Westfield Population

1810–2026

32,947

2026 projection

6.2% since 2020 (increase)

05K10K15K20K25K30K35K1850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal 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 Westfield. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202632,947+3521.08%
202532,595+2970.92%
202432,298+1,0153.24%
202331,283+4471.45%
202230,83600.00%
202130,836-1960.63%
202031,032-710.23%
201931,103-860.28%
201831,189+570.18%
201731,132+320.10%

Showing 10 of 37 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Westfield Demographics

40.7median age

Median age

Female41.1 yrs
Male40.2 yrs

Adults

22,179
4,629 seniors (65+) · 21% of adults17,550 other adults

Sex

Female 50.2% · 15,607Male 49.8% · 15,504

Population by age

MaleFemale85+ years, male: 13885+ years, female: 25180–84 years, male: 27380–84 years, female: 24675–79 years, male: 43075–79 years, female: 67370–74 years, male: 55970–74 years, female: 59065–69 years, male: 69865–69 years, female: 77160–64 years, male: 88460–64 years, female: 78555–59 years, male: 1,57655–59 years, female: 1,23350–54 years, male: 1,27350–54 years, female: 1,20845–49 years, male: 1,14445–49 years, female: 1,30440–44 years, male: 80640–44 years, female: 96035–39 years, male: 1,29035–39 years, female: 1,02830–34 years, male: 71130–34 years, female: 88425–29 years, male: 42925–29 years, female: 46220–24 years, male: 69320–24 years, female: 40615–19 years, male: 94015–19 years, female: 1,18310–14 years, male: 1,40510–14 years, female: 1,2145–9 years, male: 1,0855–9 years, female: 1,0610–4 years, male: 1,1700–4 years, female: 1,34885+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 311 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

Westfield Income

$232,629median household income

Median household income

$232,629

Half of households earn more, half earn less

Median earnings

$120,402

Typical yearly pay for a worker 25 or older.

Poverty rate

1.8%

About 1 in 57 residents

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

Westfield Marital Status

66% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married66%68%65%
Never married24%26%21%
Divorced6%4%7%
Widowed4%2%6%
Separated<1%<1%<1%

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

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources