Real Estate Investing in Mercer Island, Washington (98040)

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

King County • Population: 25,282 • Data updated: September 2026

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Should you buy in 98040 (Mercer Island, WA)? Our answer, based on the numbers below.

🏠 For Homebuyers
WEAK FIT
Grade F (37/100)

Multiple negative signals. Better options likely exist nearby.

📈 For Investors
WEAK
2.0 / 5 (33/100)

Structural challenges here. The numbers may look cheap but operational risk is high. Only for experienced, hands-on investors.

⚠️ 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 69.6 — hard to cash-flow at these prices.

What’s happening in Mercer Island, WA (98040)?

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2.0/ 5

Investability

Overall investment appeal

2.0/ 5

Appreciation

Long-term value growth

3.0/ 5

Cashflow ROI

Rental yield potential

Avg Home Value $2,293,587
Avg Monthly Rent $2,746
1% Rule ✗ Does Not Meet
Median Income $190,985
% Renters 32.0%

Market Analysis: 98040 Mercer Island

The 98040 ZIP in Mercer Island, WA is a local-operator market. Outside capital chasing a $2.3M entry has to pair deep knowledge with the discount.

Rent of $2,746/mo on a $2.3M basis reads well until vacancy, delinquency, and capex enter the model. The honest cap rate in 98040 sits below the stated 0.0% once reality is priced in.

ZIP 98040's metrics run below King County's averages on price growth and tenant stability. Investors who ignore that regional gap tend to relearn it the hard way.

The 98040 ZIP's population of 25,282 has faced economic pressure over the last decade. That pressure shows up in rent delinquency patterns that clocks in at the need for careful underwriting.

The 98040 ZIP fits a narrow investor profile — hands-on, patient, and willing to accept that the cap rate on paper is not the cap rate in reality.

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 Mercer Island:

C Below Average
Buy Confidence Score: 56/100
Affordability
0/25
Appreciation
18/25
Stability
13/20
Timing
10/15
Rental backup
15/15
Affordability
Expensive
Homes cost 12× the median income
Value Trend
Stable (+1.8%)
How home values changed in the past year
Rental Backup
Strong
Could rent for $2,746/mo if you need to move
Market Conditions
COOL
More inventory, negotiating room for buyers
Bottom Line: This market may be challenging for buyers. Consider your timing and budget carefully.
❄️
COOL MARKET
Seattle-Tacoma-Bellevue, WA Metro Area
More inventory, negotiating room for buyers
45 days
Average time to sell
Average
11.2%
Listings with price cuts
Few Cuts
0.0%
Sale price vs asking
Below Ask
0.0%
Income needed for mortgage
Affordable
📅 Market conditions as of August 29, 2026 — updated weekly from Seattle-Tacoma-Bellevue, WA metro data
🏠

Property Strategy for 98040

Which property type performs best in this market?

Best for Cash Flow
1BR
4.4% cap rate
Best for Appreciation
4BR
+7.8% 5yr CAGR
Best Overall Value
2BR
$362,829/bedroom
📊 Compare All Property Types →
Type Median Value Est. Rent Cap Rate 5yr CAGR $/Bedroom
1BR $425,166 $2,590 4.4% 0.0% $425,166
2BR $725,658 $3,020 3.0% +2.0% $362,829
3BR $1,853,996 $3,950 1.5% +7.3% $617,999
4BR $2,394,882 $4,650 1.4% +7.8% $598,721
5BR $2,905,143 +7.6% $581,029

Market Trends

Home Value History (with trend line)

$2.6M$2.2M$1.8M$1.4M$1.0M$651KJul 2006Jul 2016Jul 2026

Rent History (with trend line)

$2,827$2,621$2,414$2,207$2,001$1,794Feb 2018May 2022Jul 2026

📊 How Does 98040 Compare?

Metric 98040 Mercer Island Seattle-Tacoma-Bellevue, WA Washington
Home Value $2,293,587 $2,293,587 N/A $591,536
5-Year CAGR 3.8% 3.8% N/A 5.9%
Avg Rent $2,746 $2,746 N/A -
Cap Rate 0.9% 0.9% - -
A great house in the wrong ZIP is still a bad deal — screen every market by cash flow & cap rate.
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Landlord Ground Truth

Real numbers from people who own or manage rentals in ZIP 98040 (Mercer Island, WA). Anonymous, moderated, never written by AI.

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Property managers serving King County

Manage rentals here? List your business →

Alki Property Management LLC specializes in apartment rentals. summary from their website

Small multifamily
Unclaimed — is this your business? Claim it free

Brink Property Management offers residential property management and vacant home management services in Bellevue, providing marketing, tenant screening, rent collection, and maintenance. summary from their website

Single-familySmall multifamily
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Full Service Property Management offers compassionate property management across Metro Seattle, including multi-family management, property marketing, and maintenance services. summary from their website

Single-familySmall multifamily
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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
Fair
Cap Rate
0.9%
Low
5yr Growth
+3.8%
Moderate

📊 Market Snapshot

Home Value $2,293,587
Monthly Rent $2,746
Price-to-Rent 69.6:1
1% Rule ✗ Fails

💰 Return Metrics

Gross Yield 1.4%
Cap Rate 0.9%
5-Year IRR 4.7%

📈 Home Appreciation

1-Year +1.8% ▲
3-Year CAGR +3.5% ▲
5-Year CAGR +3.8% ▲
10-Year CAGR +6.9% ▲

🏠 Rent Trends

1-Year +3.4% ▲
3-Year CAGR +3.2% ▲
5-Year CAGR +4.1% ▲
Negative Leverage — IRR / Tax Play Cap Rate: 0.9%  |  30yr Rate: 6.8%
Leverage reduces cash returns at current rates.

The current 30-yr mortgage rate (6.8%) exceeds the estimated cap rate (0.9%). 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
7.0%
Low risk
Landlord Climate
1.0/5
Protective
Value Trend (5yr)
+3.8%
Stable
Eviction process: Slow Rent control: Unfavorable

Demographics in 98040

Population: 25,282

💰 Median Household Income
$190,985
This area
$190,985
State
$83,286
USA
$74,580
🏠 Renter Occupied
32.0%
This area
32.0%
State
29.3%
USA
34.0%
💼 Unemployment Rate
1.5%
This area
1.5%
State
-13.7%
USA
3.7%
🎓 College Educated
77.8%
This area
77.8%
State
10.6%
USA
33.7%
👤 Median Age
45.3 years
This area
45.3 years
State
10.2 years
USA
38.9 years
🏚️ Vacancy Rate
7.0%
This area
7.0%
State
14.9%
USA
10.5%
👥 Population by Ethnicity
White 66.3%
Asian 22.2%
Other/Mixed 10.2%
Hispanic/Latino 3.1%
Black/African American 1.3%
👶 Under 18
23.1%
This area
23.1%
USA
22.0%
👴 65 and Over
20.4%
This area
20.4%
USA
17.3%
📊 Poverty Rate
3.2%
This area
3.2%
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 98040

A Avg School Grade
6 Schools
17.7:1 Avg Class Size
$21,149 Avg Per Pupil

Schools in This ZIP Code

A Very Good

Island Park Elementary

📚 K – 05 Elementary
👥
361 Students
👨‍🏫
15.8:1 Class Size
💰
$21,149 Per Student
A Very Good

Northwood Elementary School

📚 Pre-K – 05 Elementary
👥
398 Students
👨‍🏫
15.9:1 Class Size
💰
$21,149 Per Student
A Very Good

West Mercer Elementary

📚 K – 05 Elementary
👥
410 Students
👨‍🏫
16.1:1 Class Size
💰
$21,149 Per Student
A Very Good

Lakeridge Elementary School

📚 K – 05 Elementary
👥
403 Students
👨‍🏫
18.3:1 Class Size
💰
$21,149 Per Student
B+ Above Average

Islander Middle School

📚 06 – 08 Middle
👥
938 Students
👨‍🏫
20.5:1 Class Size
💰
$21,149 Per Student
B+ Above Average

Mercer Island High School

📚 09 – 12 High School
👥
1,465 Students
👨‍🏫
19.6:1 Class Size
💰
$21,149 Per Student

Nearby Schools (5 more)

Schools in adjacent ZIP codes that may serve this area

A+ Excellent

Emerson Elementary School

📚 Pre-K – 05 Elementary
📍 9709 60 AV S, SEATTLE
👥
323 Students
👨‍🏫
11.2:1 Class Size
💰
$25,927 Per Student
A+ Excellent

Dunlap Elementary School

📚 Pre-K – 05 Elementary
📍 4525 S CLOVERDALE ST, SEATTLE
👥
248 Students
👨‍🏫
9.7:1 Class Size
💰
$25,927 Per Student
A+ Excellent

Graham Hill Elementary School

📚 Pre-K – 05 Elementary
📍 5149 S GRAHAM ST, SEATTLE
👥
242 Students
👨‍🏫
11.5:1 Class Size
💰
$25,927 Per Student
A+ Excellent

Hawthorne Elementary School

📚 Pre-K – 05 Elementary
📍 4100 39 AV S, SEATTLE
👥
374 Students
👨‍🏫
14.5:1 Class Size
💰
$25,927 Per Student
A+ Excellent

South Shore PK-8 School

📚 Pre-K – 08 School
📍 4800 S Henderson St, SEATTLE
👥
570 Students
👨‍🏫
12.6:1 Class Size
💰
$25,927 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 12,138 Off-Campus Students
C+
Bellevue College
11,472 students · 4.0 mi
C
Seattle Institute of East Asian Medicine
43 students · 4.6 mi
C+
Seattle University
7,182 students · 5.0 mi
D
Aveda Arts & Sciences Institute Seattle
157 students · 5.3 mi
C+
Seattle Central College
5,210 students · 5.4 mi
C
South Seattle College
5,295 students · 5.8 mi
C+
Renton Technical College
3,060 students · 5.9 mi
C
Cornish College of the Arts
502 students · 6.0 mi

Investor Insight: With 12,138 students living off-campus nearby, this area has strong rental demand from the college population.

Frequently Asked Questions

What is the average home sale price in Mercer Island, WA?

Typical homes in Mercer Island, WA go for around $2.3M. The 5-year CAGR of 0.0% even-keeled price movement.

Which investment style suits Mercer Island, WA?

A careful cash-flow rentals with hands-on management strategy Mercer Island, WA best. The market produces steady results for that approach at the $2.3M price point.

What kind of tenants rent in Mercer Island, WA?

Mercer Island, WA offers a stable renter base at the $2,746/mo rent level. Tenant turnover is reasonable for well-managed properties.

How strict are landlord regulations in Mercer Island, WA?

Mercer Island, WA operates under WA law, which is tenant-protective overall for landlords. Expect predictable treatment in typical lease and eviction cases.

How strong are rents in Mercer Island, WA?

The typical rental in Mercer Island, WA commands about $2,746/mo monthly. That rent profile reliable cash flow against the $2.3M purchase basis.

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How 98040 ranks in Seattle-Tacoma-Bellevue, WA

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