Real Estate Investing in Islandia, New York (11749)

Everything the listing leaves out — vacancy, rent trend, cap rate, landlord climate. All free.

Suffolk County • Population: 3,581 • Data updated: September 2026

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Should you buy in 11749 (Islandia, NY)? Our answer, based on the numbers below.

🏠 For Homebuyers
MIXED
Grade C (64/100)

Mixed — home prices are stretched relative to local incomes. Run the math on your specific situation.

📈 For Investors
MIXED
3.0 / 5 (47/100)

A middle-of-the-road market. Workable, but the best opportunities may be nearby ZIPs rather than this one.

⚠️ Risks to Know
2 flags
  • Tenant-protective state: Landlord rating 1.0/5 — slower evictions, more regulations.
  • High price-to-rent: Price-to-rent ratio 25.6 — hard to cash-flow at these prices.

• Modeled rent — no observed market rent for this ZIP; the figure is estimated from HUD fair-market rent.

What’s happening in Islandia, NY (11749)?

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3.0/ 5

Investability

Overall investment appeal

4.0/ 5

Appreciation

Long-term value growth

3.0/ 5

Cashflow ROI

Rental yield potential

Avg Home Value $644,226
Avg Monthly Rent $2,097
1% Rule ✗ Does Not Meet
Median Income $109,964
% Renters 3.2%

Market Analysis: 11749 Islandia

The 11749 ZIP in Islandia, NY is a local-operator market. Outside capital chasing a $644K entry has to pair deep knowledge with the discount.

For an experienced owner, 11749 can be a a viable market for hunting ground — but the discount at $644K reflects genuine risk that outside investors often underestimate.

Nearby ZIPs in Islandia have seen price recovery that 11749 has not matched. Suffolk County data supports the view that the spread is structural rather than temporary.

Demographically, 11749 is a market where tenant selection matters more than unit finishes. Operators who understand that tend to do fine; those who do not tend to learn why the ZIP trades at a discount.

Strategy in 11749 is an operator game, not a passive one. Stepping back, entry prices of $644K are inviting, the management lift is real and non-optional.

Explore the Data — Click a Tab Below
🏦 Current 30-yr Fixed Mortgage Rate: 6.76% as of Sep 10 Source: Freddie Mac PMMS

Here's what matters if you're considering buying a home in Islandia:

C+ Average
Buy Confidence Score: 65/100
Affordability
10/25
Appreciation
25/25
Stability
7/20
Timing
8/15
Rental backup
15/15
Affordability
Expensive
Homes cost 5.9× the median income
Value Trend
Rising (+6.8%)
How home values changed in the past year
Rental Backup
Strong
Could rent for $2,097/mo if you need to move
Market Conditions
BALANCED
Even conditions for buyers and sellers
Bottom Line: Mixed signals in this market. Research specific properties carefully and be prepared to negotiate.

Market Trends

Home Value History (with trend line)

$676K$583K$491K$398K$305K$213KJun 2006Jul 2016Jul 2026

📊 How Does 11749 Compare?

Metric 11749 Islandia New York
Home Value $644,226 $644,226 $505,608
5-Year CAGR 8.9% 8.9% 6.6%
Avg Rent $2,097 $2,097 -
Cap Rate 2.5% 2.5% -
💡 Why Invest in 11749? Click to expand

With a 3/5 investability rating, this ZIP shows solid fundamentals for buy-and-hold investors.

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Landlord Ground Truth

Real numbers from people who own or manage rentals in ZIP 11749 (Islandia, NY). Anonymous, moderated, never written by AI.

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Property managers serving Suffolk County

Manage rentals here? List your business →

CXA Management provides property management services. summary from their website

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Eminent Properties Ltd is a property management company. summary from their website

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Listings are shown for convenience — Repit doesn’t endorse or vet these companies. Ratings shown come only from email-verified visitors.

Investability
Good
Cap Rate
2.5%
Low
5yr Growth
+8.9%
Strong

📊 Market Snapshot

Home Value $644,226
Monthly Rent $2,097
Price-to-Rent 25.6:1
1% Rule ✗ Fails

💰 Return Metrics

Gross Yield 3.9%
Cap Rate 2.5%
5-Year IRR 11.4%

📈 Home Appreciation

1-Year +6.8% ▲
3-Year CAGR +10.3% ▲
5-Year CAGR +8.9% ▲
10-Year CAGR +8.8% ▲

🏠 Rent Trends

1-Year N/A
3-Year CAGR N/A
5-Year CAGR N/A
Negative Leverage — IRR / Tax Play Cap Rate: 2.5%  |  30yr Rate: 6.8%
Leverage reduces cash returns at current rates.

The current 30-yr mortgage rate (6.8%) exceeds the estimated cap rate (2.5%). Financing reduces your cash-on-cash return below the cap rate. Markets like this may still make sense as IRR plays — factoring in appreciation, depreciation, and a future refinance when rates drop.

Run an IRR Analysis →

⚠️ Risk Signals

Composite view of factors that can impact a ZIP's stability and your downside risk.

Vacancy
7.1%
Low risk
Landlord Climate
1.0/5
Protective
Value Trend (5yr)
+8.9%
Growing
Eviction process: Slow Rent control: Unfavorable

Demographics in 11749

Population: 3,581

💰 Median Household Income
$109,964
This area
$109,964
State
$86,376
USA
$74,580
🏠 Renter Occupied
3.2%
This area
3.2%
State
26.4%
USA
34.0%
💼 Unemployment Rate
2.7%
This area
2.7%
State
-24.2%
USA
3.7%
🎓 College Educated
28.3%
This area
28.3%
State
4.2%
USA
33.7%
👤 Median Age
38.0 years
This area
38.0 years
State
7.4 years
USA
38.9 years
🏚️ Vacancy Rate
7.1%
This area
7.1%
State
19.4%
USA
10.5%
👥 Population by Ethnicity
White 43.0%
Other/Mixed 35.8%
Hispanic/Latino 31.2%
Black/African American 12.2%
Asian 9.0%
👶 Under 18
19.1%
This area
19.1%
USA
22.0%
👴 65 and Over
15.4%
This area
15.4%
USA
17.3%
📊 Poverty Rate
1.7%
This area
1.7%
USA
11.5%

Crime & Safety

🚧

Crime & Safety Data Coming Soon

We're integrating comprehensive crime statistics including violent crime rates, property crime, and safety scores to help you make informed investment decisions.

Expected: Q1 2025

🎓 Schools in 11749

A+ Avg School Grade
1 Schools
13.2:1 Avg Class Size
$29,818 Avg Per Pupil

Schools in This ZIP Code

A+ Excellent

ANDREW T MORROW SCHOOL

📚 K – 08 School
👥
794 Students
👨‍🏫
13.2:1 Class Size
💰
$29,818 Per Student

Nearby Schools (5 more)

Schools in adjacent ZIP codes that may serve this area

A+ Excellent

BRETTON WOODS ELEMENTARY SCHOOL

📚 Pre-K – 05 Elementary
📍 1 CLUB LN, HAUPPAUGE
👥
513 Students
👨‍🏫
9.6:1 Class Size
💰
$36,436 Per Student
A+ Excellent

CHEROKEE STREET ELEMENTARY SCHOOL

📚 K – 05 Elementary
📍 130 CHEROKEE ST, RONKONKOMA
👥
623 Students
👨‍🏫
10.2:1 Class Size
💰
$40,472 Per Student
A+ Excellent

GREAT HOLLOW MIDDLE SCHOOL

📚 06 – 08 Middle
📍 150 SOUTHERN BLVD, NESCONSET
👥
771 Students
👨‍🏫
10.9:1 Class Size
💰
$32,130 Per Student
A+ Excellent

HAUPPAUGE MIDDLE SCHOOL

📚 06 – 08 Middle
📍 600 TOWN LINE RD, HAUPPAUGE
👥
733 Students
👨‍🏫
10.2:1 Class Size
💰
$36,436 Per Student
A+ Excellent

HELEN B DUFFIELD ELEMENTARY SCHOOL

📚 K – 05 Elementary
📍 600 1ST ST, RONKONKOMA
👥
333 Students
👨‍🏫
11.6:1 Class Size
💰
$40,472 Per Student
About Repit School Scores

Traditional school ratings rely heavily on standardized test scores, which often reflect family income more than school quality. Repit takes a different approach.

We evaluate schools based on factors that research shows actually impact educational outcomes:

  • Class Size — Smaller classes mean more individual attention
  • School Funding — Resources available for programs, staff, and facilities
  • Community Factors — Neighborhood characteristics that influence student success
  • School Environment — Size, type, and structure

Scores are updated annually using federal education data.

🎓 Nearby Colleges & Universities

8 Nearby 2,927 Off-Campus Students
C
Access Careers-Islandia
314 students · 0.5 mi
C
New York Institute of Beauty
241 students · 1.0 mi
C+
Long Island Beauty School-Hauppauge
119 students · 2.2 mi
C+
Eastern Suffolk BOCES
31 students · 5.3 mi
C
Eastern Suffolk BOCES
275 students · 6.4 mi
C
Suffolk County Community College
20,053 students · 6.7 mi
B+
Stony Brook University
25,865 students · 7.9 mi
C+
Western Suffolk BOCES
274 students · 10.3 mi

Investor Insight: With 2,927 students living off-campus nearby, this area has strong rental demand from the college population.

Frequently Asked Questions

What real estate strategy is ideal for Islandia, NY?

Islandia, NY investors pursuing careful cash-flow rentals with hands-on management. The underlying economics ($644K prices, $2,097/mo rents) make it a reasonable choice.

Are renters plentiful in Islandia, NY?

Working renters make up the core of the Islandia, NY tenant base. The pool is reasonable for investors targeting long-term holds.

How much does a house cost in Islandia, NY?

In Islandia, NY the median home value sits at $644K. Against the broader NY market, that reads as reasonable for most investors.

Should investors worry about vacancy in Islandia, NY?

Vacancy in Islandia, NY is elevated, which keeps landlord downtime on reasonable timelines. Most properties lease within the standard window at $2,097/mo.

Is Islandia, NY good for house hacking?

House hacking in Islandia, NY is a challenging. With home values around $644K and rents at $2,097/mo, owner-occupants can offset a meaningful share of PITI.

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How 11749 ranks in New York-Newark-Jersey City, NY-NJ-PA

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