Belmont Population

2011–2026

27,535

2026 projection

5.3% since 2020 (increase)

05K10K15K20K25K30K20122014201620182020202220242026

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 Belmont. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202627,535+1750.64%
202527,360+3510.65%
202327,009+120.04%
202226,997-590.22%
202127,056+8983.43%
202026,158+450.17%
201926,113+700.27%
201826,043+780.30%
201725,965+4101.60%
201625,555+2180.86%

Showing 10 of 15 years.

Belmont Demographics

42.9median age

Median age

Female43.7 yrs
Male42.2 yrs

Adults

20,606
5,235 seniors · 25%15,371 other adults

Sex

Female 51.8% · 14,072Male 48.2% · 13,103

Population by age

MaleFemale85+ years, male: 13585+ years, female: 29780–84 years, male: 23880–84 years, female: 34375–79 years, male: 52175–79 years, female: 45470–74 years, male: 67970–74 years, female: 84965–69 years, male: 76565–69 years, female: 95460–64 years, male: 76860–64 years, female: 86755–59 years, male: 83155–59 years, female: 1,00350–54 years, male: 1,08850–54 years, female: 95445–49 years, male: 1,03345–49 years, female: 1,02640–44 years, male: 1,01140–44 years, female: 1,30035–39 years, male: 79535–39 years, female: 89030–34 years, male: 64330–34 years, female: 83425–29 years, male: 45525–29 years, female: 38520–24 years, male: 35620–24 years, female: 54415–19 years, male: 1,29615–19 years, female: 80610–14 years, male: 1,01210–14 years, female: 9215–9 years, male: 8435–9 years, female: 9580–4 years, male: 6340–4 years, female: 68785+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

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 272 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

Belmont Income

$183,137median household income

Median household income

$183,137

Half of households earn more, half earn less

Median earnings

$110,854

Typical yearly pay for a worker 25 or older.

Poverty rate

3.6%

About 1 in 28 residents

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

Belmont Marital Status

62% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married62%65%60%
Never married27%28%26%
Divorced6%4%7%
Widowed4%2%7%
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