US ZIP Code
57437

Eureka, SD

McPherson County  ·  South Dakota

● Active
👥 1,278 Population ↓ 12% since 2019
💰 $42,917 Median HH Income
▼ 44% below avg ↑ 12% since 2019
🎂 60.4 Median Age ↑ 4% since 2019
🏠 $80,300 Median Home Value
▼ 71% below avg ↑ 44% since 2019
🎓 37.9% College Grads
≈ Avg
📊 0.0% Unemployment
▼ 100% below avg ↓ 100% since 2019
ZIP Code Details
ZIP Code57437
CityEureka
StateSouth Dakota (SD)
CountyMcPherson County
Area Code605
Elevation1,911 ft
Latitude45.789053
Longitude-99.624988
TimezoneChicago (DST)
FIPS46089
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 47.1% (602) Female 52.9% (676) ♀

Race & Ethnicity

White: 92.9%Hispanic: 1.3%Black: 3%Asian: 0.1%Other: 2.4%Race
White92.9%
Hispanic1.3%
Black3.0%
Asian0.1%
Other2.4%

Age Breakdown

Under 5
4%
5–17
12%
18–24
7%
25–44
14%
45–64
20%
65+
16%

Key Indicators

Median Age60.4 yrs ↑ 4% since 2019
Avg Household Size2.02
Below Poverty13.4% ▲ 34% above avg
College Grads37.9% ≈ Avg
Unemployment0.0% ▼ 100% below avg
No HS Diploma15 (1.8%)
HS Graduate306 (37.7%)
Some College120 (14.8%)
Associates63 (7.8%)
Bachelors125 (15.4%)
Graduate Degree183 (22.5%)

Education

No HS: 1.8%HS Grad: 37.7%Some College: 14.8%Associates: 7.8%Bachelors: 15.4%Graduate: 22.5%Edu
No HS1.8%
HS Grad37.7%
Some College14.8%
Associates7.8%
Bachelors15.4%
Graduate22.5%
Housing & Income

Housing Tenure

Owner: 80.7%Renter: 19.3%Tenure
Owner80.7%
Renter19.3%

Home Value Distribution

Under $50k
30%
$50k–100k
36%
$100k–150k
21%
$150k–200k
4%
$200k–300k
5%
$300k–500k
2%
Over $500k
2%

Financials

Median HH Income$42,917 ▼ 44% below avg ↑ 12% since 2019
Median Home Value$80,300 ▼ 71% below avg ↑ 44% since 2019
Home/Income Ratio1.9x (nat avg ~3.5x)
Median Rent$560/mo ↑ 14% since 2019
Total Units784
Vacant Units199
Avg HH Size2.02

Income Distribution

Under $25k
26%
$25k–50k
26%
$50k–75k
18%
$75k–100k
9%
$100k–150k
8%
$150k–200k
6%
Over $200k
6%
Employment & Commute

How People Get to Work

Drove Alone
85%
Walked
10%
Work From Home
5%

Commute Time

Under 15 min
64%
15–30 min
11%
30–45 min
14%
Over 45 min
11%
Housing Stock

Year Built

Before 1940
4%
1940s–1950s
16%
1960s–1970s
13%
1980s–1990s
4%
2000+
62%

Summary

Total Units784
Vacant199
Owner Occupied80.7%
Renter Occupied19.3%
Avg HH Size2.02
Frequently Asked Questions
ZIP code 57437 is in Eureka, SD, in McPherson County.
ZIP code 57437 is located in South Dakota (SD).
ZIP code 57437 is in McPherson County, SD.
ZIP 57437 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 57437 is 1,278 people (ACS 2023).
The median household income in ZIP code 57437 is $42,917 (ACS 2023).
The median home value in ZIP 57437 is $80,300 (ACS 2023).
About ZIP Code 57437

ZIP code 57437 is located in Eureka, South Dakota, within McPherson County. With a population of 1,278, this is a sparsely populated ZIP code with an older community — the median age is 60.4 years. Economically, 57437 is a working-class ZIP code: the median household income of $42,917 is below the national average.

Real estate in ZIP code 57437 represents one of the more affordable housing markets in the country. The median home value of $80,300 is well below the national average. Renters can expect to pay around $560 per month in median rent. Homeownership is strong here — 80.7% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 44% since 2019.

The population of 57437 is primarily White (92.88%). Residents are moderately educated — 37.9% hold a bachelor's degree or higher, which is near the national average. Poverty affects some residents at 13.4%. Household income has grown by 12% since 2019.

As in most parts of the country, driving alone is the dominant commute mode at 81%.

Overall, ZIP code 57437 in Eureka, SD is characterized as working-class, moderately educated, an older community, and predominantly owner-occupied. With 1,278 residents, a median household income of $42,917, and a median home value of $80,300, it offers a clear picture of life in this part of South Dakota.