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Eureka, SD

City in McPherson County, South Dakota.

Population

778

Land area

0.9sq mi

People per sq mi

834

ZIP codes

0

Eureka and its ZIP codes

Full map

Eureka at a glance

  • Eureka is about 70 times as dense as South Dakota as a whole.
  • Households here earn a median of $47,583 a year, 37% less than the South Dakota figure of $75,081.
  • A typical owner-occupied home is valued at $78,200 (70% below South Dakota) and median rent is $557 a month.

Local data for Eureka, SD

Counts from official public data

Housing and community stats

Eureka, SD, American Community Survey 2020-2024

Full profile

Median household income

$47,583

Poverty rate

15.2%

Median home value

$78,200

Median rent

$557/mo

Homeownership

81.8%

Bachelor's or higher

21.9%

Median age

63.1

Average commute

18.8 min

Largest reported origins and ancestries: German Americans (521), Russian Americans (107), Irish Americans (85).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for McPherson County. PPP loans are for Eureka.

Details

Unemployment rate

3.1%

Aug 2026, +0.3 pts in a year

Average annual pay

$44,396

554 jobs, 2025

Income per person

$76,160

BEA, 2024

Federal spending

$18.9M

FY 2026, $7,839 per person

McPherson County economyFederal spending

How people get to work

Eureka, SD, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone70.9%
  • Carpooled20.8%
  • Public transit0.0%
  • Walked8.0%
  • Bicycle0.0%
  • Taxi, ride-hailing, motorcycle or other0.0%
  • Worked from home0.3%

Average one-way commute: 18.8 minutes for people who do not work from home.

Environment and hazard risk

Eureka, SD, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: winter weather

Storm events since 1996

617

Countywide, mostly hail

July high / Jan low

82° / 2°F

20.2 inches of rain a year

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in Eureka, SD, CDC PLACES estimates

All 40 measures

Obesity

33.5%

U.S. 33.3% about the same

Diabetes

16.6%

U.S. 12.1% +4.5 pts

Smoking

15.0%

U.S. 12.8% +2.2 pts

Uninsured (18-64)

9.5%

U.S. 11.1% -1.6 pts

Cities near Eureka

NameDistanceLand area (sq mi)
HillsviewTown8.1 mi0.6
ArtasTown12 mi0.1
HosmerCity15 mi1
Venturia, NDCity16 mi0.1
Zeeland, NDCity17 mi0.3
Long LakeTown21 mi0.3
Ashley, NDCity22 mi0.6
Mound CityTown22 mi0.1
HerreidCity22 mi1.4
BowdleCity22 mi0.6
JavaTown22 mi0.5
Hague, NDCity25 mi0.3
RoscoeCity26 mi0.4
SelbyCity27 mi0.7

Frequently asked questions

What county is Eureka, SD in?
Eureka is in McPherson County, South Dakota.
What is the population of Eureka, SD?
About 778 people live in Eureka, based on American Community Survey 5-year estimates.
What cities are near Eureka?
Nearby places include Hillsview (8.1 mi), Artas (12 mi), Hosmer (15 mi), Venturia, ND (16 mi), Zeeland, ND (17 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023