Westbury Population

1940–2026

16,012

2026 projection

0.9% since 2020 (increase)

05K10K15K20K19401960198020002020

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 Westbury. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202616,012+310.19%
202515,981+490.31%
202415,932+1100.70%
202315,822+320.20%
202215,790-310.20%
202115,821-430.27%
202015,864+300.19%
201915,834+500.32%
201815,784+490.31%
201715,735+800.51%

Showing 10 of 24 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.

Growth since 2020, compared

Westbury is growing faster than Nassau County and New York, and slower than the U.S.

  • United States+3.1%
  • Westbury+1.1%
  • Nassau County+0.6%
  • New York−0.6%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Westbury Demographics

44.5median age

Median age

Female45 yrs
Male43.8 yrs

Adults

12,628
2,978 seniors (65+) · 24% of adults9,650 other adults

Sex

Female 50% · 7,904Male 50% · 7,904

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 158 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

Westbury Income

$145,185median household income

Median household income

$145,185

Half of households earn more, half earn less

Median earnings

$69,086

Typical yearly pay for a worker 25 or older.

Poverty rate

3.4%

About 1 in 30 residents

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

Westbury Marital Status

49% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married49%50%48%
Never married35%37%34%
Divorced7%8%6%
Widowed8%5%10%
Separated<1%<1%2%

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