Demographics of Codington County, South Dakota

Codington County, South Dakota had 29,562 people on July 1, 2025, by the Census Bureau’s estimate: +1,209 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.

Codington County, in four figures

29,562
Population: July 1, 2025, Vintage 2025 estimate.; +4.3%
Change since July 2020: +1,209 people.; 40.4 ±1.1
Median age: ACS 2020–⁠2024.; $72,727 ±$4,778
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.

Codington County, South Dakota's population grew 4.3% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Codington 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

Codington County, South Dakota's population grew 4.3% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Codington 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	28,353	100.0	100.0
2021	28,497	100.5	100.2
2022	28,756	101.4	100.7
2023	28,958	102.1	101.6
2024	29,270	103.2	102.5
2025	29,562	104.3	103.1

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Population of Codington 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	28,353	+31	+17	+3	+4
2021	28,497	+144	−27	+20	+131
2022	28,756	+259	+19	+52	+195
2023	28,958	+202	+62	+13	+127
2024	29,270	+312	+22	+30	+260
2025	29,562	+292	+18	−3	+277

Age, 2020–2024

The median age is 40.4 ±1.1: for men 39.1 ±1.2 and for women 42.1 ±1.0. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Codington County by age, ACS 2020–2024
Age	People	Share	South Dakota	United States
Under 5	1,547 ±111	5.4% ±0.4	6.3% ±0.1	5.6% ±<0.1
5 to 17	5,065 ±370	17.6% ±1.3	17.9% ±0.2	16.3% ±<0.1
18 to 24	2,529 ±270	8.8% ±0.9	9.3% ±0.4	9.1% ±<0.1
25 to 44	7,006 ±369	24.4% ±1.3	25.2% ±0.2	26.9% ±<0.1
45 to 64	6,995 ±351	24.3% ±1.2	23.3% ±0.2	24.8% ±<0.1
65 and over	5,625 ±442	19.6% ±1.5	18.0% ±0.3	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $72,727 ±$4,778, and income per person $39,825 ±$2,586, 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 Codington County by income, ACS 2020–2024
Household income	Households	Share	South Dakota	United States
Under $25,000	1,685 ±303	13.5% ±2.4	14.0% ±0.4	14.6% ±<0.1
$25,000 to $49,999	2,556 ±412	20.4% ±3.3	18.5% ±0.5	16.7% ±<0.1
$50,000 to $74,999	2,212 ±345	17.7% ±2.7	17.4% ±0.4	15.5% ±<0.1
$75,000 to $99,999	1,949 ±314	15.6% ±2.5	14.6% ±0.4	12.6% ±<0.1
$100,000 to $149,999	2,694 ±340	21.5% ±2.7	18.9% ±0.5	17.5% ±<0.1
$150,000 to $199,999	835 ±185	6.7% ±1.5	8.5% ±0.3	9.6% ±<0.1
$200,000 or more	595 ±161	4.8% ±1.3	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 Codington County by age, ACS 2020–2024
Age	Below poverty	Rate	South Dakota	United States
All ages	2,504 ±382	8.8% ±1.3	11.9% ±0.4	12.5% ±0.1
Under 18	414 ±150	6.3% ±2.3	14.3% ±0.6	16.1% ±0.1
18 to 59	1,527 ±297	10.6% ±2.0	11.8% ±0.5	11.6% ±0.1
60 and over	563 ±165	7.6% ±2.2	9.7% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Codington County, ACS 2020–2024
Measure	Codington County	South Dakota	United States
Housing units	13,533 ±63	408,584 ±422	143,775,355 ±10,234
Occupied	92.6% ±1.9	89.5% ±0.4	89.9% ±0.1
Vacant	7.4% ±2.0	10.5% ±0.4	10.1% ±0.1
Owner occupied	69.8% ±3.0	68.6% ±0.5	65.2% ±0.3
Renter occupied	30.2% ±3.2	31.4% ±0.5	34.8% ±0.1
Median home value	$237,700 ±$15,323	$257,400 ±$3,051	$332,700 ±$236
Median gross rent	$938 ±$46	$946 ±$11	$1,413 ±$2
Median year built	1978 ±3	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 Codington County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	South Dakota	United States
Hispanic or Latino	946 ±0	3.3% ±<0.1	4.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	25,997 ±181	90.4% ±0.6	79.8% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	198 ±80	0.7% ±0.3	2.1% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	87 to 265	0.3% to 0.9%	1.4% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	536 ±100	1.9% ±0.3	7.1% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 19	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 277	0% to 1.0%	0.3% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	792 ±169	2.8% ±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 Codington County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	South Dakota	United States
Born in the state	20,609 ±704	71.6% ±2.4	62.4% ±0.4	57.3% ±<0.1
Born in another state	7,584 ±695	26.4% ±2.4	32.9% ±0.4	26.9% ±<0.1
Born a citizen outside the states	0 to 431	0% to 1.5%	0.7% ±0.1	1.7% ±<0.1
Born abroad	372 ±157	1.3% ±0.5	4.0% ±0.2	14.1% ±<0.1
Naturalized citizens	75 to 327	0.3% to 1.1%	1.7% ±0.1	7.4% ±<0.1
Not citizens	171 ±75	0.6% ±0.3	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%.

Codington County among the counties of South Dakota

7th of 66 by population, July 2025. Every one is listed on the South Dakota page.

Counties of South Dakota near Codington County in population, July 2025
County	July 2025	Change since 2020
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%
Yankton County	23,635	+1.5%
Davison County	20,069	+0.5%
Beadle County	19,624	+2.4%
Hughes County	17,570	−0.9%

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