What city is ZIP code 57368?

ZIP code 57368 is in Plankinton, SD (Aurora County).

What county is ZIP code 57368 in?

ZIP code 57368 is mostly in Aurora County, South Dakota.

How many people live in ZIP code 57368?

About 1,068 people live in the 57368 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 57368

Plankinton, SD, Aurora County

Population

1,068

Land area

232.2sq mi

People per sq mi

City

Plankinton

ZIP 57368 and nearby ZIP codes

Full map

ZIP 57368 at a glance

ZIP 57368 (Plankinton) is 62% less dense than South Dakota as a whole.
The median household income is $74,688, close to the South Dakota median.
A typical owner-occupied home is valued at $202,700 (21% below South Dakota) and median rent is $940 a month.

Local data for ZIP 57368

Counts from official public data

Housing and community stats

ZIP 57368, American Community Survey 2020-2024

Full profile

Median household income

$74,688

Poverty rate

12.4%

Median home value

$202,700

Median rent

$940/mo

Homeownership

68.7%

Bachelor's or higher

27.7%

Median age

39.8

Average commute

21.1 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

ZIP Business Patterns 2023

Employees

335

$13.2M annual payroll

PPP loans

$5.7M

162 loans

Campaign donations

$1,222

0% D, 64% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 57368, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: ice storm

Storm events since 1996

618

Countywide, mostly hail

Flood insurance policies

0.1% of homes, county

July high / Jan low

86° / 8°F

23.9 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 57368, CDC PLACES estimates

All 40 measures

Obesity

36.9%

U.S. 33.3% +3.6 pts

Diabetes

12.8%

U.S. 12.1% +0.7 pts

Smoking

15.1%

U.S. 12.8% +2.3 pts

Uninsured (18-64)

10.6%

U.S. 11.1% -0.5 pts

Frequently asked questions

What city is ZIP code 57368?: ZIP code 57368 is in Plankinton, SD (Aurora County).
What county is ZIP code 57368 in?: ZIP code 57368 is mostly in Aurora County, South Dakota.
How many people live in ZIP code 57368?: About 1,068 people live in the 57368 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.