US ZIP Code
57368

Plankinton, SD

Aurora County  ·  South Dakota

● Active
👥 1,090 Population ↓ 8% since 2019
💰 $76,645 Median HH Income
≈ Avg ↑ 11% since 2019
🎂 39.3 Median Age ↑ 6% since 2019
🏠 $143,300 Median Home Value
▼ 49% below avg ↑ 36% since 2019
🎓 47.6% College Grads
▲ 23% above avg
📊 0.5% Unemployment
▼ 90% below avg ↓ 41% since 2019
ZIP Code Details
ZIP Code57368
CityPlankinton
StateSouth Dakota (SD)
CountyAurora County
Area Code605
Elevation1,486 ft
Latitude43.749509
Longitude-98.472097
TimezoneChicago (DST)
FIPS46003
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 52.8% (575) Female 47.3% (515) ♀

Race & Ethnicity

White: 83.3%Hispanic: 11.8%Black: 2.1%Asian: 0.6%Other: 0.8%Race
White83.3%
Hispanic11.8%
Black2.1%
Asian0.6%
Other0.8%

Age Breakdown

Under 5
5%
5–17
20%
18–24
12%
25–44
23%
45–64
26%
65+
6%

Key Indicators

Median Age39.3 yrs ↑ 6% since 2019
Avg Household Size2.48
Below Poverty7.7% ▼ 23% below avg
College Grads47.6% ▲ 23% above avg
Unemployment0.5% ▼ 90% below avg
No HS Diploma6 (0.9%)
HS Graduate186 (28.7%)
Some College60 (9.3%)
Associates87 (13.4%)
Bachelors133 (20.6%)
Graduate Degree175 (27%)

Education

No HS: 0.9%HS Grad: 28.7%Some College: 9.3%Associates: 13.4%Bachelors: 20.6%Graduate: 27%Edu
No HS0.9%
HS Grad28.7%
Some College9.3%
Associates13.4%
Bachelors20.6%
Graduate27.0%
Housing & Income

Housing Tenure

Owner: 73%Renter: 27%Tenure
Owner73.0%
Renter27.0%

Home Value Distribution

Under $50k
8%
$50k–100k
24%
$100k–150k
20%
$150k–200k
11%
$200k–300k
17%
$300k–500k
14%
Over $500k
6%

Financials

Median HH Income$76,645 ≈ Avg ↑ 11% since 2019
Median Home Value$143,300 ▼ 49% below avg ↑ 36% since 2019
Home/Income Ratio1.9x (nat avg ~3.5x)
Median Rent$877/mo ↑ 28% since 2019
Total Units499
Vacant Units80
Avg HH Size2.48

Income Distribution

Under $25k
6%
$25k–50k
12%
$50k–75k
27%
$75k–100k
17%
$100k–150k
29%
$150k–200k
5%
Over $200k
5%
Employment & Commute

How People Get to Work

Drove Alone
80%
Walked
9%
Work From Home
11%

Commute Time

Under 15 min
45%
15–30 min
23%
30–45 min
31%
Over 45 min
2%
Housing Stock

Year Built

1940s–1950s
7%
1960s–1970s
12%
1980s–1990s
15%
2000+
66%

Summary

Total Units499
Vacant80
Owner Occupied73.0%
Renter Occupied27.0%
Avg HH Size2.48
Frequently Asked Questions
ZIP code 57368 is in Plankinton, SD, in Aurora County.
ZIP code 57368 is located in South Dakota (SD).
ZIP code 57368 is in Aurora County, SD.
ZIP 57368 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 57368 is 1,090 people (ACS 2023).
The median household income in ZIP code 57368 is $76,645 (ACS 2023).
The median home value in ZIP 57368 is $143,300 (ACS 2023).
About ZIP Code 57368

ZIP code 57368 is located in Plankinton, South Dakota, within Aurora County. With a population of 1,090, this is a sparsely populated ZIP code with a middle-aged community — the median age is 39.3 years. Economically, 57368 is a middle-income ZIP code: the median household income of $76,645 is near the national average.

Real estate in ZIP code 57368 represents one of the more affordable housing markets in the country. The median home value of $143,300 is below the national average. Renters can expect to pay around $877 per month in median rent. Homeownership is strong here — 73.0% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 36% since 2019.

The population of 57368 is primarily White (83.30%). Residents are well-educated — 47.6% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 7.7%. Household income has grown by 11% since 2019.

The unemployment rate in 57368 stands at 0.5%, which is well below the national average. As in most parts of the country, driving alone is the dominant commute mode at 73%.

Overall, ZIP code 57368 in Plankinton, SD is characterized as middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 1,090 residents, a median household income of $76,645, and a median home value of $143,300, it offers a clear picture of life in this part of South Dakota.