PlainZIP

Plankinton, SD · standard

ZIP Code 57368

Aurora County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,226
2/sq mi
$74,688
Median income
$202,700
Median home value
27.7%
Bachelor's or higher

The verdict

Plankinton pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.

Top 46%
household income, US ZIPs
44th pct
home value, US ZIPs
2
people per sq mi
69%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57368 against every reporting US ZIP.

ZIP code 57368 is a sparsely populated ZIP (a standard USPS delivery area) in Plankinton, Aurora County, South Dakota, home to just 1,226 residents across 613.0 square miles, a density of 2 people per square mile, in the Chicago time zone.

ZIP 57368 lands in the middle-income range, with a median household income of $74,688 (2% below the South Dakota average), while per-capita income is $44,656. Local economic indicators show a 12.4% poverty rate alongside 1.0% unemployment. The typical home here is valued at $202,700 (6% above the state average); renters pay a median of $940 monthly, and 68.7% of units are owner-occupied.

Educational attainment sits below the national norm: 27.7% of adults hold a bachelor's degree or higher, the median age is 39.8, and the average commute is -. Compare these figures to the South Dakota and national benchmarks above rather than reading 57368's numbers in isolation.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 57368

Top 5 sectors by establishment count in Plankinton, SD

Which industries have the most business establishments in ZIP 57368.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 57368, Plankinton, SD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

1,226

Population

613.0

Area (sq mi)

2

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 57368?

39.8

Median Age

53.6%

Male

46.4%

Female

8.7%

Foreign-Born

White 80.2%
African American 0.9%
Asian 0.3%
American Indian or Alaska Native 1.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 12.3%
Hispanic or Latino 13.3%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$74,688

Median Household Income

-2% vs state

$44,656

Per Capita Income

12.4%

Poverty Rate

1.0%

Unemployment Rate

How ZIP 57368 ranks nationally

Plankinton, SD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$74,688 Top 46% higher than 54% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 54.1%
Bachelor's Degree or Higher 27.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

489

Total Housing Units

418

Occupied Units

71

Vacant Units

2.47

Avg Household Size

Occupancy Type

Owner 68.7%
Renter 31.3%

$202,700

Median Home Value

+6% vs state

$940

Median Rent

1976

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 38 business establishments in ZIP 57368, employing approximately 335 people with a combined annual payroll of $13,171,000.

38

Businesses

335

Employees

$13.2M

Annual Payroll

6

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 8 21.1%
Retail trade 6 15.8%
Accommodation and food services 5 13.2%
Agriculture, forestry, fishing and hunting 4 10.5%
Construction 3 7.9%
Professional, scientific, and technical services 3 7.9%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

More ZIP Codes in Aurora County

57383 standard
White Lake, SD
Pop: 732
57359 standard
Letcher, SD
Pop: 649
57375 standard
Stickney, SD
Pop: 647

Related Areas

Aurora County Plankinton, SD South Dakota

Frequently Asked Questions

What county is ZIP code 57368 in? ▼
ZIP code 57368 (Plankinton) is located in Aurora County, South Dakota. Aurora County contains multiple ZIP codes, see the full list at /counties/aurora-sd.
What is the population of ZIP code 57368? ▼
ZIP code 57368 in Plankinton, SD has a population of 1,226 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57368? ▼
The median household income in ZIP 57368 is $74,688, which is 2% below the national average of $76,288.
What is the average home value in ZIP 57368? ▼
The median home value in ZIP 57368 is $202,700, which is 27% below the national average of $278,155.
What is the demographic makeup of ZIP 57368? ▼
The largest racial group in ZIP 57368 is White at 80.2%. Hispanic or Latino residents make up 13.3% of the population.
How many businesses are in ZIP code 57368? ▼
ZIP code 57368 has 38 business establishments employing approximately 335 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 57368? ▼
The top industries by establishment count in ZIP 57368 are: Health care and social assistance (8), Retail trade (6), Accommodation and food services (5). There are 6 industry sectors represented in total.
What is the education level in ZIP code 57368? ▼
In ZIP code 57368, 54.1% of residents aged 25+ have a high school diploma or higher, and 27.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 57368? ▼
In ZIP code 57368, approximately 68.7% of occupied housing units are owner-occupied and 31.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57368? ▼
The poverty rate in ZIP code 57368 is 12.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.