Village in Nassau County, New York · 8.6 sq mi · 613 people per sq mi
About 5,300 people live in Old Westbury. The typical household earns $250,001, and the median resident is 29.5 years old.
2026 projection
From 4,297 in 2020
Poverty rate 3.23%
Men 31.2 · Women 29.1
1930–2026
5,259
2026 projection
22.4% since 2020 (increase)
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.
1930–2026
5,259
2026 projection
22.4% since 2020 (increase)
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.
| 2026 | 5,259 | +188 | 3.71% |
|---|---|---|---|
| 2025 | 5,071 | +22 | 0.44% |
| 2024 | 5,049 | +102 | 2.06% |
| 2023 | 4,947 | +95 | 1.96% |
| 2022 | 4,852 | +58 | 1.21% |
| 2021 | 4,794 | +497 | 11.57% |
| 2020 | 4,297 | +175 | 4.25% |
| 2019 | 4,122 | -479 | 10.41% |
| 2018 | 4,601 | -47 | 1.01% |
| 2017 | 4,648 | +11 | 0.24% |
Showing 10 of 25 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 42 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
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 31 residents
40% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 40% | 42% | 39% |
| Never married | 52% | 52% | 53% |
| Divorced | 3% | 3% | 3% |
| Widowed | 4% | 3% | 5% |
| Separated | <1% | <1% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau