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Mountainside, New Jersey eviction risk overview
City brief · 7,049 residents

Mountainside, NJ Eviction Risk: ELEVATED

Union County · Population 7,049

In 2026
Risk score
6.2
ELEVATED

16th percentile, New Jersey.

50-yr Eviction Risk Score history

1976 to 2026 · climbing fast since 2010

Min1.7 Average3.8 Now6.2
10 5 1976 · score 1.9 1977 · score 2.0 1978 · score 2.1 1979 · score 2.2 1980 · score 1.9 1981 · score 2.0 1982 · score 2.0 1983 · score 2.0 1984 · score 1.7 1985 · score 1.8 1986 · score 1.8 1987 · score 1.8 1988 · score 2.1 1989 · score 2.1 1990 · score 2.3 1991 · score 2.3 1992 · score 2.9 1993 · score 2.9 1994 · score 2.9 1995 · score 2.9 1996 · score 3.5 1997 · score 3.6 1998 · score 3.6 1999 · score 3.7 2000 · score 3.5 2001 · score 3.6 2002 · score 3.7 2003 · score 3.7 2004 · score 3.6 2005 · score 3.6 2006 · score 3.7 2007 · score 3.8 2008 · score 4.3 2009 · score 4.4 2010 · score 4.5 2011 · score 4.7 2012 · score 4.8 2013 · score 4.9 2014 · score 5.0 2015 · score 5.1 2016 · score 5.2 2017 · score 5.4 2018 · score 5.6 2019 · score 5.9 2020 · score 6.6 2021 · score 6.6 2022 · score 6.6 2023 · score 6.6 2024 · score 6.3 2025 · score 6.9 2026 · score 6.2

Key metrics

Time machine

Scrub 50 years

2026
● LIVE · today ◀ REPLAY · historical

Nine-axis profile

9-axis profile · today

Shape of the risk surface

1 landlord · 10 tenant
Local 7.1 Regional 7.1 State 6.8 Economic 3.2 Supply 6.7 Rent Control 9.6 Eviction 6.3 Tenant 3.4 Housing 5.9 6.2 ELEVATED
Sub-scores · with sparkline

Where the score comes from

1 → 10 scale
  1. Local political climate
    Dem margin +24.2% (2024)
    7.1
  2. Regional political climate
    County-weighted neighbor mix
    7.1
  3. State political climate
    New Jersey legislature & governorship
    6.8
  4. Economic stress
    2.9% poverty · 2.1% unemp.
    3.2
  5. Supply constraint
    $3,501 average · 12.1% renters
    6.7
  6. Rent Control risk
    51.0% of income on rent
    9.6
  7. Eviction process difficulty
    164 days filing → judgment
    6.3
  8. Tenant organizing strength
    12.1% renters
    3.4
  9. Housing court bias
    County bench composition
    5.9
Geographic context

Risk heat across Mountainside and the region

Click any city to see its score

How Mountainside compares

Risk score vs. peers, county, state, and the U.S.
Rank in Union County
Very Low
#17 of 19 cities
Rank in county, 11th percentileBottomTop
#17 of 19 cities in Union County for landlord eviction risk.
Rank in New Jersey
Very Low
#592 of 696 cities
Rank in state, 15th percentileBottomTop
#592 of 696 cities in New Jersey for landlord eviction risk.
vs. county · state · U.S.
Mountainside risk score vs. county / state / U.S.Mountainside: 6.26.2MountainsideThis cityCounty: 8.08.0Countyavg in countyState: 7.77.7Stateavg in stateU.S.: 5.25.2U.S.national avg
Score story

Six-stop tour of the risk profile

  1. 6.2
    / 10 · ELEVATED
    The verdict

    A Elevated-tier market.

    Composite 6.2/10. Mid-range market; standard documentation usually wins. The 50-year curve shows a sharp climb.

    50-yr trend+4.3 over 50 yr
    197620012026

    Steepening since 2010 · COVID inflection visible

  2. 164d
    Typical timeline
    The money

    What renting (and evicting) looks like.

    Rent published at $3,501/mo. A contested eviction takes 164 days and costs $9,711-$22,788 per case.

    50-yr trendCalendar drag rising since '15
    197620012026

    Court-clerk data lands in the next release.

  3. 12.1%
    Renters
    The renters

    Who you'll be renting to.

    Out of 7,049 residents, 12.1% rent. 51% are spending 30%+ income on rent, 2.9% below the poverty line.

    50-yr trendRenter share rising
    197620012026

    ACS 1970-present · once the migration overlay is in.

  4. 7.1
    Local + regional
    The politics

    Mid-range climate. Not a coastal market.

    Local & regional political climate score 7.1 and 7.1 (Dem margin +24.2% (2024)). State climate at 6.8, a mid-range statehouse.

    50-yr trendTracks county vote margin
    197620012026

    Built on 50-yr presidential margins back to 1976.

  5. 6.8
    State politics
    The process

    Moderate calendar, moderate friction.

    State political climate 6.8/10 sets the legislative ceiling for landlord remedies, and it shows up in the process. Eviction process difficulty reads 6.3, housing court bias 5.9, rent-control risk 9.6. Standard process speed for the state.

    50-yr trendProcess difficulty +1.3 since '00
    197620012026

    Court-clerk data lands in the next release.

  6. 3.2
    Economic stress
    The stress

    Economic pressure is the background risk.

    Economic stress: 3.2. Supply constraint: 6.7. The numbers behind those: 2.9% poverty, 2.1% unemployment, 51% of income on rent.

    50-yr trendTwo visible dips · '08 + COVID
    197620012026

    Mirrors BLS unemployment series.

US eviction landscape · timeline × all-in cost

Mountainside sits in the slow & expensive quadrant

Bubble size = population · color = risk score
QUICK BUT COSTLY fast docket · high all-in loss SLOW & EXPENSIVE long calendar · high all-in loss QUICK & CHEAP fast docket · low all-in loss SLOW BUT CHEAP long calendar · low all-in loss 30d 50d 75d 100d 150d 200d 300d 450d $2.0k $3.0k $5.0k $7.5k $10k $15k $20k $30k EVICTION TIMELINE (DAYS) → ↑ ALL-IN COST (LOG SCALE) Newark, NJ · 165d · ~$16.3k all-in ($99/day) · score 9 Newark Jersey City, NJ · 163d · ~$18.6k all-in ($114/day) · score 9.3 Jersey City Paterson, NJ · 185d · ~$17.8k all-in ($96/day) · score 8.6 Paterson Elizabeth, NJ · 165d · ~$16.5k all-in ($100/day) · score 8.4 Elizabeth Toms River, NJ · 166d · ~$16.0k all-in ($96/day) · score 7.2 Toms River Trenton, NJ · 179d · ~$18.6k all-in ($104/day) · score 8.6 Trenton Clifton, NJ · 170d · ~$19.3k all-in ($114/day) · score 8 Clifton Bayonne, NJ · 180d · ~$17.2k all-in ($95/day) · score 8.3 Bayonne East Orange, NJ · 195d · ~$15.6k all-in ($80/day) · score 9.2 East Orange Passaic, NJ · 177d · ~$17.7k all-in ($100/day) · score 8.6 Passaic Houston, TX · 24d · ~$2.5k all-in ($103/day) · score 2.7 Houston Phoenix, AZ · 38d · ~$3.3k all-in ($86/day) · score 3.9 Phoenix Memphis, TN · 31d · ~$2.0k all-in ($66/day) · score 4.6 Memphis Atlanta, GA · 40d · ~$2.8k all-in ($69/day) · score 5.5 Atlanta Boston, MA · 187d · ~$20.3k all-in ($109/day) · score 6.8 Boston Chicago, IL · 109d · ~$9.0k all-in ($82/day) · score 6.3 Chicago New York, NY · 417d · ~$29.5k all-in ($71/day) · score 9.8 New York Seattle, WA · 162d · ~$12.7k all-in ($79/day) · score 6.2 Seattle Mountainside
Mountainside · 164d · ~$16.2k all-in ($99/day) · score 6.2 National average: 58d · $4.6k all-in Hover any bubble for stats · click to open Color: 0-4   4-7   7-10
00Overview

About eviction risk in Mountainside, NJ

Landlording in Mountainside, New Jersey, presents an elevated-friction market where documented notices and proactive screening matter. The Eviction Risk Score is 6.2/10 (ELEVATED tier), drawn from the nine sub-axes shown above, covering rent-control exposure, eviction-process difficulty, housing-court bias, tenant-organizing strength, supply constraint, economic stress, and local, regional, and state political climate. This is not a quick-fix market: it's a Elevated-friction market where lease drafting, screening discipline, and well-documented notices materially change outcomes.

Mountainside is a city of 7,049 residents where 12.1% of occupied units are renter-occupied, and the typical renter spends 51.0% of income on rent. At an average rent of $3,501/month, the typical renter household here spends more than the federal 30% threshold on housing, a leading indicator of payment volatility and a precondition for the kinds of tenant defenses that show up most often in housing court.

01Process

How Mountainside eviction process actually works

Eviction process difficulty here reads 6.3/10, a number that combines statutory complexity (notice categories, just-cause rules, mandatory pre-filing disclosures) with operational realities (court calendar length and clerk responsiveness). The typical contested filing in Mountainside closes 164 days after the initial notice. For non-payment of rent the first step is a properly-formatted, properly-served pay-or-quit notice; for material lease breaches it's a cure-or-quit; for tenancies under just-cause protection an at-fault grounds notice (or a no-fault notice with statutory relocation assistance) is required.

The slow part of Mountainside's timeline is usually the calendar, not the motion practice. Housing court bias scores 5.9/10 here, meaning judges read borderline procedural defects in the tenant's favor more often than the national norm. The practical implication: every notice and every proof of service needs to be airtight before it gets filed.

02Cost

What it costs (and how long it takes)

An all-in eviction in Mountainside runs $9,711 to $22,788 per case once you account for filing fees, attorney time, lost rent during pendency, sheriff lockout, and unit turnover. That range is wide because the upper bound assumes a tenant answer plus motion practice, common when housing court bias is high. The lower bound assumes a default judgment after proper service.

For landlords running the numbers on holding costs vs. cash-for-keys: if your projected timeline times your monthly rent already exceeds the high-end cost number, cash-for-keys at 1-2 months' rent is typically the economically rational choice. With 164 days of typical timeline and $3,501/month in lost rent, that crossover happens fast here.

03Operations

Security deposits, screening, and lease terms

Tenant organizing strength scores 3.4/10 in Mountainside, and the city sits at the top of the rent control risk spectrum (9.6/10). Operations practice that survives audit in this environment looks like:

  • Screening discipline. Document income (verified at 2.5 to 3x rent), credit (with a clear minimum), and prior-tenancy reference checks, but do not screen on protected categories or source-of-income where banned. Keep a written, consistent screening criteria document for every applicant.
  • Lease specificity. Use a state-specific lease that names every term clearly: rent due date, late fees within statutory caps, deposit handling, smoke and CO disclosure, lead paint disclosure (pre-1978 stock), and a clean attorney's-fees clause.
  • Security deposit handling. Itemize deductions within the statutory window. Photograph move-in/move-out condition. In New Jersey, deposit cap and refund window are statute, so exceed them at your own risk.
  • Mid-tenancy documentation. Keep date-stamped records of every rent receipt, every habitability request, every notice served. The day you need them in court is too late to start.
04Strategy

What an everyday landlord should actually do here

If you own one to four units in Mountainside: hire a property manager who knows the local court. The pricing differential between self-managing and hiring out is small relative to the cost of one botched eviction in a ELEVATED tier market. If you own five or more: build relationships with a local landlord-side attorney before you need one, since retainer fees are negligible compared to emergency-rate billing when an eviction is already moving.

The avoidable mistakes here are all upstream of the filing: weak screening, an informal lease, sloppy rent receipts, and notice templates pulled off the internet that don't match New Jersey's statutory language. Fix those four, and most cases settle or default. Skip them, and a $22,788 all-in fight is the realistic worst case.

04bPractical traps

Local traps to avoid in Mountainside

Trap · 5.9/10
For landlords, the 6.9/10 score is most actionable when combined with Union County's specific court behavior. Housing-court bias sub-score: 5.9/10. Use proactive screening and documented notices.
05FAQ

Frequently asked questions

Q1

Can I evict a tenant in Mountainside if I want to move into my property?

Yes, under New Jersey's Anti-Eviction Act, owner-occupancy is one of the "just causes" for eviction. However, there are strict rules. You must give proper notice (often 60 days) and genuinely intend to occupy the unit yourself or for an immediate family member. You can't just say you're moving in and then re-rent it a month later.
Q2

What if my tenant refuses to leave after the court grants an eviction?

Once the court issues a Warrant of Removal, the sheriff's office will schedule the physical lockout. You cannot remove the tenant or their belongings yourself. Only the sheriff can enforce the eviction order. This is part of why the process takes so long.
Q3

Do I need an attorney for an eviction in Mountainside?

While you can represent yourself, it's highly recommended to hire an attorney in New Jersey. The laws are complex, and procedural errors are common. Given the high costs and long timelines, a mistake can be extremely expensive. An attorney will ensure all notices are correct and court procedures are followed.
Q4

How often can I raise the rent in Mountainside?

Mountainside itself does not have rent control, so there's no specific cap on how much you can raise the rent. However, you must provide proper written notice, usually 30 days, before the rent increase takes effect. New Jersey's "just cause" eviction protections mean you can't use an exorbitant rent increase as a de facto eviction.
Q5

Can I charge late fees for rent in Mountainside?

Yes, you can charge reasonable late fees if they are clearly stated in your lease agreement. New Jersey law typically considers a late fee of 5% of the monthly rent to be reasonable. You cannot charge a late fee until rent is at least five days late.
06Score

What this score means for landlords2

A 6.2/10 places Mountainside in the 16th percentile of New Jersey cities on the Eviction Risk Score index. The score is the average of the nine sub-axes, all calibrated on a national 1 to 10 scale where 1 is most landlord-friendly and 10 is most tenant-protective. The 50-year reconstruction shows this score has risen sharply since 1976, a structural drift driven by court-calendar growth, rent-control adoption, and the rise of tenant-side legal aid. The trajectory matters more than the snapshot: the score is the climate, not the weather.