What city is 11579 in?

11579 is a Sea Cliff, NY mailing address. By land area, 100% lies inside Sea Cliff.

What is the population of 11579?

About 5,033 people (±15), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,039.

What is the median household income in 11579?

$193,590 (±$32,271), 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 11579?

6 USPS carrier routes with 1,981 residential and 167 business mailboxes (2,148 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 11579?

The closest, measured center to center: 11547 (1 mi, Glenwood Landing), 11542 (2.1 mi, Glen Cove), 11050 (2.6 mi, Sands Point), 11548 (2.8 mi, Brookville), 11545 (3.1 mi, Old Brookville) and 11576 (3.3 mi, East Hills).

11579 ZIP Code, Sea Cliff, NY

11579 is a ZIP code in Sea Cliff, New York in Nassau County. It covers 1.1 square miles of land. The closest ZIP codes are 11547, 11542 and 11050. 5,033 people live here in 1,769 households. At about 4,522 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (77%). Median household income is $193,590, well above the New York median of $85,974.

Quick facts

Mailing city: Sea Cliff, NY
County: Nassau County
Land area: 1.1 sq mi
Population: 5,033
Median household income: $193,590
Carrier routes: 6 (1,981 homes)

Key figures

Measure	Value
Residents	5,033
Households	1,769
Median household income	$193,590
Income per person	$98,061
Median age	40.5
Homeowners	77.3%
Median home value	$986,900
Median rent	$2,315
Bachelor's degree or higher	61.3%
Average commute (minutes)	36.2
Households with kids under 18	37.6%
Moved in the past year	16.4%
Below the poverty line	0.9%
Broadband internet	96.9%
Speak a non-English language at home	10.5%

Household income

% of households	Value
<$10K	0.0%
$10–15K	0.5%
$15–25K	2.1%
$25–35K	2.7%
$35–50K	3.7%
$50–75K	6.9%
$75–100K	9.7%
$100–150K	16.1%
$150–200K	11.1%
$200K+	47.2%

Age

% of all residents	Value
<10	13.7%
10–19	14.2%
20–24	5.8%
25–34	4.2%
35–44	14.5%
45–54	17.3%
55–64	11.4%
65–74	13.1%
75+	5.8%

Tenure

% of housing units	Value
Owned, with mortgage	51.3%
Owned outright	18.9%
Rented	20.1%
Vacant	9.7%

Type of building

% of housing units	Value
Detached house	80.3%
Townhome	3.3%
2–4 units	14.0%
5–19 units	2.5%
20+ units	0.0%
Mobile / other	0.0%

Businesses in 11579

185 business establishments with 891 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 38
Construction: 26
Other Services (except Public Administration): 25
Accommodation and Food Services: 21
Retail Trade: 13
Real Estate and Rental and Leasing: 11
Health Care and Social Assistance: 8
Wholesale Trade: 7

EDDM carrier routes

11579 has 6 USPS carrier routes with 1,981 residential and 167 business mailboxes. Open the EDDM route map.

Carrier routes in 11579

11579 has 6 USPS carrier routes (6 city (C)) with 1,981 residential and 167 business mailboxes. Routes range from 251 homes (C002) to 393 homes (C001); the median route has 330 homes. The Census counted 1,769 households in 11579 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	6
500–749	0
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 11579 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C004 — USPS business mailboxes 81, 375 homes
Route C006 — USPS business mailboxes 38, 303 homes
Route C003 — USPS business mailboxes 29, 349 homes
Route C001 — USPS business mailboxes 18, 393 homes
Route C005 — USPS business mailboxes 1, 310 homes

Select these 5 routes on the route map

Every carrier route in 11579

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	393	18	$162,515	—	—	—
C002	City	251	0	$162,515	—	—	—
C003	City	349	29	$58,442	—	—	—
C004	City	375	81	$200,001+	—	—	—
C005	City	310	1	$171,246	—	—	—
C006	City	303	38	$200,001+	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 11579 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

11547 — Glenwood Landing CDP, NY (1 mi)
11542 — Glen Cove city, NY (2.1 mi)
11050 — Sands Point village, NY (2.6 mi)
11548 — Brookville village, NY (2.8 mi)
11545 — Old Brookville village, NY (3.1 mi)
11576 — East Hills village, NY (3.3 mi)
11560 — Lattingtown village, NY (3.8 mi)
11030 — Manhasset CDP, NY (4.2 mi)

Areas that include 11579

Where it ranks

Mail every home in 11579

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) 11579, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 11579 in?: 11579 is a Sea Cliff, NY mailing address. By land area, 100% lies inside Sea Cliff.
What county is 11579 in?: 11579 is in Nassau County.
What is the population of 11579?: About 5,033 people (±15), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,039.
What is the median household income in 11579?: $193,590 (±$32,271), 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 11579?: 6 USPS carrier routes with 1,981 residential and 167 business mailboxes (2,148 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 11579?: The closest, measured center to center: 11547 (1 mi, Glenwood Landing), 11542 (2.1 mi, Glen Cove), 11050 (2.6 mi, Sands Point), 11548 (2.8 mi, Brookville), 11545 (3.1 mi, Old Brookville) and 11576 (3.3 mi, East Hills).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.