CensusEasy
COUNTY · 1990 CENSUS

Clay County

South Dakota · 13,186 residents · 412.022 sq mi
Time machine
COMPARE TO
Compare
The short version

Clay County has notably lower household income than the US average, with a median household income of $19,392. Population has held roughly steady since 2000. 36% of adults hold a bachelor's degree or higher, well above the national rate of 20%. Median home value is $47,800. At a median age of 24.0, residents skew younger than the country as a whole. 36% of adults hold a bachelor's degree, well above the US average, yet household income trails the national figure — a profile common to graduate-student tracts and academic hubs.

At a glance
Lower income
below the US median
US median: $30,130
Younger
median age 24.0
US median: 33.0
More educated
36% hold a bachelor's degree
US average: 20%
More affordable
home values down 15%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

13,186
−3%vs 2000
vs 13,537 in 2000
1990 – 2025
32 / sq mi
−3%vs 2000
vs 33 / sq mi in 2000
US average: 221
24.0
−4%vs 2000
vs 24.9 in 2000
US average: 33.0
Population, 19902024
13K14K14K15K15K1990201020202024Clay County
202415K
1990201020202024
Section 02

Income & economy

$19,392
−7%inflation adjusted, since 2000
vs $27,535 in 2000
US average: $30,130
1990 – 2024
$9,160
−37%vs 2000
vs $14,452 in 2000
US average: $14,340
24.6%
+3.4 ptsvs 2000
vs 21.2% in 2000
US average: 13.2%
Section 03

Housing

$47,800
−15%inflation adjusted, since 2000
vs $73,700 in 2000
US average: $93,722
1990 – 2024
$291
−13%inflation adjusted, since 2000
vs $440 in 2000
US average: $450
52.9%
−1.4 ptsvs 2000
vs 54.4% in 2000
47.1% rent
2.5
−8%vs 2000
vs 2.7 in 2000
1990 – 2024
RELATED:See current rent listings in Clay County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic92.3%(12,498)
Black0.9%(128)
Hispanic / Latino0.9%(120)
Asian1.9%(262)
Other0%
Diversity Score9.5%(1,291)
1990
White, non-Hispanic95.2%(12,547)
Black0.3%(40)
Hispanic / Latino0.8%(111)
Asian1.4%(180)
Other3.2%(419)
Diversity Score13.5%(1,786)
14
+42%vs 2000
vs 10 in 2000
1990 – 2024
Section 05

Education

36.3%
−2.4 ptsvs 2000
vs 38.7% in 2000
US average: 20.3%
High school or higher
84.4%
−5.2 ptsvs 2000
vs 89.5% in 2000
US average: 75.2%
19.5%
+2.1 ptsvs 2000
vs 17.4% in 2000
US average: 7.1%
Section 06

Commute & transportation

22.8 min
+67%vs 2000
vs 13.6 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Clay County

Head to head

Compare Clay County to nearby counties

Frequently asked

How many people live in Clay County, South Dakota?

Clay County, South Dakota has about 13,186 residents according to the 1990 Census.

What is the median household income in Clay County, South Dakota?

The typical household in Clay County, South Dakota earns about $19,392 a year. Half of households make more than that, and half make less.

Is Clay County, South Dakota expensive?

In Clay County, South Dakota, the median home is worth about $47,800, and the typical rent is about $291 a month.

How educated are people in Clay County, South Dakota?

About 36.3% of adults age 25 and over in Clay County, South Dakota hold a bachelor's degree or higher.

What is the poverty rate in Clay County, South Dakota?

About 24.6% of people in Clay County, South Dakota live below the federal poverty line.

Keep going

Explore from here

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →