Central Islip, NY — City Data, Demographics & Statistics
Suffolk County · New York
City DNA
A unique fingerprint for Central Islip based on 8 key metrics — compared to averages.
Quick Stats
Population
37,751
2023 ACS
Median Income
$110,166
2023
Median Home Value
$405,000
2023
Median Rent
$2,106
2023
Median Age
33.9
Unemployment
5.6%
Cost of Living Index
180.8
100 = national avg
Central Islip is a city in Suffolk County, New York, with a population of 37,751 according to the 2023 American Community Survey. Central Islip is one of the communities in New York.
The median household income in Central Islip is $110,166, and the median home value is $405,000. The cost of living index is 180.8 (where 100 = national average), and the median rent is $2,106 per month. The unemployment rate is 5.6%, and the median age is 33.9 years.
People & Demographics
Source: U.S. Census Bureau ACS (2023)Population
Total Population
37,751
Male
18,979
50.3%
Female
18,772
49.7%
Median Age
33.9
Education & Household
Bachelor's or Higher
11.7%
High School or Higher
33.2%
Foreign Born
37.6%
Veterans
2.0%
Married
32.2%
Avg Household Size
3.9
Marital Status by Age
Race & Ethnicity
Diversity Index
0.373
Simpson's Index (0-1)
Largest Group
Other
28.8%
Foreign Born
37.6%
Hispanic/Latino Ethnicity
Hispanic/Latino is an ethnicity, not a race. People of any race can identify as Hispanic. This percentage overlaps with the racial categories above.
Hispanic/Latino
61.7%
23,304 people
Not Hispanic/Latino
38.3%
Hispanic/Latino Detail
Source: U.S. Census Bureau ACS (2023)Asian Detail
Source: U.S. Census Bureau ACS (2023)Native Hawaiian & Pacific Islander Detail
Source: U.S. Census Bureau ACS (2023)American Indian & Alaska Native Detail
Source: U.S. Census Bureau ACS (2023)Languages Spoken
Total Speakers (5+)
35,290
English Only
39.6%
#1 Non-English Language
Spanish
19,319 speakers
Limited English
27.0%
Language Distribution
English Proficiency
Speaks English Very Well
73.0%
Limited English Proficiency
27.0%
Veterans & Military
Total Veterans
758
2.0% of population
Disability Rate
23.8%
180 with disability
Veteran Median Income
$55,345
Unemployment Rate
15.5%
Period of Service
Veteran Age Distribution
Male Veterans
706
93.1%
Female Veterans
52
6.9%
Veteran vs Non-Veteran Income
Veteran Income
$55,345
Non-Veteran Income
$40,652
Difference
$14,693
36.1% higher
Disability Status
With Disability
180
Without Disability
578
Disability Rate
23.8%
Ancestry & Heritage
Total Reporting Ancestry
9,895
#1 Ancestry
West Indian
5.6% (2,114)
#2 Ancestry
Italian
4.8% (1,805)
#3 Ancestry
Irish
3.7% (1,400)
Top 20 Ancestries
Source: U.S. Census Bureau ACS (2023)Families & Households
Total Households
9,713
Family Households
6,985
71.9%
Married Couples
4,185
43.1%
Non-Family Households
2,728
28.1%
Single Mother Households
1,876
19.3%
Single Father Households
924
9.5%
Living Alone
2,077
21.4%
Children Under 18
Total Children
6,474
In Married Couple
4,209
65.0%
With Single Mother
1,776
27.4%
With Single Father
489
7.6%
Family Income
Median Family Income
$114,788
Married Couple Income
$130,164
Single Mother Income
$75,714
Single Father Income
$113,882
Avg Family Size
3.9
Avg Non-Family Size
3.2
Grandparents w/ Grandchildren
1,610
Grandparents Responsible
194
Economy
Source: U.S. Census Bureau ACS (2023)Income Overview
Median Household Income
$110,166
+50% vs national
Per Capita Income
$33,129
-11% vs national
Poverty Rate
9.3%
-31% vs national
Gini Index
0.3940
0 = perfect equality
Unemployment
5.6%
+7% vs national
SNAP Recipients
15.7%
of households
How Central Islip Compares
Central Islip vs Similar Cities
Compared to cities with 25,000 - 50,000 residents. Central Islip is highlighted.
Median Household Income
Central Islip, NY has a median household income of $110,166, making it the 3,606th highest median household income out of 28,123 cities in our database. This means that Central Islip has a higher median household income than 87% of all the cities we measured.
Per Capita Income
Central Islip, NY has a per capita income of $33,129, making it the 14,001st highest per capita income out of 28,123 cities in our database. This means that Central Islip has a higher per capita income than 50% of all the cities we measured.
Poverty Rate
Central Islip, NY has a poverty rate of 9.3%, making it the 17,579th highest poverty rate out of 31,262 cities in our database. This means that Central Islip has a higher poverty rate than 44% of all the cities we measured.
Unemployment Rate
Central Islip, NY has a unemployment rate of 5.6%, making it the 10,137th highest unemployment rate out of 31,012 cities in our database. This means that Central Islip has a higher unemployment rate than 67% of all the cities we measured.
Where Do You Stack Up?
Enter your household income to see how you compare to other households in Central Islip. The median household income here is $110,166.
Income Distribution
Employment Snapshot
Unemployment Rate
5.6%
+12% vs NY avg
Labor Force
19,448
Employed
18,341
Mean Commute
26 min
How People Get to Work
Employment by Sector
Education & Workforce
Bachelor's Degree+
11.7%
of adults 25+
High School Diploma+
33.2%
of adults 25+
Median Age
33.9
Work from Home
6.6%
of workers
Top Occupations & Wages
Source: Bureau of Labor Statistics OEWS (2024)
Data represents the New York-Newark-Jersey City, NY-NJ metro area
Highest-Paying Job
Software Developers
Top Median Wage
$162.0K
per year
Occupations Tracked
20
Cost of Living
Overall Index
180.8
100 = national avg
+80.8 vs national average
Living Wage (1 Adult)
$79,556
per year
Living Wage (Family of 4)
$188,041
per year
Cost Index by Category
100 = national average. Higher = more expensive.
Fair Market Rent
Source: HUD
1 Bedroom
$2,379
per month
2 Bedroom
$2,747
per month
The median household income in Central Islip, NY is $110,166, which is 50.5% above the national average of $73,224. Per capita income is $33,129. The poverty rate of 9.3% is lower than the NY state average of 10.6%. The Gini index of income inequality is 0.3940, where 0 represents perfect equality and 1 represents maximum inequality. The unemployment rate is 5.6%, compared to the state average of 5.0%. The labor force is 19,448. 11.7% of adults hold a bachelor's degree or higher. The average commute time is 26 minutes, with 6.6% working from home. About 75.2% of workers drive alone to work. The overall cost of living index is 180.8, which is 80.8% above the national average. Housing costs are above the national average at an index of 248.5. A single adult needs to earn approximately $79,556 per year to cover basic expenses.
Housing & Real Estate
Market SnapshotRedfin — January 2026
Median Sale Price
$537,000
Median List Price
$599,995
Price Per Sq Ft
$348
Days on Market
37
Active Inventory
39
Months of Supply
2.1
Seller's market
Zillow Home Value
$552,880
ZHVI — January 2026
Zillow Rent Index
$2,884
ZORI — January 2026
Market CompetitivenessRedfin
Sold Above List
63.2%
Off Market in 2 Weeks
9.1%
Sale-to-List Ratio
102.1%
Seller's market
Price TrendsRedfin
Market ActivityRedfin
Homes Sold
19
New Listings
11
Pending Sales
11
Price Per Square FootRedfin
Median Sale $/SF
$348
Median List $/SF
$416
Central Islip vs Similar CitiesCensus ACS / Redfin
Compared to cities with 25,000 - 50,000 residents. Central Islip is highlighted.
Median Home Value
Central Islip, NY has a median home value of $405,000, making it the 4,439th highest median home value out of 27,993 cities in our database. This means that Central Islip has a higher median home value than 84% of all the cities we measured.
Median Rent
Central Islip, NY has a median rent of $2,106, making it the 1,387th highest median rent out of 22,337 cities in our database. This means that Central Islip has a higher median rent than 94% of all the cities we measured.
Median Price Per Sq Ft
Central Islip, NY has a price per square foot of $348, making it the 2,611th highest price per square foot out of 20,748 cities in our database. This means that Central Islip has a higher price per square foot than 87% of all the cities we measured.
Rent Burden
Central Islip, NY has a rent burden of 22.9%, making it the 5,218th highest rent burden out of 21,928 cities in our database. This means that Central Islip has a higher rent burden than 76% of all the cities we measured.
Census Housing DataU.S. Census Bureau ACS 2023
Median Home Value
$405,000
Median Rent
$2,106
Total Housing Units
10,660
Vacancy Rate
8.9%
Owner Occupied
77.1%
Renter Occupied
22.9%
Median Property Tax
$9,155
per year
Monthly Cost (w/ Mortgage)
$2,525
Housing Types
Property TaxU.S. Census Bureau ACS 2023
Median Property Tax
$9,155
per year
Effective Tax Rate
2.26%
of home value
Median Home Value
$405,000
Estimated Mean Tax
$8,638
The effective property tax rate is calculated by dividing the median annual property tax ($9,155) by the median home value ($405,000). In Central Islip, NY, this works out to an effective rate of 2.26%. This is above the national average of approximately 1.1%.
The current median sale price in Central Islip, NY is $537,000 according to Redfin data. Homes spend a median of 37 days on the market. 63.2% of homes sold above asking price. The market has 2.1 months of supply. The median price per square foot is $348. Zillow's observed rent index is $2,884/month. About 77.1% of housing units are owner-occupied. The median year homes were built is 1969. There are 10,660 total housing units. Homeowners pay a median annual property tax of $9,155. The effective tax rate is 2.26%, above the national average.
Crime data is not yet available for Central Islip. The FBI UCR/NIBRS program does not cover all jurisdictions.
Natural Hazard Risk
Source: FEMA National Risk IndexRisk Score
97.3
Relatively High
Expected Annual Loss
97.9
Score (0-100)
Social Vulnerability
21.6
Score (0-100)
Community Resilience
94.1
Score (0-100)
Scores range from 0 (lowest risk) to 100 (highest risk) relative to all U.S. communities. Data from FEMA National Risk Index.
Disaster History & Federal Spending
Source: FEMATotal Declarations
36
Public Assistance
$390.5M
Individual Assistance
$33.1M
Most Common Type
Hurricane
13 declarations
Public Assistance by Category
Showing 20 of 40 disasters
PA = FEMA Public Assistance (infrastructure recovery). IA = Individual Assistance (homeowner/renter aid).
Flood Insurance (NFIP)
Source: FEMA NFIPTotal Claims
33,914
Total Claims Paid
$1,114,060,627
Avg Claim Payout
$32,850
County-level NFIP data from FEMA National Flood Insurance Program.
Hazard Mitigation
Source: FEMA Hazard Mitigation AssistanceMitigation Projects
75
Federal Funding
$30,072,610
Properties Protected
127
Avg Benefit-Cost Ratio
2.66
BCR
Top Mitigation Project Types
| Project Type | Projects | Federal $ |
|---|---|---|
| 202.2: Elevation of Private Structures - Coastal | 10 | $685,212 |
| 200.1: Acquisition of Private Real Property (Structures and Land) - Riverine; 200.2: Acquisition of Private Real Property (Structures and Land) - Coastal | 6 | $0 |
| 91.1: Local Multihazard Mitigation Plan | 5 | $1,620,522 |
| 200.2: Acquisition of Private Real Property (Structures and Land) - Coastal | 5 | $3,750,000 |
| 202.1: Elevation of Private Structures - Riverine | 4 | $665,901 |
Federally funded projects to reduce future disaster risk. Only includes completed or obligated projects.
Central Islip has a relatively high overall natural hazard risk rating according to FEMA's National Risk Index. The top hazard risks are winter weather, coastal flood, strong wind. The area has had 36 federal disaster declarations. The most common disaster type is hurricane (13 declarations). 33,914 flood insurance claims have been filed in the area. FEMA has obligated $390,460,380 in public assistance recovery funding. $33,051,039 has been distributed in individual assistance to disaster-affected residents. 75 hazard mitigation projects have been funded to reduce future risk.
Health
Community Health
Source: CDC PLACES
Obesity Rate
35.1%
1.0pp below the national average
Depression Rate
14.7%
8.8pp below the national average
Diabetes Rate
12.0%
near the national average
Uninsured Rate
16.3%
5.7pp above the national average
Health Scorecard
Higher scores indicate better health outcomes relative to the national average (50 = average)
Health Outcomes
Age-adjusted prevalence rates. Green bars indicate rates below the national average; red indicates above.
High Cholesterol
36.5%
Arthritis
20.2%
Cancer (excl. skin)
5.2%
Teeth Lost (65+)
13.9%
Health Risk Behaviors
Prevention & Screening
Green bars indicate rates above the national average (more preventive care); red indicates below.
Mental Health & Wellbeing
Frequent Mental Distress
16.4%
14+ days in past month
Depression
14.7%
Loneliness
34.2%
Lack of Support
30.4%
Disability Prevalence
Any Disability
31.0%
Mobility
14.3%
Cognitive
14.8%
Hearing
4.8%
Vision
6.6%
Self-Care
4.4%
Independent Living
8.3%
Health-Related Social Needs
Prevalence of social risk factors affecting community health
Central Islip has an obesity rate of 35.1%, which is 1.0pp below the national average. The depression rate is 14.7%, 8.8pp below the national average. About 16.3% of adults lack health insurance. 78.8% of residents had an annual checkup in the past year.
Nearby Hospitals
Source: CMS Hospital Compare
Nearest Hospitals
5
With Emergency Services
4
Avg CMS Rating
3.3 / 5
Nearest Hospital
4.9 mi
St Catherine Of Siena Hospital...
| Hospital | Distance | Type | Rating | ER |
|---|---|---|---|---|
| St Catherine Of Siena Hospital Medical Center | 4.9 mi | Acute Care Hospitals | 4/5 | Yes |
| Ns/Lij Hs Southside Hospital | 5.6 mi | Acute Care Hospitals | 3/5 | Yes |
| Good Samaritan Hospital Medical Center | 7.4 mi | Acute Care Hospitals | 2/5 | Yes |
| Sagamore Children'S Psychiatric Center | 9.0 mi | Psychiatric | — | — |
| Suny/Stony Brook University Hospital | 10.0 mi | Acute Care Hospitals | 4/5 | Yes |
Infrastructure
Commute Overview2023 ACS
Mean Commute
26 min
+12% vs national
Drive Alone
75.2%
-4% vs national
Public Transit
3.1%
+243% vs national
Work From Home
6.6%
-29% vs national
Carpool
12.9%
Walk / Bike
1.3%
combined
How Central Islip's Commute ComparesCensus ACS 2023
How People Get to WorkCensus ACS 2023
Commute Mode BreakdownCensus ACS 2023
Traffic Fatalities
Source: NHTSA FARS (2023)Fatalities
2
2023
2-Year Avg
3
fatalities/yr
Pedestrian
2
Nighttime
2
dark conditions
| Year | Crashes | Fatalities | Alcohol | Pedestrian | Cyclist |
|---|---|---|---|---|---|
| 2023 | 2 | 2 | 0 | 2 | 0 |
| 2020 | 3 | 3 | 0 | 2 | 0 |
Data from NHTSA Fatality Analysis Reporting System (FARS). Includes only crashes involving at least one fatality.
The average commute in Central Islip, NY is 26 minutes, which is 11.5% above the national average of 23 minutes. 75.2% of workers drive alone, compared to the national average of 78.7%. 6.6% work from home, which is below the NY state average of 11.1%. Public transit is used by 3.1% of commuters, compared to the national average of 0.9%. 12.9% of workers carpool. 0.9% commute by bicycle. In 2023, there were 2 traffic fatalities from 2 fatal crashes. 2 were pedestrians.
Internet & Broadband Access
Source: Census ACSBroadband Access
90.0%
of households
Cable / Fiber / DSL
77.8%
of households
No Internet
7.7%
of households
Total Households
9,713
Internet Subscription Types
Device Ownership
Source: Census ACSHas Computer
94.7%
of households
Smartphone
91.0%
of households
Desktop / Laptop
82.9%
of households
Tablet
57.9%
of households
Percentage of households with each device type. Data from the U.S. Census Bureau ACS (2023 5-year estimates, tables B28001 & B28002).
Electricity Rates
Source: U.S. Energy Information Administration (2024)Residential Rate
24.4¢
per kWh
+28% vs 25,000 - 50,000 avg
Commercial Rate
18.8¢
per kWh
+21% vs 25,000 - 50,000 avg
Industrial Rate
9.2¢
per kWh
-23% vs 25,000 - 50,000 avg
Avg Monthly Bill
$140
residential
-5% vs 25,000 - 50,000 avg
43% above the national average of 17.1¢/kWh
Residential electricity in New York averages 24.4¢ per kWh, compared to the national average of 17.1¢. The average monthly electric bill is $140. State-level averages from EIA Electric Sales & Revenue data (2024).
Central Islip vs Similar Cities
Source: EIA (2024)Comparing electricity rates with randomly selected cities of similar population (25,000 - 50,000). Each city represents its state's average rate.
Residential Rate (¢/kWh)
Commercial Rate (¢/kWh)
Industrial Rate (¢/kWh)
Average Monthly Bill
90.0% of households in Central Islip have broadband internet access. 77.8% have cable, fiber, or DSL service. 9.7% rely solely on cellular data without a wired connection. 7.7% of households have no internet access. 8.3% use only a smartphone without a desktop or laptop.
Politics & Government
County-level data: Election results are reported at the county level. Central Islip is located in Suffolk County, NY. Results reflect all voters in the county, not just those in Central Islip.
Election Overview
Source: Suffolk County (2024)2024 Winner
Republican
Dem Votes
341,812
45.0%
GOP Votes
417,549
55.0%
Total Votes
759,361
Margin
R+10.0%
Shift from 2020
R+10.0pp
vs prior election
Election History
Source: County-Level Election Results| Year | Dem Votes | GOP Votes | Total | Dem % | GOP % | Margin |
|---|---|---|---|---|---|---|
| 2024 | 341,812 | 417,549 | 759,361 | 45.0% | 55.0% | R+10.0 |
| 2020 | 381,021 | 381,253 | 771,541 | 49.4% | 49.4% | R+0.0 |
| 2016 | 276,953 | 328,403 | 625,720 | 44.3% | 52.5% | R+8.2 |
In the 2024 presidential election, Suffolk County recorded 759,361 total votes. Republicans won the county with 55.0% of the vote compared to 45.0% for Democrats, a margin of R+10.0%. Compared to 2020, the margin shifted R+10.0pp from the previous election. Since 2016, Suffolk County has shifted 1.8 percentage points toward Republicans.
Nonprofits Overview
Source: IRS Exempt Organizations BMFTotal Nonprofits
115
Total Assets
$55.4M
Total Income
$70.3M
Per 10K Residents
30.5
nonprofits
-62.9% vs peers avg
Orgs with >$1M Assets
7
Median Assets
$229K
Oldest Active
1941
ruling year
Newest Org
2026
ruling year
Nonprofits by Category
Source: IRS / NTEE ClassificationTop 10 hold $52.8M of $55.4M total
Nonprofit Size Distribution
Source: IRS Exempt Organizations BMFNumber of nonprofits by total asset size
When Were Nonprofits Founded?
Source: IRS Ruling DateNumber of currently active nonprofits by founding decade
Nonprofits per 10K Residents vs Similar Cities
Source: IRS BMF + Census ACSCompared to cities with population 25,000 - 50,000
Largest Nonprofits in Central Islip
Source: IRS Exempt Organizations BMFCentral Islip, NY has 115 registered 501(c)(3) nonprofit organizations with combined assets of $55.4M. The most common category is Religion-Related, with 31 organizations. 7 nonprofits have assets exceeding $1 million. That works out to 30.5 nonprofits per 10,000 residents. The oldest active nonprofit dates back to 1941.
SBA Lending Overview
Source: SBA FOIA Loan-Level DataTotal SBA Loans
115
Total Approved
$33.4M
Jobs Supported
1,486
Per 10K Residents
30.5
SBA loans
-72.7% vs peers avg
Unique Lenders
34
Top Lender
Bank of America, National Association
31 loans
Top Industry
Construction
Data Span
1992–2026
Loan Program Breakdown
Source: SBA FOIALoans
102
Total Amount
$23.6M
Avg Loan
$231,618
Median Loan
$50,000
SBA Guaranteed
$16.9M(71%)
Jobs Supported
859
Loans
13
Total Amount
$9.8M
Avg Loan
$754,308
Median Loan
$395,000
Recent Activity (Last 5 Years)
Source: SBA FOIARecent Loans
18
16% of all-time total
Recent Amount
$3.9M
12% of all-time total
Avg Recent Loan
$216,911
Top Industries Funded
Source: SBA FOIA / NAICS CodesSBA Loans per 10K Residents vs Similar Cities
Source: SBA FOIA + Census ACSCompared to cities with population 25,000 - 50,000
Top SBA Borrowers
Source: SBA FOIA| Business | Loans | Amount |
|---|---|---|
| L&j Restaurant Manufacturing Import (ny) | 1 | $3.8M |
| Icell Incorporated | 1 | $2.6M |
| 54 Islip Food Corp. | 1 | $2.0M |
| 1069 Islip Gas Inc. | 1 | $1.9M |
| M & J Ex Incorporated | 1 | $1.9M |
| Wm.j. Lot Realty Llc | 1 | $1.5M |
| M.c. Islip Car Wash & Auto Cen | 1 | $1.3M |
| Islip Farmer's Market Inc | 1 | $1.2M |
| Keshtgar | 1 | $1.2M |
| Kevin Segura State Farm Agency Inc. | 1 | $1.1M |
Central Islip, NY has received 115 SBA loans totaling $33.4M in approved funding between 1992 and 2026. The 7(a) program accounts for 102 loans (89% of the total), supporting 859 jobs. The 504 program, focused on real estate and large equipment, has funded 13 loans totaling $9.8M. The most common industry receiving SBA funding is Construction. The most active SBA lender in Central Islip is Bank of America, National Association with 31 loans. That works out to 30.5 SBA loans per 10,000 residents.
ZIP Code Overview
Source: Census ACSZIP Codes
37
Total Population
719,899
Avg Median Income
$138,619
Avg Home Value
$565,354
ZIP Code Details
Source: Census ACS| ZIP Code | Population | Median Income | Home Value | Median Rent | Area (sq mi) |
|---|---|---|---|---|---|
| 11703 | 17,205 | $130,140 | $469,900 | $2,206 | 3.0 |
| 11704 | 40,285 | $127,034 | $485,400 | $2,089 | 7.9 |
| 11705 | 8,256 | $161,214 | $618,300 | $2,193 | 3.4 |
| 11706 | 68,648 | $115,112 | $464,300 | $1,885 | 16.9 |
| 11715 | 3,796 | $157,905 | $593,500 | $2,200 | 1.7 |
| 11716 | 9,750 | $120,344 | $508,500 | $2,425 | 8.6 |
| 11717 | N/A | N/A | N/A | N/A | 10.7 |
| 11718 | 3,185 | $203,750 | $710,600 | $1,986 | 0.9 |
| 11720 | 28,669 | $128,015 | $471,600 | $2,377 | 8.2 |
| 11722 | 38,443 | $110,365 | $407,100 | $2,094 | 7.0 |
| 11725 | 29,050 | $168,324 | $643,000 | $2,358 | 9.7 |
| 11729 | 26,647 | $138,350 | $496,100 | $1,889 | 6.2 |
| 11730 | 14,376 | $146,190 | $577,600 | $2,508 | 4.5 |
| 11731 | 29,891 | $158,819 | $622,100 | $2,261 | 8.3 |
| 11738 | 20,246 | $139,008 | $455,000 | $2,789 | 5.0 |
| 11739 | 1,191 | $133,393 | $840,400 | N/A | 3.5 |
| 11741 | 26,356 | $138,417 | $504,000 | $2,434 | 7.5 |
| 11742 | 13,194 | $126,563 | $475,600 | $2,224 | 5.2 |
| 11746 | 66,883 | $158,309 | $664,900 | $1,907 | 24.1 |
| 11749 | 3,581 | $112,435 | $451,700 | $1,781 | 2.2 |
| 11751 | 13,152 | $116,328 | $501,900 | $2,238 | 4.0 |
| 11752 | 8,990 | $148,538 | $482,300 | $2,512 | 4.0 |
| 11754 | 17,660 | $123,406 | $595,300 | $1,837 | 7.4 |
| 11755 | 11,953 | $120,306 | $558,900 | $2,197 | 3.3 |
| 11767 | 14,495 | $148,762 | $615,800 | $2,029 | 4.3 |
| 11769 | 9,031 | $128,419 | $585,800 | $2,344 | 4.4 |
| 11770 | 124 | $101,250 | $730,800 | N/A | 0.6 |
| 11779 | 38,273 | $117,684 | $465,400 | $2,103 | 12.5 |
| 11780 | 15,586 | $141,576 | $702,900 | $2,322 | 11.5 |
| 11782 | 14,537 | $144,786 | $614,300 | $2,338 | 5.5 |
| 11784 | 25,986 | $105,268 | $435,600 | $2,273 | 5.5 |
| 11787 | 34,656 | $141,505 | $642,200 | $2,349 | 14.9 |
| 11788 | 17,092 | $148,946 | $635,700 | $2,689 | 8.6 |
| 11790 | 19,934 | $157,695 | $590,000 | $2,652 | 7.3 |
| 11795 | 25,063 | $171,068 | $598,800 | $2,660 | 5.7 |
| 11796 | 3,715 | $162,443 | $572,100 | $2,519 | 1.3 |
| 11798 | N/A | N/A | N/A | N/A | 5.0 |
Central Islip, NY has 37 ZIP codes with a combined population of 719,899. The average median household income across all ZIP codes is $138,619. The average median home value is $565,354. The average median monthly rent is -$38,093,105.
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