Cohasset Population

2011–2026

379

2026 projection

23.7% since 2020 (decrease)

02004006008001K1.2K20122014201620182020202220242026

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 Cohasset. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026379-307.33%
2025409-586.42%
2023467+7519.13%
2022392-8818.33%
2021480-173.42%
2020497-13421.24%
2019631-35936.26%
2018990-11710.57%
20171,107+18520.07%
2016922-111.18%

Showing 10 of 15 years.

Cohasset Demographics

36.1median age

Median age

Female38.1 yrs
Male31.8 yrs

Adults

367
101 seniors · 28%266 other adults

Sex

Female 41.4% · 237Male 58.6% · 336

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 6 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

Cohasset Income

$79,674median household income

Median household income

$79,674

Half of households earn more, half earn less

Poverty rate

2.3%

About 1 in 44 residents

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

Cohasset Marital Status

75% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married75%64%89%
Never married18%27%5%
Divorced6%9%1%
Widowed2%0%4%
Separated0%0%0%

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