Groton, South Dakota Population 2023

1,356

Groton is a city located in Brown County South Dakota. With a 2023 population of 1,356, it is the 52nd largest city in South Dakota and the 13137th largest city in the United States.Groton is currently declining at a rate of -0.59% annually and its population has decreased by -1.74% since the most recent census, which recorded a population of 1,380 in 2020. Spanning over 2 miles, Groton has a population density of 774 people per square mile.

The average household income in Groton is $87,423 with a poverty rate of 8.65%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Groton is 33.6 years, 33.8 years for males, and 32.8 years for females.

Groton Demographics

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

  • White: 97.67%
  • Two or more races: 1.95%
  • Native American: 0.38%
  • Black or African American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
The current population of Groton, South Dakota is 1,356 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 1,380.

Groton, South Dakota Population 2023

Population by Race

White

Two or more races

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Other race

Groton Population by Race

Groton Population Pyramid 2023

Groton Median Age

33.6

Total

33.8

Male

32.8

Female

Groton Adults

There are 1,218 adults, (297 of whom are seniors) in Groton.

Groton Age Dependency

100

Age Dependency Ratio

32.2

Old Age Dependency Ratio

67.8

Child Dependency Ratio

Groton Sex Ratio

Female94451.25%
Male89848.75%

Groton Population by Age

Groton Renter vs Owner Occupied by Household Type

3.51

Average Family Size

2.72

Average Household Size

77.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Groton Households and Families

Male

Female

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

The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 22.22%.

Groton Educational Attainment by Race

All

Male

Female

$46,175

Average Earnings

$50,855

Average Male

$40,379

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

98.91% of Groton residents speak only English, while 1.09% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.63% of the population.

Groton Language

Groton Poverty by Race

rate

8.65%

Overall Poverty Rate

4.72%

Male Poverty Rate

8.16%

Female Poverty Rate

Poverty in Groton

The race most likely to be in poverty in Groton is Multiple, with 25% below the poverty level.

The race least likely to be in poverty in Groton is White, with 8.14% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.54%. Among those working part-time, it was 9.48%, and for those that did not work, the poverty rate was 17.01%.

Groton Poverty

Groton Poverty Rate by Education

Groton Poverty Rate by Employment Status and Sex

Groton Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

mean

median

Income by Household Type

Groton Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.0%

Overall Marriage Rate

59.4%

Male Marriage Rate

51.3%

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 45-54, 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

73

Number of Veterans

62

Male Veterans

11

Female Veterans

Groton Veterans by War

Groton Veterans by Age

count

Groton Veterans by Race

Groton Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

16.44%

Veteran Disability Rate

Groton Veterans by Education

LaborForceParticipation

70.6%

Labor Force Participation

70.1%

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

103.04%

Born in Groton

132.9%

Native Born

0.58%

Foreign Born

0.58%

Non Citizen

0%

Naturalized

Place of Birth

132.9% of Groton residents were born in the United States, with 103.04% having been born in South Dakota. 0.58% 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 2020 is projected based on recent growth

Groton Population by Year