11568 ZIP Code, Old Westbury, NY
11568 is a ZIP code in Old Westbury, New York in Nassau County. It covers 8.7 square miles of land. The closest ZIP codes are 11548, 11577 and 11590. 4,144 people live here in 974 households. With about 478 people per square mile it is lightly settled, and most homes are owner-occupied (94%). Median household income is $250,000+, well above the New York median of $85,974; the median age is 29.2, younger than most ZIP codes.
Quick facts
- Mailing city: Old Westbury, NY
- County: Nassau County
- Land area: 8.7 sq mi
- Population: 4,144
- Median household income: $250,000+
- Carrier routes: 4 (1,072 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 4,144 |
| Households | 974 |
| Median household income | $250,000+ |
| Income per person | $130,620 |
| Median age | 29.2 |
| Homeowners | 93.7% |
| Median home value | $2,000,000+ |
| Median rent | $3,501 |
| Bachelor's degree or higher | 78.8% |
| Average commute (minutes) | 33.4 |
| Households with kids under 18 | 24.4% |
| Moved in the past year | 19.0% |
| Below the poverty line | 3.3% |
| Broadband internet | 96.4% |
| Speak a non-English language at home | 26.7% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.7% |
| $10–15K | 2.7% |
| $15–25K | 0.6% |
| $25–35K | 0.4% |
| $35–50K | 3.7% |
| $50–75K | 1.8% |
| $75–100K | 7.7% |
| $100–150K | 15.1% |
| $150–200K | 1.5% |
| $200K+ | 65.7% |
Age
| % of all residents | Value |
|---|---|
| <10 | 4.2% |
| 10–19 | 24.5% |
| 20–24 | 16.0% |
| 25–34 | 11.0% |
| 35–44 | 5.7% |
| 45–54 | 9.6% |
| 55–64 | 15.1% |
| 65–74 | 8.7% |
| 75+ | 5.3% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 47.0% |
| Owned outright | 41.3% |
| Rented | 5.5% |
| Vacant | 6.3% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 97.8% |
| Townhome | 0.0% |
| 2–4 units | 0.6% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 1.6% |
Businesses in 11568
136 business establishments with 2,787 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 26
- Real Estate and Rental and Leasing: 19
- Professional, Scientific, and Technical Services: 17
- Accommodation and Food Services: 16
- Other Services (except Public Administration): 10
- Arts, Entertainment, and Recreation: 9
- Administrative and Support and Waste Management and Remediation Services: 8
- Retail Trade: 7
EDDM carrier routes
11568 has 4 USPS carrier routes with 1,072 residential and 21 business mailboxes. Open the EDDM route map.
Carrier routes in 11568
11568 has 4 USPS carrier routes (4 city (C)) with 1,072 residential and 21 business mailboxes. Routes range from 227 homes (C053) to 308 homes (C054); the median route has 269 homes. The Census counted 974 households in 11568 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 3 |
| 500–749 | 0 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 11568 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C053 — USPS business mailboxes 10, 227 homes
- Route C054 — USPS business mailboxes 4, 308 homes
- Route C052 — USPS business mailboxes 4, 268 homes
- Route C051 — USPS business mailboxes 3, 269 homes
Select these 4 routes on the route map
Every carrier route in 11568
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C051 | City | 269 | 3 | $200,001+ | — | — | — |
| C052 | City | 268 | 4 | $200,001+ | — | — | — |
| C053 | City | 227 | 10 | $200,001+ | — | — | — |
| C054 | City | 308 | 4 | $200,001+ | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 11568 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 11548 — Brookville village, NY (1.9 mi)
- 11577 — Roslyn Heights CDP, NY (2.2 mi)
- 11590 — Westbury village, NY (2.5 mi)
- 11514 — Carle Place CDP, NY (2.7 mi)
- 11576 — East Hills village, NY (2.7 mi)
- 11545 — Old Brookville village, NY (2.8 mi)
- 11753 — Jericho CDP, NY (2.9 mi)
- 11596 — Williston Park village, NY (3 mi)
Areas that include 11568
- Old Westbury, NY ZIP codes — 1 ZIP code
- Nassau County ZIP codes — 70 ZIP codes
- New York ZIP code data
Where it ranks
- No. 1 of 64: highest median household income in Nassau County
- No. 1 of 64: highest median home value in Nassau County
- No. 6 of 64: highest share of owner-occupied homes in Nassau County
- No. 3 of 65: highest share of residents who moved in during the past year in Nassau County
- No. 3 of 65: lowest median age in Nassau County
Mail every home in 11568
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 11568, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 11568 in?
- 11568 is a Old Westbury, NY mailing address. By land area, 98% lies inside Old Westbury.
- What county is 11568 in?
- 11568 is in Nassau County.
- What is the population of 11568?
- About 4,144 people (±153), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,168.
- What is the median household income in 11568?
- $250,000+, compared with $85,974 for New York as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 11568?
- 4 USPS carrier routes with 1,072 residential and 21 business mailboxes (1,093 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 11568?
- The closest, measured center to center: 11548 (1.9 mi, Brookville), 11577 (2.2 mi, Roslyn Heights), 11590 (2.5 mi, Westbury), 11514 (2.7 mi, Carle Place), 11576 (2.7 mi, East Hills) and 11545 (2.8 mi, Old Brookville).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.