Dennis Population

2020–2026

111

2026 projection

73.4% since 2020 (increase)

0204060801001202020202120222023202420252026

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.
2026111+76.73%
2025104+147.50%
202390+69328.57%
202221-4970.00%
202170+69.38%
202064——

Showing 6 of 6 years.

Dennis Demographics

36.1median age

Median age

Female0 yrs
Male36.4 yrs

Adults

69
19 seniors · 28%50 other adults

Sex

Female 40% · 34Male 60% · 51

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 0.85 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 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%71%74%
Never married0%0%0%
Divorced15%29%0%
Widowed13%0%27%
Separated0%0%0%

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