Dennis Population

2020–2026

240

2026 projection

8.1% since 2020 (increase)

0501001502002503002020202120222023202420252026

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

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Population by year

Population estimates for Dennis. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026240+156.67%
2025225+307.42%
2023195+2716.07%
2022168-10438.24%
2021272+5022.52%
2020222——

Showing 6 of 6 years.

Dennis Demographics

41.7median age

Median age

Female41.9 yrs
Male10.8 yrs

Adults

139
39 seniors · 28%100 other adults

Sex

Female 50.5% · 100Male 49.5% · 98

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 2 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

Dennis Income

$92,818median household income

Median household income

$92,818

Half of households earn more, half earn less

Median earnings

$50,636

Typical yearly pay for a worker 25 or older.

Poverty rate

0%

0% of residents

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

Dennis Marital Status

73% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married73%77%71%
Never married7%23%0%
Divorced0%0%0%
Widowed21%0%29%
Separated0%0%0%

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