57078 ZIP Code — Yankton, SD
Yankton County, South Dakota
ZIP code 57078 is located in Yankton, South Dakota, within Yankton County. It covers approximately 111.28 square miles and serves a population of 20,266 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.
About ZIP code 57078
The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $198,600. Owner-occupancy sits near the national average at 68%.
Median household income is $67,326. 32% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 14 minutes is near the national average.
Educational attainment is near the national average, with 29% of residents holding a bachelor's degree or higher.
20,266
population
111.28
sq mi land
Standard
ZIP type
Central (CT)
timezone
57078 ZIP code map
Cities in ZIP code 57078
Below are the cities the US Postal Service accepts for ZIP code 57078. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Yankton | Preferred |
Nearby ZIP codes
57067 Utica (7.9 mi)
57046 Mission Hill (8.1 mi)
57040 Lesterville (11 mi)
68774 Saint Helena (11.2 mi)
57063 Tabor (12 mi)
57031 Gayville (14 mi)
68730 Crofton (14 mi)
57072 Volin (14.5 mi)
68736 Fordyce (14.5 mi)
57037 Irene (15.5 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 20,266 |
| Population density | 182 / sq mi |
| State FIPS | 46 |
| County FIPS | 135 |
| Geography | |
|---|---|
| Land area | 111.28 sq mi |
| Water area | 8.39 sq mi |
| Latitude | 42.9353 |
| Longitude | -97.4570 |
| 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 | 42.5% | 40.5% | 41.7% |
| $50k – $100k | 36.3% | 38.4% | 33.8% |
| $100k – $200k | 17.0% | 17.1% | 20.1% |
| Over $200k | 4.3% | 4.0% | 4.4% |
Demographics & statistics
20,266
Population
182
People per sq mi
41.4
Median age
$67,326
Median household income
$36,995
Per capita income
$198,600
Median home value
$760
Median monthly rent
67.9%
Home ownership
8.5%
Poverty rate
1.8%
Unemployment
6,300
Housing units
28.8%
Bachelor's or higher
Age distribution
Male
Female
558
Under 5
523
488
5–9
458
776
10–14
729
624
15–19
585
750
20–24
705
1,215
25–34
1,141
1,233
35–44
1,158
1,291
45–54
1,212
683
55–59
641
716
60–64
673
1,148
65–74
1,078
671
75–84
630
299
85+
281
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 4,248 | 21.0% |
| 18 and over | 16,018 | 79.0% |
| 65 and over | 4,107 | 20.3% |
| Median age | 41.4 years | |
Race & ethnicity
White
85.4%
Two or more races
5.9%
Hispanic or Latino
3.7%
American Indian / Alaska Native
2.7%
Black or African American
1.4%
Other race
0.7%
Asian
0.3%
| Group | Count | % |
|---|---|---|
| White | 17,961 | 85.4% |
| Two or more races | 1,248 | 5.9% |
| Hispanic or Latino | 768 | 3.7% |
| American Indian / Alaska Native | 574 | 2.7% |
| Black or African American | 286 | 1.4% |
| Other race | 142 | 0.7% |
| Asian | 55 | 0.3% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 42.5% | 40.5% | 41.7% |
| $50k – $100k | 36.3% | 38.4% | 33.8% |
| $100k – $200k | 17.0% | 17.1% | 20.1% |
| Over $200k | 4.3% | 4.0% | 4.4% |
Under $10k
3.6%
$10k–$15k
3.4%
$15k–$25k
5.5%
$25k–$35k
9.3%
$35k–$50k
17.5%
$50k–$75k
14.5%
$75k–$100k
17.7%
$100k–$150k
16.3%
$150k–$200k
5.9%
$200k+
6.2%
| Range | % of households |
|---|---|
| Under $10k | 3.6% |
| $10k–$15k | 3.4% |
| $15k–$25k | 5.5% |
| $25k–$35k | 9.3% |
| $35k–$50k | 17.5% |
| $50k–$75k | 14.5% |
| $75k–$100k | 17.7% |
| $100k–$150k | 16.3% |
| $150k–$200k | 5.9% |
| $200k+ | 6.2% |
| Median income | $67,326 |
Housing
Home values
Under $50k
6.0%
$50k–$100k
7.9%
$100k–$150k
16.7%
$150k–$200k
20.0%
$200k–$300k
24.7%
$300k–$500k
21.2%
$500k–$1M
3.2%
$1M+
0.3%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $198,600 |
| Median rent / month | $760 |
| Owner occupied | 67.9% |
| Renter occupied | 32.1% |
| Vacant | 6.4% |
| Single-family detached | 66.7% |
| Large apartment buildings | 8.4% |
| Mobile homes | 4.4% |
| Median rooms | 6.1 |
| Avg household size (owned) | 2.38 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 10.5% |
| 2000–2009 | 9.5% |
| 1990–1999 | 14.7% |
| 1980–1989 | 8.8% |
| 1970–1979 | 19.8% |
| 1960–1969 | 10.9% |
| 1950–1959 | 10.2% |
| 1940–1949 | 5.2% |
| 1939 or earlier | 10.3% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 2.1% |
| 1 bedroom | 8.6% |
| 2 bedrooms | 31.1% |
| 3 bedrooms | 31.3% |
| 4 bedrooms | 18.6% |
| 5+ bedrooms | 8.3% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 5.7% |
| 1 vehicle | 30.0% |
| 2 vehicles | 39.3% |
| 3 or more | 25.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 61.0% |
| Electricity | 28.5% |
| Propane / LP gas | 8.6% |
| Fuel oil | 0.5% |
| No fuel used | 1.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 3,941 | 46.7% |
| Cohabiting couple | 771 | 9.1% |
| Male householder, no spouse | 1,663 | 19.7% |
| Female householder, no spouse | 2,056 | 24.4% |
| Households with children under 18 | 2,260 | 26.8% |
| Households with seniors (65+) | 2,716 | 32.2% |
| Average household size | 2.19 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 39.7% | 25.8% |
| Married | 48.3% | 50.3% |
| Separated | 1.0% | 1.1% |
| Widowed | 3.2% | 11.1% |
| Divorced | 7.8% | 11.7% |
Education
Less than 9th grade
2.5%
Some HS, no diploma
3.8%
HS graduate
35.5%
Some college, no degree
18.5%
Associate's degree
10.9%
Bachelor's degree
17.9%
Graduate / professional
10.9%
| Metric | % |
|---|---|
| HS diploma or higher | 93.7% |
| Bachelor's or higher | 28.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 319 | 7.0% |
| Kindergarten | 208 | 4.6% |
| Elementary school | 1,875 | 41.3% |
| High school | 1,210 | 26.7% |
| College / grad school | 928 | 20.4% |
Employment
Industry of employment
Education & healthcare
29.3%
Manufacturing
19.5%
Retail trade
12.7%
Arts, food & hospitality
7.5%
Finance & real estate
6.3%
Other services
4.7%
Construction
4.4%
Agriculture & mining
4.1%
Professional & management
3.6%
Public administration
3.2%
Transportation & utilities
2.8%
Wholesale trade
1.1%
Information
0.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 35.7% |
| Service | 17.9% |
| Sales & office | 18.6% |
| Natural resources & construction | 6.8% |
| Production & transportation | 21.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 81.1% |
| Government | 14.4% |
| Self-employed | 4.5% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 84.1% |
| Carpool | 7.7% |
| Public transit | 0.3% |
| Walk | 2.7% |
| Work from home | 4.1% |
| Other means | 1.2% |
| Avg commute (minutes) | 13.8 |
Poverty
All people
8.5%
Under 18 years
8.1%
18 and over
8.6%
Married-couple families
1.4%
Female-led households
9.5%
Income support
| Source | % of households |
|---|---|
| Social Security | 31.8% |
| Retirement income | 25.1% |
| Supplemental Security | 4.4% |
| Cash public assistance | 1.2% |
| Food stamps / SNAP | 3.7% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 37.9% |
| High blood pressure | 31.5% |
| High cholesterol | 30.2% |
| Diabetes | 9.2% |
| Heart disease | 7.0% |
| Stroke | 3.2% |
| Asthma | 9.0% |
| Arthritis | 23.3% |
| Kidney disease | 3.0% |
| Pulmonary disease | 6.2% |
| Cancer | 7.2% |
| Behavior / access | % |
|---|---|
| Smoking | 18.5% |
| Binge drinking | 19.4% |
| No physical activity | 23.7% |
| Less than 7 hrs sleep | 29.1% |
| Depression | 15.4% |
| Fair or poor health | 12.3% |
| Poor mental health | 10.8% |
| Poor physical health | 9.1% |
| No health insurance | 12.8% |
| Visited doctor (checkup) | 76.1% |
| Visited dentist | 66.4% |
| Cholesterol screening | 87.9% |
| Teeth loss | 14.9% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,198 | 7.5% |
| Disability | % |
|---|---|
| Any disability | 13.7% |
| Under 18 | 5.6% |
| 18–64 years | 9.4% |
| 65 and over | 35.3% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 78.9% |
| Public insurance | 31.1% |
| No insurance | 7.4% |
| Uninsured under 19 | 6.6% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 19,185 | 94.7% |
| Spanish | 421 | 2.2% |
| Other Indo-European | 328 | 1.7% |
| Asian & Pacific Islander | 19 | 0.1% |
| Other languages | 60 | 0.3% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 19,685 | 97.1% |
| Born in same state | 19,547 | 96.5% |
| Born in different state | 12,150 | 60.0% |
| Foreign born | 138 | 0.7% |
| Naturalized citizen | 581 | 2.9% |
| Not a US citizen | 100 | 17.2% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,123 | 10.5% |
| Polish | 1,483 | 7.3% |
| French | 1,100 | 5.4% |
| Dutch | 576 | 2.8% |
| Ancestry | Count | % |
|---|---|---|
| Arab | 524 | 2.6% |
| English | 470 | 2.3% |
| German | 31 | 0.2% |
| Irish | 19 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 41.6% |
| Internet access | 91.4% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57078
What city is ZIP code 57078 in?
ZIP code 57078 is primarily assigned to Yankton, South Dakota.
What county is ZIP code 57078 in?
ZIP code 57078 falls within Yankton County, South Dakota.
What is the population of ZIP code 57078?
ZIP code 57078 has an estimated population of 20,266 residents, with a density of 182 people per square mile.
What is the typical home value in ZIP code 57078?
The median home value in ZIP code 57078 is $198,600.
What is the median household income in ZIP code 57078?
The median household income in ZIP code 57078 is $67,326, below the national median of ~$75,000.
What timezone is ZIP code 57078 in?
ZIP code 57078 observes the CST timezone.