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)
White12,97386.76%
Two or more races5623.76%
Native American4963.32%
Asian4523.02%
Black or African American2591.73%
Other race2031.36%
Native Hawaiian or Pacific Islander80.05%

White

Two or more races

Native American

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

24.6

Total

26

Male

23.8

Female

Clay County, South Dakota Adults

There are 12,372 adults, (1,775 of whom are seniors) in Clay County, South Dakota.

Clay County, South Dakota Age Dependency

41.1

Age Dependency Ratio

16.8

Old Age Dependency Ratio

24.4

Child Dependency Ratio

Clay County, South Dakota Sex Ratio

Female7,59150.77%
Male7,36249.23%

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
All5,4162.3351.148.9
Non Family2,6951.593070
Married2,0622.9380.819.2
Female4253.647.352.7
Male2343.1538.961.1

2.89

Average Family Size

2.33

Average Household Size

51.1%

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 Grade3424.66%
Associates Degree5958.11%
Bachelors Degree1,54021%
Graduate Degree1,39419.01%
High School Graduate2,07928.35%
Less Than 9th Grade1421.94%
Some College1,24216.93%

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
White6,5576,1622,609
2+ Races24024083
Native American22317220
Asian191153153
Black888846
Hispanic535352
Other Race12120

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

The highest rate of bachelors degrees is among hispanic people with a rate of 98.11%.

Clay County, South Dakota Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$47,263$49,426$42,560
Graduate Degree$59,759$61,667$59,089
High School Graduate$37,471$43,514$22,375
Less Than 9th Grade$32,981$40,395$29,046
Overall$44,224$50,407$35,551
Some College$37,150$53,983$34,035

$44,224

Average Earnings

$50,407

Average Male

$35,551

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

95.49% of Clay County, South Dakota residents speak only English, while 4.51% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 1.6% of the population.

Clay County, South Dakota Language

Clay County, South Dakota Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White10,7682,03318.88%
Other18617795.16%
Native46512927.74%
Asian40012631.5%
Hispanic26811743.66%
Multiple52510820.57%
Black2039747.78%

21.17%

Overall Poverty Rate

18.95%

Male Poverty Rate

23.42%

Female Poverty Rate

Poverty in Clay County, South Dakota

The race most likely to be in poverty in Clay County, South Dakota is Other, with 95.16% below the poverty level.

The race least likely to be in poverty in Clay County, South Dakota is White, with 18.88% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.87%. Among those working part-time, it was 41.64%, and for those that did not work, the poverty rate was 27.86%.

Clay County, South Dakota Poverty

rate

Rate
Poverty
Less Than 9th Grade23.04%
High School12.52%
Some College10.11%
Bachelors or Greater5.67%

Clay County, South Dakota Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed48.05%
Female Unemployed45.79%
Female Employed18.49%
Male Employed11.84%

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$89,497$107,157
Households$55,963$78,261
Married Families$101,328$-999,999,999
Non Families$35,485$47,065

mean

median

Income by Household Type

Clay County, South Dakota Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

33.5%

Overall Marriage Rate

34.1%

Male Marriage Rate

32.9%

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 Over 65, 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

647

Number of Veterans

593

Male Veterans

54

Female Veterans

War
Veterans
Vietnam200
Second Gulf War176
First Gulf War152
Korea71
World War II12

Clay County, South Dakota Veterans by War

count

Age Group
Veterans
35 to 54190
65 to 74162
75+158
55 to 6498
18 to 3439

Clay County, South Dakota Veterans by Age

count

Name
Veterans
% of Total
White6195.65%
Black146.31%
Native American144.31%

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

0%

Veteran Poverty Rate

26.57%

Veteran Disability Rate

Clay County, South Dakota Veterans by Education

LaborForceParticipation

67.6%

Labor Force Participation

61.8%

Employment Rate

8.2%

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

52.78%

Born in Clay County, South Dakota

96.11%

Native Born

3.89%

Foreign Born

3.06%

Non Citizen

0.83%

Naturalized

Place of Birth

96.11% of Clay County, South Dakota residents were born in the United States, with 52.78% having been born in South Dakota. 3.06% 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