Seymour, Connecticut Population 2024

17,108

Seymour is located in Naugatuck Valley Planning Region Connecticut. Seymour has a 2024 population of 17,108. Seymour is currently growing at a rate of 0.91% annually and its population has increased by 2.36% since the most recent census, which recorded a population of 16,714 in 2020.

The average household income in Seymour is $118,580 with a poverty rate of 6.29%. The median age in Seymour is 39.3 years: 38.1 years for males, and 40.2 years for females.

Seymour Demographics

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

  • White: 80.19%
  • Two or more races: 8.97%
  • Black or African American: 4.5%
  • Other race: 3.74%
  • Asian: 2.28%
  • Native Hawaiian or Pacific Islander: 0.18%
  • Native American: 0.13%
Land Area (mi²)
14.5 sq mi
Density (mi²)
1,178.40/sq mi
Growth Since 2020
2.36% (394)
The current population of Seymour, Connecticut is 17,108 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 16,714.

Population by Race

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Race
Population
Percentage (of total)
White13,44480.19%
Two or more races1,5048.97%
Black or African American7554.5%
Other race6273.74%
Asian3832.28%
Native Hawaiian or Pacific Islander310.18%
Native American220.13%

White

Two or more races

Black or African American

Other race

Asian

Native Hawaiian or Pacific Islander

Native American

Seymour Population by Race

Seymour Population Pyramid 2024

Seymour Median Age

39.3

Total

38.1

Male

40.2

Female

Seymour Adults

There are 13,251 adults, (2,684 of whom are seniors) in Seymour.

Seymour Age Dependency

58.7

Age Dependency Ratio

25.4

Old Age Dependency Ratio

33.3

Child Dependency Ratio

Seymour Sex Ratio

Female8,74652.17%
Male8,02047.83%

Seymour Population by Age

Seymour Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All6,4652.5775.124.9
Married3,0463.2495.14.9
Non Family2,1261.2343.956.1
Female9383.2173.526.5
Male3553.1595.24.8

3.11

Average Family Size

2.57

Average Household Size

75.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Seymour Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade4423.7%
Associates Degree1,25410.5%
Bachelors Degree2,01316.85%
Graduate Degree2,19518.37%
High School Graduate3,50829.36%
Less Than 9th Grade4503.77%
Some College2,08517.45%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Seymour Educational Attainment by Sex (over 25)

Seymour Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White9,2938,9813,297
Hispanic1,479965277
2+ Races856526211
Black588522290
Other Race368291139
Asian286286184
Islander313131

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

The highest rate of bachelors degrees is among islander people with a rate of 100%.

Seymour Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$80,369$83,727$70,000
Graduate Degree$98,154$118,194$80,536
High School Graduate$40,020$52,217$26,544
Less Than 9th Grade$24,699$0$0
Overall$59,368$63,816$53,795
Some College$56,480$63,140$44,375

$59,368

Average Earnings

$63,816

Average Male

$53,795

Average Female

Seymour Earnings by Educational Attainment

Seymour Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Seymour Language

85.78% of Seymour residents speak only English, while 14.22% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 7.71% of the population.

Seymour Language

Seymour Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White12,5685524.39%
Multiple1,50430620.35%
Hispanic2,32829212.54%
Other5896611.21%
Black738547.32%
Asian3834210.97%
Native2222100%

6.29%

Overall Poverty Rate

4.3%

Male Poverty Rate

8.1%

Female Poverty Rate

Poverty in Seymour

The race most likely to be in poverty in Seymour is Native, with 100% below the poverty level.

The race least likely to be in poverty in Seymour is White, with 4.39% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.46%. Among those working part-time, it was 7.27%, and for those that did not work, the poverty rate was 11.03%.

Seymour Poverty

rate

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Rate
Poverty
High School6.9%
Some College6.45%
Less Than 9th Grade4.07%
Bachelors or Greater3.25%

Seymour Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed7.56%
Female Employed5.26%
Male Unemployed2.44%
Male Employed1.08%

Seymour Poverty Rate by Employment Status and Sex

Seymour Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$121,676$139,046
Households$96,747$118,580
Married Families$142,933$-999,999,999
Non Families$50,526$69,856

mean

median

Income by Household Type

Seymour Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

45.1%

Overall Marriage Rate

46.1%

Male Marriage Rate

44.1%

Female Marriage Rate

Seymour Married by Age and Sex

male

female

Seymour 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 45-54.

Seymour Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Seymour Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

628

Number of Veterans

507

Male Veterans

121

Female Veterans

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War
Veterans
Vietnam270
First Gulf War197
Second Gulf War88
Korea18
World War II0

Seymour Veterans by War

count

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Age Group
Veterans
65 to 74219
55 to 64165
35 to 54147
75+81
18 to 3416

Seymour Veterans by Age

count

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Name
Veterans
% of Total
White5595.12%
Hispanic1116.85%
2+ Races455.02%
Black162.63%
Other Race81.84%

Seymour Veterans by Race

Seymour Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.26%

Veteran Poverty Rate

21.53%

Veteran Disability Rate

Seymour Veterans by Education

LaborForceParticipation

70.1%

Labor Force Participation

67.3%

Employment Rate

3.3%

Unemployment Rate

Seymour Employment by Age

LaborForceParticipation

Seymour Employment by Race

LaborForceParticipation

Seymour 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

66.53%

Born in Seymour

90.65%

Native Born

9.35%

Foreign Born

3.12%

Non Citizen

6.23%

Naturalized

Place of Birth

90.65% of Seymour residents were born in the United States, with 66.53% having been born in Connecticut. 3.12% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Seymour Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202917,8831550.87%
202817,7281550.88%
202717,5731550.89%
202617,4181550.9%
202517,2631550.91%
202417,1081550.91%
202316,9531550.92%
202216,798220.13%
202116,776620.37%
202016,7142981.82%
201916,416-87-0.53%
201816,503-16-0.1%
201716,519-40-0.24%
201616,559830.5%
201516,476-85-0.51%
201416,56110.01%
201316,560-14-0.08%
201216,574340.21%
201116,540100.06%
201016,53000%

Seymour Population by Year