What city is 11722 in?

11722 is a Central Islip, NY mailing address. By land area, 97% lies inside Central Islip and 3% lies inside Islip.

What is the population of 11722?

About 39,033 people (±2,623), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 37,491.

What is the median household income in 11722?

$114,049 (±$6,479), 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 11722?

20 USPS carrier routes with 10,045 residential and 482 business mailboxes (10,528 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 11722?

The closest, measured center to center: 11749 (2.1 mi, Islandia), 11752 (2.1 mi, North Great River), 11788 (2.5 mi, Hauppauge), 11717 (2.9 mi, Brentwood), 11716 (3.3 mi, Bohemia) and 11751 (3.8 mi, Islip).

11722 ZIP Code, Central Islip, NY

11722 is a ZIP code in Central Islip, New York in Suffolk County. It covers 7.0 square miles of land. The closest ZIP codes are 11749, 11752 and 11788. 39,033 people live here in 9,660 households, more than in 9 of every 10 New York ZIP codes. At about 5,602 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (78%). Median household income is $114,049, above the New York median of $85,974; 41% of households have children under 18.

Quick facts

Mailing city: Central Islip, NY
County: Suffolk County
Land area: 7.0 sq mi
Population: 39,033
Median household income: $114,049
Carrier routes: 20 (10,045 homes)

Key figures

Measure	Value
Residents	39,033
Households	9,660
Median household income	$114,049
Income per person	$33,630
Median age	34.9
Homeowners	78.2%
Median home value	$436,600
Median rent	$2,055
Bachelor's degree or higher	19.3%
Average commute (minutes)	27.1
Households with kids under 18	41.3%
Moved in the past year	7.1%
Below the poverty line	9.2%
Broadband internet	91.4%
Speak a non-English language at home	61.6%

Household income

% of households	Value
<$10K	2.4%
$10–15K	2.3%
$15–25K	5.4%
$25–35K	3.6%
$35–50K	5.1%
$50–75K	14.4%
$75–100K	10.1%
$100–150K	24.9%
$150–200K	13.1%
$200K+	18.7%

Age

% of all residents	Value
<10	12.4%
10–19	17.2%
20–24	6.8%
25–34	13.7%
35–44	14.3%
45–54	13.0%
55–64	11.1%
65–74	6.3%
75+	5.1%

Tenure

% of housing units	Value
Owned, with mortgage	50.7%
Owned outright	19.5%
Rented	19.4%
Vacant	10.4%

Type of building

% of housing units	Value
Detached house	64.9%
Townhome	15.7%
2–4 units	5.6%
5–19 units	7.5%
20+ units	6.0%
Mobile / other	0.2%

Businesses in 11722

607 business establishments with 5,933 employees (ZIP Codes Business Patterns 2023).

Construction: 117
Retail Trade: 77
Other Services (except Public Administration): 71
Professional, Scientific, and Technical Services: 66
Administrative and Support and Waste Management and Remediation Services: 65
Accommodation and Food Services: 51
Health Care and Social Assistance: 47
Wholesale Trade: 26

EDDM carrier routes

11722 has 20 USPS carrier routes with 10,045 residential and 482 business mailboxes. Open the EDDM route map.

Carrier routes in 11722

11722 has 20 USPS carrier routes (20 city (C)) with 10,045 residential and 482 business mailboxes. Routes range from 394 homes (C011) to 1,051 homes (C032); the median route has 452 homes. The Census counted 9,660 households in 11722 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	12
500–749	7
750–999	0
1,000–1,499	1
1,500+	0

Best routes in 11722 for…

Most businesses

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

Route C023 — USPS business mailboxes 126, 411 homes
Route C010 — USPS business mailboxes 89, 450 homes
Route C021 — USPS business mailboxes 54, 444 homes
Route C001 — USPS business mailboxes 45, 398 homes
Route C003 — USPS business mailboxes 42, 408 homes

Select these 5 routes on the route map

Every carrier route in 11722

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	398	45	$75,727	—	—	—
C002	City	419	12	$120,878	—	—	—
C003	City	408	42	$95,369	—	—	—
C005	City	605	4	$115,321	—	—	—
C006	City	510	1	$95,369	—	—	—
C007	City	453	6	$120,754	—	—	—
C008	City	434	0	$95,725	—	—	—
C010	City	450	89	$88,840	—	—	—
C011	City	394	4	$106,017	—	—	—
C012	City	507	4	$115,321	—	—	—
C014	City	441	39	$95,725	—	—	—
C016	City	561	29	$120,878	—	—	—
C018	City	622	2	$111,223	—	—	—
C021	City	444	54	$115,321	—	—	—
C022	City	529	6	$111,223	—	—	—
C023	City	411	126	$95,369	—	—	—
C024	City	396	1	$132,350	—	—	—
C030	City	474	9	$95,725	—	—	—
C031	City	538	5	$106,017	—	—	—
C032	City	1,051	4	$95,369	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 11722 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

11749 — Islandia village, NY (2.1 mi)
11752 — North Great River CDP, NY (2.1 mi)
11788 — Hauppauge CDP, NY (2.5 mi)
11717 — Brentwood CDP, NY (2.9 mi)
11716 — Bohemia CDP, NY (3.3 mi)
11751 — Islip CDP, NY (3.8 mi)
11730 — East Islip CDP, NY (3.9 mi)
11779 — Ronkonkoma CDP, NY (4.8 mi)

Areas that include 11722

Central Islip, NY ZIP codes — 2 ZIP codes
Suffolk County ZIP codes — 108 ZIP codes
New York ZIP code data

Where it ranks

Mail every home in 11722

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) 11722, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 11722 in?: 11722 is a Central Islip, NY mailing address. By land area, 97% lies inside Central Islip and 3% lies inside Islip.
What county is 11722 in?: 11722 is in Suffolk County.
What is the population of 11722?: About 39,033 people (±2,623), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 37,491.
What is the median household income in 11722?: $114,049 (±$6,479), 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 11722?: 20 USPS carrier routes with 10,045 residential and 482 business mailboxes (10,528 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 11722?: The closest, measured center to center: 11749 (2.1 mi, Islandia), 11752 (2.1 mi, North Great River), 11788 (2.5 mi, Hauppauge), 11717 (2.9 mi, Brentwood), 11716 (3.3 mi, Bohemia) and 11751 (3.8 mi, Islip).

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