Waltham Population

2010–2026

168

2026 projection

1.2% since 2020 (increase)

050100150200201020122014201620182020202220242026

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 Waltham. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202616800.00%
2025168+10.60%
2024167-10.60%
202316800.00%
2022168+10.60%
2021167+10.60%
2020166+1610.67%
2019150-21.32%
2018152+10.66%
2017151+10.67%

Showing 10 of 17 years.

Waltham Demographics

34.7median age

Median age

Female33.5 yrs
Male34.7 yrs

Adults

114
21 seniors · 18%93 other adults

Sex

Female 45.1% · 82Male 54.9% · 100

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

Waltham Income

$69,167median household income

Median household income

$69,167

Half of households earn more, half earn less

Median earnings

$46,875

Typical yearly pay for a worker 25 or older.

Poverty rate

10.4%

About 1 in 10 residents

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

Waltham Marital Status

65% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married65%60%70%
Never married19%25%12%
Divorced10%13%7%
Widowed6%0%12%
Separated<1%2%0%

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