Real Estate Investing in Mercer County, New Jersey

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

19 ZIP codes • Population: 387,911

Should you buy in Mercer County, NJ? Our answer, based on the numbers below.

🏠 For Homebuyers
MIXED
Grade C (68/100)

Mixed signals β€” some positives, some negatives. Worth considering but not a slam-dunk.

πŸ“ˆ For Investors
MIXED
3.1 / 5 (53/100)

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

⚠️ Risks to Know
1 flag
  • Tenant-protective state: Landlord rating 1.0/5 β€” slower evictions, more regulations.

What’s happening in Mercer County, NJ?

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3.1/ 5

Investability

County-wide average

4.0/ 5

Appreciation

7.2% 5yr CAGR

1.0/ 5

Landlord Climate

Regulatory friendliness

Avg Investability β˜…β˜…β˜…β˜…β˜…
Avg Home Value $528,659
Avg Monthly Rent $2,411
ZIP Codes 19

Investing in Mercer County Real Estate

With 387,911 residents across 9 cities, Mercer County shows modest fundamentals that keep most passive capital on the sidelines β€” a region that demands real local knowledge.

Investors considering Mercer, New Jersey should understand what the β˜…β˜…β˜…β˜†β˜† rating represents β€” a region with material challenges, not a temporary rough patch.

The 0% renter share in Mercer masks uneven tenant quality across ZIPs, and $N/AK median income leaves little cushion against economic shocks.

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 Mercer County, NJ. Anonymous, moderated, never written by AI.

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Avg Home Value
$528,659
Avg Monthly Rent
$2,411
1% Rule
βœ— Below
Landlord Friendly (NJ)
β˜…β˜†β˜†β˜†β˜†

πŸŽ“ Colleges & Universities in Mercer County

7 Colleges 24,669 Students 122 Off-Campus Renters
A
Princeton University
4-Year Private Β· 8,922 students
B+
The College of New Jersey
4-Year Public Β· 7,652 students
πŸ“ ~122 students rent off-campus
C
Thomas Edison State University
4-Year Public Β· 7,587 students
C
Innovate Salon Academy
Vocational For-Profit Β· 153 students
C
Princeton Theological Seminary
4-Year Private Β· 287 students
C
Capital Health School of Radiologic Technology
2-Year Private Β· 15 students
C
Capital Health School of Nursing
2-Year Private Β· 53 students

Cities in Mercer County

ZIP Codes in Mercer County, NJ

08540 β˜… β˜… β˜… β˜… β˜…
Princeton
Population 49,499
Avg Home $987,711
Avg Rent $3,502/mo
08618 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 37,162
Avg Home $272,668
Avg Rent $2,019/mo
08610 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 33,387
Avg Home $360,429
Avg Rent $1,917/mo
08611 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 32,786
Avg Home $194,537
Avg Rent $1,938/mo
08648 β˜… β˜… β˜… β˜… β˜…
Lawrence Township
Population 31,142
Avg Home $475,108
Avg Rent $2,655/mo
08520 β˜… β˜… β˜… β˜… β˜…
Hightstown
Population 29,321
Avg Home $475,214
Avg Rent $2,546/mo
08619 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 23,512
Avg Home $440,485
Avg Rent $2,331/mo
08638 β˜… β˜… β˜… β˜… β˜…
Ewing
Population 23,373
Avg Home $317,404
Avg Rent $1,914/mo
08550 β˜… β˜… β˜… β˜… β˜…
Princeton Junction
Population 20,876
Avg Home $1,029,615
Avg Rent $3,898/mo
08690 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 18,996
Avg Home $493,633
Avg Rent $2,118/mo
08691 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 16,924
Avg Home $649,449
Avg Rent $2,519/mo
08534 β˜… β˜… β˜… β˜… β˜…
Pennington
Population 13,174
Avg Home $689,490
Avg Rent $3,055/mo
08629 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 13,015
Avg Home $260,617
Avg Rent $1,900/mo
08609 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 13,000
Avg Home $207,543
Avg Rent $1,855/mo
08620 β˜… β˜… β˜… β˜… β˜…
Trenton
Population 11,949
Avg Home $472,867
Avg Rent $1,566/mo
08628 β˜… β˜… β˜… β˜… β˜…
Ewing
Population 9,479
Avg Home $438,991
Avg Rent $2,107/mo
08525 β˜… β˜… β˜… β˜… β˜…
Hopewell
Population 4,567
Avg Home $679,886
Avg Rent $2,061/mo
08560 β˜… β˜… β˜… β˜… β˜…
Titusville
Population 3,334
Avg Home $679,596
Avg Rent $2,637/mo
08542 β˜… β˜… β˜… β˜… β˜…
Princeton
Population 2,415
Avg Home $919,277
Avg Rent $3,267/mo

Screen every market in Mercer County

Filter this county’s ZIPs by cap rate, vacancy, appreciation and 30+ more criteria, and export your shortlist to CSV — with the Investor plan ($19/mo). Add weekly alerts when these markets move with Investor Pro+.

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Frequently Asked Questions About Mercer County

Are landlord laws favorable in, NJ?

NJ law tenant-protective for landlords, and inherits those rules. Investors should still review local ordinances for rental licensing.

How strong is tenant demand in, NJ?

Tenant demand in, NJ is solid. The local workforce $2,411/mo rents across most rental classes.

Is housing expensive in, NJ?

Homes in, NJ typically sell near $529K. Prices have moved at a 0.0% 5-year CAGR, which even-keeled long-term demand.

What are vacancy rates like in, NJ?

Rental vacancy in, NJ is elevated. Investors should budget normal turnover but not chronic empty units.

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