Plymouth is located in Naugatuck Valley Planning Region Connecticut. Plymouth has a 2024 population of 11,818. Plymouth is currently growing at a rate of 0.44% annually and its population has increased by 1.46% since the most recent census, which recorded a population of 11,648 in 2020.
The average household income in Plymouth is $105,774 with a poverty rate of 8.18%. The median age in Plymouth is 43.3 years: 43.8 years for males, and 42.7 years for females.
According to the most recent ACS, the racial composition of Plymouth was:
White
Two or more races
Other race
Asian
Black or African American
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 4,496 | 2.58 | 77 | 23 |
| Married | 2,262 | 3.18 | 94.2 | 5.8 |
| Non Family | 1,437 | 1.16 | 58.1 | 41.9 |
| Female | 468 | 3.41 | 66.5 | 33.5 |
| Male | 329 | 3.54 | 55.9 | 44.1 |
3.1
Average Family Size
2.58
Average Household Size
77.0%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among black people with a rate of 100%.
The highest rate of bachelors degrees is among hispanic people with a rate of 28.49%.
All
Male
Female
$55,582
Average Earnings
$56,189
Average Male
$55,136
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
92.08% of Plymouth residents speak only English, while 7.92% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.84% of the population.
rate
8.18%
Overall Poverty Rate
7.27%
Male Poverty Rate
8.98%
Female Poverty Rate
The race most likely to be in poverty in Plymouth is Black, with 57.84% below the poverty level.
The race least likely to be in poverty in Plymouth is White, with 8.53% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0.86%. Among those working part-time, it was 7.2%, and for those that did not work, the poverty rate was 14.85%.
Married
Widowed
Divorced
Separated
NeverMarried
46.8%
Overall Marriage Rate
51.6%
Male Marriage Rate
42.6%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
7.29%
Veteran Poverty Rate
29.15%
Veteran Disability Rate
LaborForceParticipation
67.3%
Labor Force Participation
63.3%
Employment Rate
6%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
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.
Europe
Asia
Africa
Oceania
Latin America
North America
79.29%
Born in Plymouth
95.96%
Native Born
4.04%
Foreign Born
0.95%
Non Citizen
3.09%
Naturalized
95.96% of Plymouth residents were born in the United States, with 79.29% having been born in Connecticut. 0.95% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 12,078 | 52 | 0.43% |
| 2028 | 12,026 | 52 | 0.43% |
| 2027 | 11,974 | 52 | 0.44% |
| 2026 | 11,922 | 52 | 0.44% |
| 2025 | 11,870 | 52 | 0.44% |
| 2024 | 11,818 | 52 | 0.44% |
| 2023 | 11,766 | 52 | 0.44% |
| 2022 | 11,714 | 18 | 0.15% |
| 2021 | 11,696 | 48 | 0.41% |
| 2020 | 11,648 | 41 | 0.35% |
| 2019 | 11,607 | -56 | -0.48% |
| 2018 | 11,663 | -33 | -0.28% |
| 2017 | 11,696 | -81 | -0.69% |
| 2016 | 11,777 | -91 | -0.77% |
| 2015 | 11,868 | -78 | -0.65% |
| 2014 | 11,946 | -107 | -0.89% |
| 2013 | 12,053 | -53 | -0.44% |
| 2012 | 12,106 | -80 | -0.66% |
| 2011 | 12,186 | -48 | -0.39% |
| 2010 | 12,234 | 0 | 0% |