Plymouth Population

1860–2026

9,118

2026 projection

2.3% since 2020 (decrease)

02K4K6K8K10K12K186018801900192019401960198020002020

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.
20269,118-460.50%
20259,164+100.11%
20249,154-140.15%
20239,168-110.12%
20229,179-800.86%
20219,259-770.82%
20209,336+1741.90%
20199,162-240.26%
20189,186+190.21%
20179,167+280.31%

Showing 10 of 32 years.

Plymouth Demographics

44.5median age

Median age

Female45.7 yrs
Male43.9 yrs

Adults

7,303
1,598 seniors · 22%5,705 other adults

Sex

Female 50.3% · 4,634Male 49.7% · 4,580

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 92 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

$112,145median household income

Median household income

$112,145

Half of households earn more, half earn less

Median earnings

$91,583

Typical yearly pay for a worker 25 or older.

Poverty rate

3.2%

About 1 in 32 residents

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

Plymouth Marital Status

49% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married49%50%48%
Never married33%34%32%
Divorced11%12%10%
Widowed7%4%10%
Separated<1%1%<1%

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