Plymouth Population

1890–2026

78,393

2026 projection

3.2% since 2020 (decrease)

020K40K60K80K100K1900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Plymouth. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202678,393-5490.70%
202578,942+1880.24%
202478,754+7971.02%
202377,957-8401.07%
202278,797-1,0451.31%
202179,842-1,1061.37%
202080,948+1,1821.48%
201979,766+3680.46%
201879,398+1,2261.57%
201778,172+7901.02%

Showing 10 of 29 years.

Plymouth Demographics

40.3median age

Median age

Female40.6 yrs
Male40 yrs

Adults

59,645
13,533 seniors · 23%46,112 other adults

Sex

Female 51.5% · 40,826Male 48.5% · 38,394

Population by age

MaleFemale85+ years, male: 80785+ years, female: 87580–84 years, male: 51380–84 years, female: 93675–79 years, male: 96375–79 years, female: 1,22270–74 years, male: 1,84170–74 years, female: 1,93665–69 years, male: 1,97365–69 years, female: 2,46760–64 years, male: 2,55460–64 years, female: 2,43755–59 years, male: 2,36155–59 years, female: 2,67750–54 years, male: 2,22850–54 years, female: 2,98345–49 years, male: 2,41045–49 years, female: 2,19440–44 years, male: 3,56940–44 years, female: 3,24435–39 years, male: 2,98835–39 years, female: 3,00130–34 years, male: 2,51130–34 years, female: 2,58725–29 years, male: 2,38725–29 years, female: 2,08720–24 years, male: 1,27820–24 years, female: 1,22715–19 years, male: 1,90215–19 years, female: 2,20010–14 years, male: 2,56210–14 years, female: 3,4465–9 years, male: 3,0475–9 years, female: 2,5510–4 years, male: 2,5000–4 years, female: 2,75685+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K3K3K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 792 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Plymouth Income

$136,534median household income

Median household income

$136,534

Half of households earn more, half earn less

Median earnings

$83,935

Typical yearly pay for a worker 25 or older.

Poverty rate

4.3%

About 1 in 23 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Plymouth Marital Status

60% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married60%63%57%
Never married27%28%25%
Divorced9%6%11%
Widowed4%2%6%
Separated<1%<1%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year