51
73
25–34
79
41
35–44
44
59
45–54
64
28
55–59
31
43
60–64
47
76
65–74
82
28
75–84
31
29
85+
31
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 253 | 21.6% |
| 18 and over | 920 | 78.4% |
| 65 and over | 277 | 23.6% |
| Median age | 41.1 years | |
Race & ethnicity
White
97.6%
American Indian / Alaska Native
1.9%
Two or more races
0.5%
| Group | Count | % |
|---|---|---|
| White | 1,145 | 97.6% |
| American Indian / Alaska Native | 22 | 1.9% |
| Two or more races | 6 | 0.5% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 38.6% | 42.2% | 41.7% |
| $50k – $100k | 40.3% | 34.5% | 33.8% |
| $100k – $200k | 19.3% | 20.3% | 20.1% |
| Over $200k | 1.8% | 3.0% | 4.4% |
Under $10k
5.5%
$10k–$15k
1.8%
$15k–$25k
4.1%
$25k–$35k
10.3%
$35k–$50k
5.5%
$50k–$75k
18.0%
$75k–$100k
21.9%
$100k–$150k
23.7%
$150k–$200k
5.7%
$200k+
3.6%
| Range | % of households |
|---|---|
| Under $10k | 5.5% |
| $10k–$15k | 1.8% |
| $15k–$25k | 4.1% |
| $25k–$35k | 10.3% |
| $35k–$50k | 5.5% |
| $50k–$75k | 18.0% |
| $75k–$100k | 21.9% |
| $100k–$150k | 23.7% |
| $150k–$200k | 5.7% |
| $200k+ | 3.6% |
| Median income | $82,216 |
Housing
Home values
Under $50k
23.7%
$50k–$100k
17.6%
$100k–$150k
11.2%
$150k–$200k
14.3%
$200k–$300k
18.2%
$300k–$500k
4.9%
$500k–$1M
10.0%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $124,600 |
| Median rent / month | $908 |
| Owner occupied | 74.9% |
| Renter occupied | 25.1% |
| Vacant | 11.1% |
| Single-family detached | 89.5% |
| Large apartment buildings | 3.8% |
| Mobile homes | 0.8% |
| Median rooms | 6.7 |
| Avg household size (owned) | 2.67 |
Year built
| Era | % |
|---|---|
| 2020 or later | 2.0% |
| 2010–2019 | 6.9% |
| 2000–2009 | 5.7% |
| 1990–1999 | 5.5% |
| 1980–1989 | 9.5% |
| 1970–1979 | 17.0% |
| 1960–1969 | 11.9% |
| 1950–1959 | 2.2% |
| 1940–1949 | 6.1% |
| 1939 or earlier | 33.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 2.8% |
| 1 bedroom | 3.4% |
| 2 bedrooms | 23.9% |
| 3 bedrooms | 33.2% |
| 4 bedrooms | 28.9% |
| 5+ bedrooms | 7.7% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 4.3% |
| 1 vehicle | 15.7% |
| 2 vehicles | 26.9% |
| 3 or more | 53.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 4.1% |
| Electricity | 43.7% |
| Propane / LP gas | 36.9% |
| Fuel oil | 6.4% |
| Wood | 2.7% |
| No fuel used | 0.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 328 | 74.7% |
| Cohabiting couple | 10 | 2.3% |
| Male householder, no spouse | 39 | 8.9% |
| Female householder, no spouse | 62 | 14.1% |
| Households with children under 18 | 124 | 28.2% |
| Households with seniors (65+) | 154 | 35.1% |
| Average household size | 2.51 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 24.5% | 9.3% |
| Married | 70.5% | 66.8% |
| Separated | 0.0% | 0.6% |
| Widowed | 1.9% | 17.2% |
| Divorced | 3.1% | 6.0% |
Education
Less than 9th grade
4.2%
Some HS, no diploma
6.6%
HS graduate
39.3%
Some college, no degree
18.4%
Associate's degree
12.5%
Bachelor's degree
15.8%
Graduate / professional
3.2%
| Metric | % |
|---|---|
| HS diploma or higher | 89.2% |
| Bachelor's or higher | 19.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 10 | 5.5% |
| Kindergarten | 9 | 4.9% |
| Elementary school | 80 | 44.0% |
| High school | 60 | 33.0% |
| College / grad school | 23 | 12.6% |
Employment
Industry of employment
Agriculture & mining
22.6%
Education & healthcare
20.3%
Retail trade
9.3%
Arts, food & hospitality
9.3%
Other services
8.8%
Construction
8.5%
Public administration
5.8%
Manufacturing
5.3%
Transportation & utilities
2.9%
Finance & real estate
2.9%
Wholesale trade
2.6%
Professional & management
1.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 46.6% |
| Service | 18.8% |
| Sales & office | 13.7% |
| Natural resources & construction | 14.9% |
| Production & transportation | 5.9% |
Employment type
| Type | % |
|---|---|
| Private sector | 70.7% |
| Government | 12.3% |
| Self-employed | 15.1% |
| Unpaid family workers | 1.8% |
Commute
| Method | % |
|---|---|
| Drive alone | 64.2% |
| Carpool | 7.3% |
| Public transit | 0.6% |
| Walk | 11.8% |
| Work from home | 13.1% |
| Other means | 3.0% |
| Avg commute (minutes) | 15.4 |
Poverty
All people
5.3%
Under 18 years
0.0%
18 and over
6.9%
Married-couple families
1.8%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 29.8% |
| Retirement income | 10.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 3.6% |
| Food stamps / SNAP | 1.6% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 33.1% |
| High blood pressure | 35.6% |
| High cholesterol | 33.8% |
| Diabetes | 10.4% |
| Heart disease | 9.1% |
| Stroke | 3.9% |
| Asthma | 8.5% |
| Arthritis | 28.6% |
| Kidney disease | 3.6% |
| Pulmonary disease | 6.9% |
| Cancer | 9.6% |
| Behavior / access | % |
|---|---|
| Smoking | 15.9% |
| Binge drinking | 17.3% |
| No physical activity | 24.4% |
| Less than 7 hrs sleep | 26.4% |
| Depression | 14.3% |
| Fair or poor health | 12.3% |
| Poor mental health | 9.7% |
| Poor physical health | 9.6% |
| No health insurance | 11.8% |
| Visited doctor (checkup) | 77.2% |
| Visited dentist | 68.4% |
| Cholesterol screening | 90.6% |
| Teeth loss | 14.8% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 32 | 3.5% |
| Disability | % |
|---|---|
| Any disability | 14.0% |
| Under 18 | 0.8% |
| 18–64 years | 10.6% |
| 65 and over | 38.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 59.7% |
| Public insurance | 24.8% |
| No insurance | 24.8% |
| Uninsured under 19 | 30.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 1,077 | 91.8% |
| Spanish | 3 | 0.3% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 3 | 0.3% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 1,150 | 98.0% |
| Born in same state | 1,150 | 98.0% |
| Born in different state | 847 | 72.2% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 23 | 2.0% |
| Not a US citizen | 23 | 100.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| English | 492 | 41.9% |
| Polish | 45 | 3.8% |
| French | 38 | 3.2% |
| Italian | 30 | 2.6% |
| Ancestry | Count | % |
|---|---|---|
| Arab | 19 | 1.6% |
| Dutch | 7 | 0.6% |
| German | 2 | 0.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 37.4% |
| Internet access | 89.3% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57328
What city is ZIP code 57328 in?
ZIP code 57328 is primarily assigned to Corsica, South Dakota.
What county is ZIP code 57328 in?
ZIP code 57328 falls within Douglas County, South Dakota.
What is the typical home value in ZIP code 57328?
The median home value in ZIP code 57328 is $124,600.
What is the population of ZIP code 57328?
ZIP code 57328 has an estimated population of 1,173 residents, with a density of 7 people per square mile.
What is the median household income in ZIP code 57328?
The median household income in ZIP code 57328 is $82,216, above the national median of ~$75,000.
What timezone is ZIP code 57328 in?
ZIP code 57328 observes the CST timezone.