Demographics of Lincoln County, South Dakota

Lincoln County, South Dakota had 77,145 people on July 1, 2025, by the Census Bureau’s estimate: +11,495 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Lincoln County, in four figures

77,145
Population: July 1, 2025, Vintage 2025 estimate.; +17.5%
Change since July 2020: +11,495 people.; 35.9 ±0.3
Median age: ACS 2020–⁠2024.; $99,166 ±$2,500
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Lincoln County, South Dakota's population grew 17.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Lincoln County, South Dakota's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Lincoln County, South Dakota's population grew 17.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Lincoln County, South Dakota's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	65,650	100.0	100.0
2021	68,010	103.6	100.2
2022	70,957	108.1	100.7
2023	72,813	110.9	101.6
2024	75,123	114.4	102.5
2025	77,145	117.5	103.1

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Population of Lincoln County, South Dakota on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	65,650	+491	+144	+1	+364
2021	68,010	+2,360	+402	+48	+2,011
2022	70,957	+2,947	+433	+121	+2,274
2023	72,813	+1,856	+143	+94	+1,575
2024	75,123	+2,310	+430	+66	+1,782
2025	77,145	+2,022	+449	+14	+1,563

Age, 2020–2024

The median age is 35.9 ±0.3: for men 35.5 ±0.4 and for women 36.2 ±0.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Lincoln County by age, ACS 2020–2024
Age	People	Share	South Dakota	United States
Under 5	4,411 ±175	6.2% ±0.2	6.3% ±0.1	5.6% ±<0.1
5 to 17	14,280 ±619	20.2% ±0.9	17.9% ±0.2	16.3% ±<0.1
18 to 24	5,462 ±444	7.7% ±0.6	9.3% ±0.4	9.1% ±<0.1
25 to 44	20,631 ±736	29.2% ±1.0	25.2% ±0.2	26.9% ±<0.1
45 to 64	15,488 ±620	21.9% ±0.9	23.3% ±0.2	24.8% ±<0.1
65 and over	10,366 ±603	14.7% ±0.9	18.0% ±0.3	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $99,166 ±$2,500, and income per person $52,585 ±$2,806, in 2024 dollars. The median is $75,081 ±$888 in South Dakota and $80,734 ±$166 in the United States.

Households by income

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Households in Lincoln County by income, ACS 2020–2024
Household income	Households	Share	South Dakota	United States
Under $25,000	1,752 ±360	6.3% ±1.3	14.0% ±0.4	14.6% ±<0.1
$25,000 to $49,999	3,723 ±546	13.4% ±2.0	18.5% ±0.5	16.7% ±<0.1
$50,000 to $74,999	4,128 ±477	14.8% ±1.7	17.4% ±0.4	15.5% ±<0.1
$75,000 to $99,999	4,550 ±439	16.3% ±1.6	14.6% ±0.4	12.6% ±<0.1
$100,000 to $149,999	6,396 ±669	22.9% ±2.4	18.9% ±0.5	17.5% ±<0.1
$150,000 to $199,999	3,628 ±448	13.0% ±1.6	8.5% ±0.3	9.6% ±<0.1
$200,000 or more	3,702 ±442	13.3% ±1.6	8.1% ±0.4	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Lincoln County by age, ACS 2020–2024
Age	Below poverty	Rate	South Dakota	United States
All ages	3,919 ±1,070	5.6% ±1.5	11.9% ±0.4	12.5% ±0.1
Under 18	1,277 ±476	6.9% ±2.5	14.3% ±0.6	16.1% ±0.1
18 to 59	1,865 ±486	4.9% ±1.3	11.8% ±0.5	11.6% ±0.1
60 and over	777 ±327	5.6% ±2.3	9.7% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Lincoln County, ACS 2020–2024
Measure	Lincoln County	South Dakota	United States
Housing units	28,710 ±52	408,584 ±422	143,775,355 ±10,234
Occupied	97.1% ±0.9	89.5% ±0.4	89.9% ±0.1
Vacant	2.9% ±0.9	10.5% ±0.4	10.1% ±0.1
Owner occupied	71.2% ±1.9	68.6% ±0.5	65.2% ±0.3
Renter occupied	28.8% ±2.2	31.4% ±0.5	34.8% ±0.1
Median home value	$348,300 ±$9,955	$257,400 ±$3,051	$332,700 ±$236
Median gross rent	$1,260 ±$43	$946 ±$11	$1,413 ±$2
Median year built	2005 ±1	1980 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Lincoln County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	South Dakota	United States
Hispanic or Latino	2,226 ±0	3.2% ±<0.1	4.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	62,872 ±381	89.0% ±0.5	79.8% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	1,616 ±314	2.3% ±0.4	2.1% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	1,217 ±216	1.7% ±0.3	1.4% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	212 ±80	0.3% ±0.1	7.1% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 24	0% to < 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	72 to 700	0.1% to 1.0%	0.3% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	2,109 ±436	3.0% ±0.6	4.4% ±0.2	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Lincoln County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	South Dakota	United States
Born in the state	42,236 ±1,166	59.8% ±1.7	62.4% ±0.4	57.3% ±<0.1
Born in another state	24,814 ±1,144	35.1% ±1.6	32.9% ±0.4	26.9% ±<0.1
Born a citizen outside the states	58 to 222	0.1% to 0.3%	0.7% ±0.1	1.7% ±<0.1
Born abroad	3,448 ±839	4.9% ±1.2	4.0% ±0.2	14.1% ±<0.1
Naturalized citizens	1,757 ±510	2.5% ±0.7	1.7% ±0.1	7.4% ±<0.1
Not citizens	1,691 ±675	2.4% ±1.0	2.3% ±0.2	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Lincoln County among the counties of South Dakota

3rd of 66 by population, July 2025. Every one is listed on the South Dakota page.

Counties of South Dakota near Lincoln County in population, July 2025
County	July 2025	Change since 2020
Minnehaha County	212,691	+7.6%
Pennington County	116,792	+6.6%
Lincoln County	77,145	+17.5%
Brookings County	37,635	+9.6%
Brown County	37,561	−1.7%
Meade County	30,711	+2.7%
Codington County	29,562	+4.3%
Lawrence County	29,459	+14.0%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026