Stonington, Connecticut Population 2021

18,891
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Stonington is a city located in New London County Connecticut. Stonington has a 2020 population of 18,891. Stonington is currently growing at a rate of 0.89% annually and its population has increased by 1.96% since the most recent census, which recorded a population of 18,528 in 2010. Stonington reached it's highest population of 18,891 in 2021.

The average household income in Stonington is $115,663 with a poverty rate of 7.18%. The median rental costs in recent years comes to $1,133 per month, and the median house value is $335,100. The median age in Stonington is 50.8 years, 49.1 years for males, and 52.3 years for females.

Stonington Demographics

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

  • White: 92.50%
  • Two or more races: 2.67%
  • Black or African American: 2.17%
  • Asian: 2.06%
  • Other race: 0.42%
  • Native American: 0.18%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Stonington, Connecticut is 18,891 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 18,393.The last official US Census in 2010 recorded the population at 18,528.

Stonington, Connecticut Population 2021

Population by Race

Race Population Percentage
White17,06292.50%
Two or More Races4922.67%
Black or African American4002.17%
Asian3802.06%
Some Other Race770.42%
American Indian and Alaska Native340.18%
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Stonington Population by Race

Stonington Population Pyramid $2021

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Stonington Median Age

50.8


Total

49.1


Male

52.3


Female

Stonington Adults

There are 15,299 adults, (4,569 of whom are seniors) in Stonington.

Stonington Age Dependency

71.9

Age Dependency Ratio

42.6

Old Age Dependency Ratio

29.3

Child Dependency Ratio

Stonington Sex Ratio

Female

9,532

51.68%

Male

8,913

48.32%

Stonington Population by Age

Stonington Renter vs Owner Occupied by Household Type

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Stonington Household Types

Type Owner Renter
Married90.4%9.6%
All72.8%27.2%
Non Family59.2%40.8%
Male48.1%51.9%
Female41.8%58.2%

72.8%

Rate of Home Ownership

Stonington Households and Families

Type Count Average Size Owned
All8,2102.2172.8
Married4,1202.8390.4
Non Family3,0031.1859.2
Female7442.7341.8
Male3432.6448.1

2.74

Average Family Size

2.21

Average Household Size

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Stonington Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2932.09%
9th to 12th Grade4022.86%
High School Graduate3,33423.73%
Some College2,27816.22%
Associates Degree1,1248.00%
Bachelors Degree3,45524.59%
Graduate Degree3,16222.51%
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Stonington Educational Attainment by Sex (over 25)

Stonington Educational Attainment by Race

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Race Total High School Bachelors
White13,03212,4506,157
Hispanic370303140
Asian321299224
Black24021654
2+ Races13913974
Other Race604910
Native American99

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 69.78%.

Stonington Educational Attainment by Race

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Name Average Male Female
Overall$51,706$67,679$34,232
Less Than 9th Grade$31,250$31,250$36,250
High School Graduate$36,631$52,077$25,784
Some College$44,550$58,548$30,851
Bachelors Degree$55,536$88,380$42,480
Graduate Degree$89,813$109,605$61,296

$51,706

Average Earnings

$67,679

Average Male

$34,232

Average Female

Stonington Earnings by Educational Attainment

Stonington Language by Age

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Stonington Language

93.57% of Stonington residents speak only English, while 6.43% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 3.21% of the population.

Stonington Language

Stonington Poverty by Race

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Name Total In Poverty Poverty Rate
White16,3989415.74%
Hispanic75819125.20%
Black36014740.83%
Multiple4859920.41%
Asian3694913.28%
Native34926.47%
Other73810.96%

7.18%

Overall Poverty Rate

5.46%

Male Poverty Rate

8.81%

Female Poverty Rate

Poverty in Stonington

The race most likely to be in poverty in Stonington is Black, with 40.83% below the poverty level.

The race least likely to be in poverty in Stonington is White, with 5.74% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.53%. Among those working part-time, it was 8.91%, and for those that did not work, the poverty rate was 11.00%.

Stonington Poverty

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Name Poverty
Less Than 9th Grade13.25%
High School9.53%
Some College5.78%
Bachelors or Greater3.57%

Stonington Poverty Rate by Education

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Rate Poverty
Female Unemployed56.11%
Male Unemployed27.93%
Female Employed3.27%
Male Employed1.54%

Stonington Poverty Rate by Employment Status and Sex

Stonington Income by Household Type

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Name Median Mean
Households$81,667$115,663
Families$104,799$137,902
Married Families$123,750-
Non Families$47,119$72,754
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Income by Household Type

Stonington Marital Status

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Marriage Rates

53.5%

Overall Marriage Rate

54.9%

Male Marriage Rate

52.2%

Female Marriage Rate

Stonington Married by Age and Sex

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Stonington Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Stonington Marital Status by Race

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Stonington Marital Status

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1,339

Number of Veterans

1,304

Male Veterans

35

Female Veterans

War Veterans
Vietnam576
First Gulf War233
Second Gulf War214
Korea91
World War II84

Stonington Veterans by War

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Age Group Veterans
65 to 74469
75+363
35 to 54243
55 to 64187
18 to 3477

Stonington Veterans by Age

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Name Veterans % of Total
White1,2718.90%
Black5720.96%
Hispanic4511.51%
Other Race1118.33%

Stonington Veterans by Race

Stonington Veterans by Education

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1.75%

Veteran Poverty Rate

31.48%

Veteran Disability Rate

Stonington Veterans by Education

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62.7%

Labor Force Participation

58.6%

Employment Rate

4.6%

Unemployment Rate

Stonington Employment by Age

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Stonington Employment by Race

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Stonington Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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35.14%

Born in Stonington

94.33%

Native Born

5.67%

Foreign Born

1.83%

Non Citizen

3.84%

Naturalized

Place of Birth

94.33% of Stonington residents were born in the United States, with 35.14% having been born in Connecticut. 1.83% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Stonington Place of Birth

Year Population Growth Annual Growth Rate
202118,8911660.89%
202018,7251660.89%
201918,5591660.90%
201818,393-101-0.55%
201718,494-46-0.25%
201618,5403031.66%
201518,237-152-0.83%
201418,389-74-0.40%
201318,463-73-0.39%
201218,536530.29%
201118,483-45-0.24%
201018,5280.00%

Stonington Population by Year