Eureka is a city located in Campbell County and McPherson County South Dakota. Eureka has a 2024 population of 783. Eureka is currently declining at a rate of -0.63% annually and its population has decreased by -2.73% since the most recent census, which recorded a population of 805 in 2020.
The average household income in Eureka is $71,812 with a poverty rate of 20.6%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Eureka is 59.1 years, 55.6 years for males, and 59.7 years for females.
According to the most recent ACS, the racial composition of Eureka was:
White
Black or African American
Two or more races
Asian
Native American
Native Hawaiian or Pacific Islander
Other race
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 398 | 2.03 | 76.1 | 23.9 |
| Non Family | 228 | 1.02 | 59.2 | 40.8 |
| Married | 129 | 2.96 | 98.4 | 1.6 |
| Male | 24 | 3.46 | 100 | 0 |
| Female | 17 | 6.41 | 100 | 0 |
3.26
Average Family Size
2.03
Average Household Size
76.1%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among black people with a rate of 100%.
The highest rate of bachelors degrees is among native american people with a rate of 100%.
All
Male
Female
$48,500
Average Earnings
$51,518
Average Male
$36,250
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
90.44% of Eureka residents speak only English, while 9.56% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 8.87% of the population.
rate
20.6%
Overall Poverty Rate
13.73%
Male Poverty Rate
26.9%
Female Poverty Rate
The race most likely to be in poverty in Eureka is Asian, with 100% below the poverty level.
The race least likely to be in poverty in Eureka is White, with 14.71% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 7.26%. Among those working part-time, it was 28.35%, and for those that did not work, the poverty rate was 28.29%.
Married
Widowed
Divorced
Separated
NeverMarried
41.6%
Overall Marriage Rate
46.5%
Male Marriage Rate
37.2%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
4.55%
Veteran Poverty Rate
21.59%
Veteran Disability Rate
LaborForceParticipation
45.5%
Labor Force Participation
45.5%
Employment Rate
0%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
66.92%
Born in Eureka
97.58%
Native Born
2.42%
Foreign Born
1.76%
Non Citizen
0.66%
Naturalized
97.58% of Eureka residents were born in the United States, with 66.92% having been born in South Dakota. 1.76% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 755 | -6 | -0.79% |
| 2028 | 761 | -5 | -0.65% |
| 2027 | 766 | -6 | -0.78% |
| 2026 | 772 | -5 | -0.64% |
| 2025 | 777 | -6 | -0.77% |
| 2024 | 783 | -5 | -0.63% |
| 2023 | 788 | -6 | -0.76% |
| 2022 | 794 | -9 | -1.12% |
| 2021 | 803 | -2 | -0.25% |
| 2020 | 805 | -25 | -3.01% |
| 2019 | 830 | -4 | -0.48% |
| 2018 | 834 | 1 | 0.12% |
| 2017 | 833 | -3 | -0.36% |
| 2016 | 836 | 0 | 0% |
| 2015 | 836 | -9 | -1.07% |
| 2014 | 845 | -4 | -0.47% |
| 2013 | 849 | -3 | -0.35% |
| 2012 | 852 | -8 | -0.93% |
| 2011 | 860 | -4 | -0.46% |
| 2010 | 864 | 0 | 0% |