PlainZIP

Eureka, SD · standard

ZIP Code 57437

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

1,286
1/sq mi
$49,276
Median income
$86,700
Median home value
20.8%
Bachelor's or higher

The verdict

Eureka pairs one of the lowest household incomes in the country with among the most affordable home values nationally, in a rural, homeowner-dominated area.

13th pct
household income, US ZIPs
6th pct
home value, US ZIPs
1
people per sq mi
82%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57437 against every reporting US ZIP.

ZIP code 57437 is a sparsely populated ZIP (a standard USPS delivery area) in Eureka, McPherson County, South Dakota, home to just 1,286 residents across 1428.9 square miles, a density of 1 people per square mile, in the Chicago time zone.

ZIP 57437 reports a modest median household income of $49,276 (36% below the South Dakota average), while per-capita income is $51,925. Local economic indicators show a 12.8% poverty rate alongside 0.2% unemployment. Median home value sits at $86,700 (55% below the state average), median rent at $566 a month, and owner-occupancy at 81.7%.

Educational attainment sits below the national norm: 20.8% of adults hold a bachelor's degree or higher, the median age is 63.3, and the average commute is -. South Dakota and national benchmarks, shown above, are the best way to contextualize 57437, not the raw numbers alone.

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 57437

Top 5 sectors by establishment count in Eureka, SD

Which industries have the most business establishments in ZIP 57437.

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 57437, Eureka, 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

1,286

Population

1428.9

Area (sq mi)

1

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 57437?

63.3

Median Age

47.7%

Male

52.3%

Female

0.7%

Foreign-Born

White 94.3%
African American 0.0%
Asian 0.1%
American Indian or Alaska Native 0.3%
Native Hawaiian or Pacific Islander 0.4%
Two or More Ethnicities 4.9%
Hispanic or Latino 0.2%

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?

$49,276

Median Household Income

-36% vs state

$51,925

Per Capita Income

12.8%

Poverty Rate

0.2%

Unemployment Rate

How ZIP 57437 ranks nationally

Eureka, SD household income vs. every US ZIP code

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

$49,276 13th percentile higher than 13% 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%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $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 62.1%
Bachelor's Degree or Higher 20.8%

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

What does housing look like?

717

Total Housing Units

556

Occupied Units

161

Vacant Units

1.75

Avg Household Size

Occupancy Type

Owner 81.7%
Renter 18.3%

$86,700

Median Home Value

-55% vs state

$566

Median Rent

1961

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 53 business establishments in ZIP 57437, employing approximately 282 people with a combined annual payroll of $10,871,000.

53

Businesses

282

Employees

$10.9M

Annual Payroll

6

Industry Sectors

Industry Establishments % of Total
Retail trade 8 15.1%
Health care and social assistance 8 15.1%
Other services (except public administration) 8 15.1%
Construction 7 13.2%
Manufacturing 4 7.5%
Finance and insurance 3 5.7%

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

More ZIP Codes in McPherson County

57456 standard
Leola, SD
Pop: 862
58439 standard
Forbes, ND
Pop: 310
57457 standard
Long Lake, SD
Pop: 90

Related Areas

McPherson County Eureka, SD South Dakota

Frequently Asked Questions

What county is ZIP code 57437 in? ▼
ZIP code 57437 (Eureka) is located in McPherson County, South Dakota. McPherson County contains multiple ZIP codes, see the full list at /counties/mcpherson-sd.
What is the population of ZIP code 57437? ▼
ZIP code 57437 in Eureka, SD has a population of 1,286 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57437? ▼
The median household income in ZIP 57437 is $49,276, which is 35% below the national average of $76,288.
What is the average home value in ZIP 57437? ▼
The median home value in ZIP 57437 is $86,700, which is 69% below the national average of $278,155.
What is the demographic makeup of ZIP 57437? ▼
The largest racial group in ZIP 57437 is White at 94.3%. Hispanic or Latino residents make up 0.2% of the population.
How many businesses are in ZIP code 57437? ▼
ZIP code 57437 has 53 business establishments employing approximately 282 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 57437? ▼
The top industries by establishment count in ZIP 57437 are: Retail trade (8), Health care and social assistance (8), Other services (except public administration) (8). There are 6 industry sectors represented in total.
What is the education level in ZIP code 57437? ▼
In ZIP code 57437, 62.1% of residents aged 25+ have a high school diploma or higher, and 20.8% 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 57437? ▼
In ZIP code 57437, approximately 81.7% of occupied housing units are owner-occupied and 18.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57437? ▼
The poverty rate in ZIP code 57437 is 12.8% 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.