Clay County, South Dakota Population 2024

15,561

Clay County, South Dakota's estimated 2024 population is 15,561 with a growth rate of 0.84% in the past year according to the most recent United States census data. Clay County, South Dakota is the 14th largest county in South Dakota. The 2010 population was 13,830 and has seen a growth of 12.52% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202916,2111300.81%
202816,0811300.81%
202715,9511300.82%
202615,8211300.83%
202515,6911300.84%
202415,5611300.84%
202315,4311300.85%
202215,3011360.9%
202115,1651651.1%
202015,0009046.41%
201914,0961110.79%
201813,985-90-0.64%
201714,075950.68%
201613,9801821.32%
201513,798-109-0.78%
201413,907-7-0.05%
201313,914-163-1.16%
201214,077840.6%
201113,9931631.18%
201013,83000%
199013,186-503-3.67%
198013,6897665.93%
197012,9232,11319.55%
196010,810-183-1.66%
195010,9931,40114.61%
19409,592-496-4.92%
193010,0884344.5%
19209,65494310.83%
19108,711-605-6.49%
19009,3161,80724.06%
18907,5092,50850.15%
18805,0012,38090.81%
18702,621-13,590-83.83%
2024 Growth Rate
0.84% (130)
County Website
Clay County
2020 Population
15,000
Area
412 mi²
Density
38 people/mi²
Growth Since 2020
3.74% (561)
Founded
1862

Population by Race

Race
Population
Percentage (of total)
White13,12786.74%
Native American6054%
Two or more races5973.95%
Asian4573.02%
Black or African American3042.01%
Other race300.2%
Native Hawaiian or Pacific Islander130.09%

White

Native American

Two or more races

Asian

Black or African American

Other race

Native Hawaiian or Pacific Islander

Clay County, South Dakota Population by Race

Clay County, South Dakota Population Pyramid 2024

Clay County, South Dakota Median Age

24.5

Total

25.7

Male

23.9

Female

Clay County, South Dakota Adults

There are 12,467 adults, (1,843 of whom are seniors) in Clay County, South Dakota.

Clay County, South Dakota Age Dependency

42.4

Age Dependency Ratio

17.3

Old Age Dependency Ratio

25.1

Child Dependency Ratio

Clay County, South Dakota Sex Ratio

Female7,64050.49%
Male7,49349.51%

Clay County, South Dakota Population by Age

Clay County, South Dakota Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5,5612.2851.848.2
Non Family2,8681.5225.574.5
Married2,1552.9685.614.4
Female3823.5758.941.1
Male1563.7449.450.6

2.95

Average Family Size

2.28

Average Household Size

51.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Clay County, South Dakota Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade3024.08%
Associates Degree5887.94%
Bachelors Degree1,82824.7%
Graduate Degree1,57321.25%
High School Graduate1,92025.94%
Less Than 9th Grade1492.01%
Some College1,04114.07%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Clay County, South Dakota Educational Attainment by Sex (over 25)

Clay County, South Dakota Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White6,7246,3453,085
2+ Races288271126
Native American19515463
Hispanic135135106
Black878735
Asian816767
Other Race110

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 82.72%.

Clay County, South Dakota Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$48,825$52,227$42,679
Graduate Degree$63,580$70,094$59,516
High School Graduate$38,833$45,813$22,064
Less Than 9th Grade$34,306$33,938$35,114
Overall$46,501$53,887$37,222
Some College$40,412$57,500$35,891

$46,501

Average Earnings

$53,887

Average Male

$37,222

Average Female

Clay County, South Dakota Earnings by Educational Attainment

Clay County, South Dakota Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Clay County, South Dakota Language

94.37% of Clay County, South Dakota residents speak only English, while 5.63% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 1.74% of the population.

Clay County, South Dakota Language

Clay County, South Dakota Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White10,8782,00118.39%
Asian41625561.3%
Black26712145.32%
Native5576812.21%
Multiple5286412.12%
Other11654.55%

19.83%

Overall Poverty Rate

19.71%

Male Poverty Rate

19.96%

Female Poverty Rate

Poverty in Clay County, South Dakota

The race most likely to be in poverty in Clay County, South Dakota is Asian, with 61.3% below the poverty level.

The race least likely to be in poverty in Clay County, South Dakota is Multiple, with 12.12% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.21%. Among those working part-time, it was 39.55%, and for those that did not work, the poverty rate was 30.02%.

Clay County, South Dakota Poverty

rate

Rate
Poverty
Less Than 9th Grade25.12%
High School10.89%
Some College9.54%
Bachelors or Greater9.31%

Clay County, South Dakota Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed59.48%
Male Unemployed51.74%
Female Employed15.79%
Male Employed13.72%

Clay County, South Dakota Poverty Rate by Employment Status and Sex

Clay County, South Dakota Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$96,029$109,742
Households$58,794$76,464
Married Families$105,756$-999,999,999
Non Families$34,722$43,445

mean

median

Income by Household Type

Clay County, South Dakota Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

34.0%

Overall Marriage Rate

33.2%

Male Marriage Rate

34.8%

Female Marriage Rate

Clay County, South Dakota Married by Age and Sex

male

female

Clay County, South Dakota Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Clay County, South Dakota Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Clay County, South Dakota Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

575

Number of Veterans

531

Male Veterans

44

Female Veterans

War
Veterans
Vietnam157
Second Gulf War156
First Gulf War132
Korea64
World War II12

Clay County, South Dakota Veterans by War

count

Age Group
Veterans
75+156
65 to 74154
35 to 54149
55 to 6460
18 to 3456

Clay County, South Dakota Veterans by Age

count

Name
Veterans
% of Total
White5294.79%
Black3013.1%
Native American165.19%

Clay County, South Dakota Veterans by Race

Clay County, South Dakota Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

4.86%

Veteran Poverty Rate

18.38%

Veteran Disability Rate

Clay County, South Dakota Veterans by Education

LaborForceParticipation

66.8%

Labor Force Participation

61%

Employment Rate

8.4%

Unemployment Rate

Clay County, South Dakota Employment by Age

LaborForceParticipation

Clay County, South Dakota Employment by Race

LaborForceParticipation

Clay County, South Dakota Employment by Education

Origin of Non-Citizens

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.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

53.79%

Born in Clay County, South Dakota

95.1%

Native Born

4.9%

Foreign Born

3.86%

Non Citizen

1.04%

Naturalized

Place of Birth

95.1% of Clay County, South Dakota residents were born in the United States, with 53.79% having been born in South Dakota. 3.86% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Clay County, South Dakota Place of Birth

Sources