Lake Andes, SD

City in Charles Mix County, SD, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

901

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

years ∙ half population younger than 30, half older

Diversity Index

67.7%

chance two random people differ in race and ethnicity

Nativity

0.7%

foreign-born population

99.3%Native

0.7% Foreign-born

Geographic Context

Location, size, and surroundings

About

Lake Andes is a city within Charles Mix County, South Dakota, United States.

Location

City in Charles Mix County, SD, US

Co-ordinates

DEC43.156041° N, 98.537287° W

DMS43° 09′ 21.75″ N, 98° 32′ 14.23″ W

Population Density & area

1,208/sq mi (466.4/km²)

Total Area

0.767 sq mi (1.987 km²)

Land Area

0.746 sq mi (1.932 km²) · 97.2%

Water Area

0.021 sq mi (0.055 km²) · 2.8%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

49.5% male

Male 49.5%

Female 50.5%

males per 100 females

Lake Andes 98

Charles Mix County 102.6

South Dakota 103.1

Nativity

0.7%

foreign-born population

99.3%Native

0.7% Foreign-born

% Foreign-born

Lake Andes 0.7%

Charles Mix County 0.8%

South Dakota 4%

Age Distribution

How the population is spread across age groups

Median Age

years ∙ half population younger than 30, half older

Lake Andes

Charles Mix County

South Dakota

Dependency ratio

115

dependents per 100 working-age adults

Lake Andes 115

Charles Mix County 98.7

South Dakota 73

AGE DISTRIBUTION

Distribution of age group

Median age

	Lake Andes	Charles Mix County	South Dakota
Age Group
Children (Under 18)	38.4%	30.7%	24.2%
Working age (18-64)	46.5%	50.3%	57.8%
Senior (65+)	15.1%	19%	18%
Dependency ratio
Total dependency ratio	115	98.7	73
Child dependency ratio	82.6	61	41.9
Old-age dependency ratio	32.5	37.7	31.1

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

36.7%

Black

0.3%

Asian

0.1%

Hispanic

9.5%

Other

53.4%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

67.7%

chance two random people differ in race and ethnicity

Lake Andes 67.7%

Charles Mix County 51.7%

South Dakota 35.3%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Lake Andes population

Racial and ethnic composition — Lake Andes vs Charles Mix County vs South Dakota. Source: ACS 2020-2024 5-Year Estimates.
	Lake Andes	Charles Mix County	South Dakota
Hispanic or Latino	9.5%	3%	4.8%
Mexican	9.2%	2%	2.6%
Puerto Rican	0.3%	0.5%	0.4%
Cuban	0%	0.3%	0.1%
Other Hispanic / Latino	0%	0.2%	1.7%
Not Hispanic or Latino	90.5%	97%	95.2%
One race	77.5%	91.5%	90.8%
White	36.7%	63.7%	79.8%
Black or African American	0.3%	0.2%	2.1%
American Indian and Alaska Native	40.3%	27%	7.1%
Asian	0.1%	0.6%	1.4%
Native Hawaiian and Other Pacific Islander	0%	0%	0%
Some Other Race	0%	0%	0.3%
Two or more races (Multiracial)	13%	5.5%	4.4%

Household & Families Composition

Household size, type, and family structure

Household structure

50.8% family

Family 50.8%

Non family 49.2%

% family households

Lake Andes 50.8%

Charles Mix County 64.3%

South Dakota 61.3%

Average household size

3.53

persons per household

Lake Andes

3.53

Charles Mix County

2.95

South Dakota

2.39

Household & Family COMPOSITION

Households

Percentage of Lake Andes population

	Lake Andes	Charles Mix County	South Dakota
Total households	238	3,032	365,544
Average houshold size	3.53	2.95	2.39
Family households	121	1,950	224,058
Average family size	5.5	3.81	3.05
Married couple family	71	1,480	176,597
Other families	50	470	47,461
Male householder	14	167	17,711
Female householder	36	303	29,750
Non-family households	117	1,082	141,486
One-person households	105	957	116,755
Male householder	66	581	57,880
Senior (65+) living alone	17	146	17,403
Female householder	39	376	58,875
Senior (65+) living alone	16	224	29,381
Other living arrangements	12	125	24,731

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

319

housing units

Lake Andes 319

Charles Mix County 3,668

South Dakota 408,584

Occupancy status

74.6% occupied

Occupied 74.6%

Vacant 25.4%

vacancy rate

Lake Andes 25.4%

Charles Mix County 17.3%

South Dakota 10.5%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

82.2%

Single family houses

82.2%

Apartments in multi-unit structures

14.1%

Mobile homes

3.8%

Boat, RV, van, etc

Median Year Built

1957

Half of houses were built before 1957, and half after.

Historic ∙ 1939 or earlier

42%

Postwar & mid-century ∙ 1940 - 1969

33%

Late 20th century ∙ 1970 - 1999

21.1%

Modern ∙ 2000 or later

4.1%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Lake Andes	Charles Mix County	South Dakota
Rooms per unit
Median rooms	5.2	6.2	5.9
1–3 rooms	14.5%	8.4%	13.6%
4–6 rooms	57.1%	47.2%	44.6%
7+ rooms	28.5%	44.5%	41.8%
Bedrooms
No bedroom / studio	1.3%	0.7%	1.9%
1 bedroom	11%	9.1%	10.1%
2 bedrooms	28.2%	19.6%	26.4%
3 bedrooms	36.7%	35.1%	32%
4+ bedrooms	22.9%	35.6%	29.6%
At a glance
Median year built	1957	1972	1982
Total housing units	319	3,668	408,584

Occupancy Profile

Who is inside and how they use it

Homeownership

70.6% owners

Renter-occupied 29.4%

Owner-occupied 70.6%

homeownership rate

Lake Andes 70.6%

Charles Mix County 72.3%

South Dakota 68.6%

Average household size

3.81

Owner-occupied

2.86

Renter-occupied

owner-occupied average size

Lake Andes 3.81

Charles Mix County 2.97

South Dakota 2.54

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Lake Andes	Charles Mix County	South Dakota
Total occupied units	238	3,032	365,544
Year moved in
2020 or later	15.1%	14.2%	25.4%
2010 to 2019	38.2%	37.1%	39.7%
2000 to 2009	25.2%	19.6%	16.2%
1999 or earlier	21.5%	29.1%	18.7%
Occupants per room
1.00 or fewer	95.4%	95.4%	97.7%
1.01 to 1.50	4.6%	3.9%	1.6%
1.51 or more	0%	0.7%	0.7%
Vehicles availability
No vehicles	5.5%	5.2%	5.2%
1 vehicle	37.8%	20.8%	28.4%
2 vehicles	31.5%	37.7%	36.3%
3 or more vehicles	25.2%	36.2%	30.1%
House heating fuel used
Gas	40%	49.5%	63.1%
Electricity	42.9%	39.3%	32.4%
Solar	0%	0.2%	0%
Fuel oil, kerosene etc	11.8%	5.4%	1.3%
All other fuels	2.9%	4.7%	2.4%
No fuel used	2.5%	1%	0.8%
Selected characteristics
Lacking complete plumbing	0%	0.3%	0.5%
Lacking complete kitchen	2.5%	0.9%	0.9%
No telephone service available	10.9%	1.7%	1.1%

Housing Value

What owner-occupied units are worth

Median home value

$58,800

owner-occupied units

Median value(USD)

Lake Andes

$58,800

Charles Mix County

$170,600

South Dakota

$257,400

Housing Cost Burden

19.5%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

19.5%

Owners without a mortgage

19%

Renters

51.3%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Lake Andes	Charles Mix County	South Dakota
Property value
Median Value	$58,800	$170,600	$257,400
Under $100,000	75.6%	26.8%	16.1%
$100,000 - $200,000	15.5%	26.8%	19.5%
$200,000 - $300,000	7.7%	21.5%	24.4%
$300,000 - $500,000	1.2%	17.1%	26%
$500,000 - $1,000,000	0%	6.8%	12.1%
$1,000,000 and more	0%	1%	1.8%
Owner-occupied households
With a mortgage	27.4%	33.8%	54.5%
Without a mortgage	72.6%	66.2%	45.5%
Median monthly owner costs
With a mortgage	$1,136	$1,751	$1,680
Without a mortgage	$478	$543	$617
Gross rent
Median rent	$762	$704	$946

Education Profile

How educated is the community and how education pays off

Adults with a college degree

27%

of adults 25+ with a bachelor's degree or higher

Lake Andes 27%

Charles Mix County 25.7%

South Dakota 31.9%

Adults without a high school diploma

17.5%

of adults (25+) without a high school diploma

Lake Andes 17.5%

Charles Mix County 9%

South Dakota 6.8%

School Enrollment

Who is enrolled in school and at what level

School enrollment

302

population (age 3+) enrolled in school

Nursery / Preschool

1.7%

K–12

95.7%

College / Undergraduate

1.7%

Graduate / Professional

College-going rate (18-24 yr olds)

6.5%

of 18-24-year-olds in college or graduate school

Lake Andes

6.5%

Charles Mix County

19%

South Dakota

35.1%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Lake Andes	Charles Mix County	South Dakota
Total enrolled (age 3+)	302	2,547	216,085
Nursery / preschool	1.7%	7.3%	6.1%
K–12	95.7%	82.8%	73%
Kindergarten	7.9%	7.1%	5.6%
Elementary: Grades 1–4	37.1%	27.7%	22.3%
Elementary: Grades 5–8	21.2%	24.8%	22.8%
High School: Grades 9–12	29.5%	23.2%	22.3%
College or graduate school	2.6%	9.9%	20.9%
College, undergraduate	1.7%	7.9%	17.1%
Graduate, professional school	1%	2%	3.8%
College-going rate · 18-24 yr olds	6.5%	19%	35.1%
School type
Public school	93.7%	88.7%	86.9%
Private school	6.3%	11.3%	13.1%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

493

population 25 years and over

Total adults (25+)

Less than 9th grade

5.7%

9th-12th, no diploma

11.8%

HS graduate

27.4%

Some college no degree

17.4%

Associates degree

10.8%

Bachelors degree

19.9%

Graduate or professional degree

7.1%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

85.7% · 14.3%

9th-12th, no diploma

65.5% · 34.5%

HS graduate

50.4% · 49.6%

Some college no degree

50% · 50%

Associates degree

30.2% · 69.8%

Bachelors degree

35.7% · 64.3%

Graduate or professional degree

22.9% · 77.1%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Lake Andes	Charles Mix County	South Dakota
Population (25+)	493	5,708	603,746
Less than 9th grade	5.7%	3.6%	2.6%
9th–12th, no diploma	11.8%	5.4%	4.2%
High school diploma or GED	27.4%	34.5%	29%
Some college, no degree	17.4%	16.1%	19.9%
Associate's degree	10.8%	14.7%	12.3%
Bachelor's degree or higher	27%	25.7%	31.9%
Bachelor's degree	19.9%	18.4%	21.9%
Graduate or professional	7.1%	7.3%	10%
High School or higher	82.6%	91%	93.2%

Earnings by education level

percentage as applicable

Median Earnings

$36,339

Median earnings for adults 25+, by level

Less than HS graduate

$21,313

HS graduate

$30,250

Some college or associates

$31,250

Bachelors degree

$39,018

Graduate or professional degree

$63,750

Poverty Rate

5.4%

for ages 25+, with bachelors degree or higher

Less than HS graduate

49.3%

HS graduate

35.5%

Some college or associates

34.8%

Bachelors degree or higher

5.4%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Lake Andes	Charles Mix County	South Dakota
Median earnings
Population 25+, with earnings	$36,339	$42,880	$49,402
Less than high school graduate	$21,313	$35,563	$33,790
High school graduate (includes equivalency)	$30,250	$38,147	$40,544
Some college or associate's degree	$31,250	$41,526	$47,061
Bachelor's degree	$39,018	$53,631	$58,363
Graduate or professional degree	$63,750	$66,118	$72,377
Poverty rates
Less than high school graduate	49.3%	43.4%	28%
High school graduate (includes equivalency)	35.5%	21.4%	13.2%
Some college or associate's degree	34.8%	14.3%	8.5%
Bachelor's degree or higher	5.4%	12.3%	4.2%

Insights for Lake Andes, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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