Groton, South Dakota Population 2024

1,370

Groton is a city located in Brown County South Dakota. Groton has a 2024 population of 1,370. Groton is currently declining at a rate of -0.22% annually and its population has decreased by -0.87% since the most recent census, which recorded a population of 1,382 in 2020.

The average household income in Groton is $95,447 with a poverty rate of 3.41%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Groton is 34 years, 33.9 years for males, and 34.2 years for females.

Groton Demographics

According to the most recent ACS, the racial composition of Groton was:

  • White: 96.39%
  • Two or more races: 2.37%
  • Other race: 1.24%
  • Black or African American:
  • Native American:
  • Asian:
  • Native Hawaiian or Pacific Islander:
Land Area (mi²)
1.8 sq mi
Density (mi²)
782.30/sq mi
Growth Since 2020
-0.87% (-12)
The current population of Groton, South Dakota is 1,370 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 1,382.

Groton, South Dakota Population 2024

Population by Race

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Race
Population
Percentage (of total)
White1,62796.39%
Two or more races402.37%
Other race211.24%
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Groton Population by Race

Groton Population Pyramid 2024

Groton Median Age

34

Total

33.9

Male

34.2

Female

Groton Adults

There are 1,203 adults, (295 of whom are seniors) in Groton.

Groton Age Dependency

85.9

Age Dependency Ratio

32.5

Old Age Dependency Ratio

53.4

Child Dependency Ratio

Groton Sex Ratio

Female80147.45%
Male88752.55%

Groton Population by Age

Groton Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All6532.527624
Married3403.4892.47.6
Non Family2391.1452.347.7
Male462.4873.926.1
Female282.6482.117.9
showing: 5 rows

3.25

Average Family Size

2.52

Average Household Size

76.0%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Groton Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Groton Educational Attainment by Sex (over 25)

Groton Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among other race people with a rate of 100%.

The highest rate of bachelors degrees is among other race people with a rate of 75%.

Groton Educational Attainment by Race

All

Male

Female

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$54,167

Average Earnings

$58,214

Average Male

$50,132

Average Female

Groton Earnings by Educational Attainment

Groton Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Groton Language

98.19% of Groton residents speak only English, while 1.81% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.81% of the population.

Groton Language

Groton Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White1,572382.42%
Multiple401537.5%
Hispanic41512.2%
showing: 3 rows

3.41%

Overall Poverty Rate

4.62%

Male Poverty Rate

1.98%

Female Poverty Rate

Poverty in Groton

The race most likely to be in poverty in Groton is Multiple, with 37.5% below the poverty level.

The race least likely to be in poverty in Groton is White, with 2.42% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.42%. Among those working part-time, it was 2.98%, and for those that did not work, the poverty rate was 11.48%.

Groton Poverty

rate

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Rate
Poverty
Some College6.01%
Less Than 9th Grade4.35%
High School4.24%
Bachelors or Greater
showing: 4 rows

Groton Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed50%
Female Employed1.23%
Male Employed0.61%
Female Unemployed
showing: 4 rows

Groton Poverty Rate by Employment Status and Sex

Groton Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Groton Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.7%

Overall Marriage Rate

53.6%

Male Marriage Rate

51.8%

Female Marriage Rate

Groton Married by Age and Sex

male

female

Groton Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Groton Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Groton Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

81

Number of Veterans

78

Male Veterans

3

Female Veterans

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Groton Veterans by War

count

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Groton Veterans by Age

count

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Groton Veterans by Race

Groton Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

4.94%

Veteran Poverty Rate

33.33%

Veteran Disability Rate

Groton Veterans by Education

LaborForceParticipation

71.6%

Labor Force Participation

71%

Employment Rate

0.8%

Unemployment Rate

Groton Employment by Age

LaborForceParticipation

Groton Employment by Race

LaborForceParticipation

Groton Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

81.87%

Born in Groton

98.82%

Native Born

1.18%

Foreign Born

1.18%

Non Citizen

Naturalized

Place of Birth

98.82% of Groton residents were born in the United States, with 81.87% having been born in South Dakota. 1.18% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Groton Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20291,355-3-0.22%
20281,358-3-0.22%
20271,361-3-0.22%
20261,364-3-0.22%
20251,367-3-0.22%
20241,370-3-0.22%
20231,373-3-0.22%
20221,376-3-0.22%
20211,379-3-0.22%
20201,382-100-6.75%
20191,482-14-0.94%
20181,496-18-1.19%
20171,514140.93%
20161,50050.33%
20151,49520.13%
20141,493-6-0.4%
20131,49950.33%
20121,494221.49%
20111,472120.82%
20101,460
showing: 20 rows

Groton Population by Year