United States › South Dakota › Lyman County COUNTY
Lyman County South Dakota · 3,694 residents (2025 est.) · 1,642 sq mi
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The short version
Lyman County is home to 3,724 people in South Dakota. There are 2 people per square mile. 1% of people here were born outside the United States. The poverty rate is 23.7%, above the 12.5% national rate. Home values have more than tripled since 2000, reaching $165,800. 25% of adults hold a bachelor's degree or higher.
At a glance
Lower income
below the US median
US median: $82,259
Younger
median age 36.1
US median: 38.9
Less educated
25% hold a bachelor's degree
US average: 36%
Less affordable
home values up 109%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 3,895 in 2000
3,694 in 2025 (Census Bureau estimate)
from 2 / sq mi in 2009
US average: 281
from 34.5 in 2000
US average: 38.9
Population, 1990 – 2024
4K 4K 4K 4K 4K 1990 2000 2010 2020 2024 Lyman County Age distribution, 2024
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Section 02
Income & economy $67,143
+29%inflation adjusted, since 2000
from $28,509 in 2000
US average: $82,259
from $13,862 in 2000
US average: $44,673
Households earning $100K+
from 14.0% in 2009
US average: 53.3%
from 24.3% in 2000
US average: 12.5%
from 0.370 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 22.5%
Public administration 2.7%
Transportation & warehousing 2%
Professional, scientific, technical 2%
Arts, entertainment, food 1.8%
Education & health services 0.6%
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$165,800
+109%inflation adjusted, since 2000
from $43,500 in 2000
US average: $376,019
$651
+24%inflation adjusted, since 2000
from $288 in 2000
US average: $1,442
from 69.4% in 2000
30.1% rent
from 16.8% in 2009
US average: 10.0%
3.07 people
+13%since 2009
from 2.72 people in 2009
US average: 2.54
from 11.1% in 2009
US average: 22.9%
from 13.9% in 2009
US average: 47.4%
from 1.9 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 64.5%(2,512)
Hispanic / Latino 0.5%(18)
2024
White, non-Hispanic 57.1%(2,127)
Hispanic / Latino 1.2%(44)
from 60 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 89 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 12 more ancestry groups with data from 15.9% in 2000
US average: 35.6%
High school or higher
from 81.1% in 2000
US average: 89.6%
from 4.1% in 2000
US average: 14.0%
Section 06
Commute & transportation from 14.1 min in 2000
US average: 26.5
from 70.4% in 2009
US average: 68.9%
from 6.1% in 2009
US average: 8.5%
from 1.6% in 2009
US average: 3.2%
from 14.8% in 2009
US average: 15.0%
from 5.8% in 2009
US average: 2.4%
from 0.6% in 2009
US average: 0.4%
from 4.8% in 2009
US average: 8.3%
Section 07
Work & employment from 12.1% in 2011
US average: 5.2%
from 70.8% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 77.8% in 2020
US average: 74.6%
from 25.3% in 2009
US average: 13.1%
from 32.5% in 2009
US average: 42.5%
Section 08
People & community from 0.4% in 2009
US average: 14.1%
from 13.4% in 2009
US average: 6.2%
from 12.2% in 2012
US average: 13.3%
from 22.5% in 2013
US average: 8.4%
from 67.4% in 2017
US average: 91.0%
Computer in household
from 84.4% in 2020
US average: 95.5%
from 93.4% in 2020
US average: 87.7%
from 94.1% in 2016
US average: 77.7%
from 0.7% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 22.5% in 2013
US average: 8.4%
from 37.6% in 2020
US average: 54.8%
Direct-purchase
from 16.1% in 2020
US average: 13.8%
from 17.4% in 2020
US average: 18.4%
from 25.8% in 2020
US average: 20.9%
VA health care
from 2.6% in 2020
US average: 2.2%
Any private
from 54.5% in 2020
US average: 67.1%
Any public
from 40.1% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 10.9%(15)
Gulf War (1990s) 13.1%(18)
Share of the 137 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Lyman County Head to head
Compare Lyman County to nearby counties LYMAN COUNTY VS
Buffalo County
Income $47,045 −30%
Home value $117,800 −29%
Population 1,802 −51%
SEE FULL COMPARISON →
LYMAN COUNTY VS
Hughes County
Income $81,395 +21%
Home value $242,000 +46%
Population 17,570 +376%
SEE FULL COMPARISON →
LYMAN COUNTY VS
Tripp County
Income $58,987 −12%
Home value $132,900 −20%
Population 5,708 +55%
SEE FULL COMPARISON →
LYMAN COUNTY VS
Brule County
Income $73,720 +10%
Home value $216,800 +31%
Population 5,278 +43%
SEE FULL COMPARISON →
Frequently asked
How many people live in Lyman County, South Dakota? Lyman County, South Dakota has about 3,724 residents according to the 2024 American Community Survey.
What is the median household income in Lyman County, South Dakota? The typical household in Lyman County, South Dakota earns about $67,143 a year. Half of households make more than that, and half make less.
Is Lyman County, South Dakota expensive? In Lyman County, South Dakota, the median home is worth about $165,800, and the typical rent is about $651 a month.
How educated are people in Lyman County, South Dakota? About 24.5% of adults age 25 and over in Lyman County, South Dakota hold a bachelor's degree or higher.
What is the poverty rate in Lyman County, South Dakota? About 23.7% of people in Lyman County, South Dakota live below the federal poverty line.
Has Lyman County, South Dakota grown since 1990? Yes, Lyman County, South Dakota has grown since 1990. The population has added about 86 residents, a change of about 2 percent over that period.
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