Landlord Insurance in All 21 NJ Counties.

What changes landlord insurance cost between NJ counties

Friedlander Associates writes landlord property, liability and loss of rents across all 21 New Jersey counties: single-family rentals, two-to-four unit buildings, larger habitational schedules, mixed-use, and seasonal units. One intake covers a whole portfolio, whatever counties the addresses sit in. What differs county to county is not whether the risk can be written — it is which exposures drive the underwriting once it is.

Age of the rental stock

The first variable is how old the housing is, because age drives ordinance-or-law exposure and rebuild cost. On ACS 2023 five-year data, 51.2% of Bergen County's 368,535 housing units were built in 1959 or earlier, and 37.4% of Warren County's 46,675 were; Ocean County sits at the other end of the range at 16.1%. On the same ACS 2023 five-year data, 22.6% of Warren County's units predate 1940 — the highest pre-1940 share among the ten counties where most of our landlord accounts sit — against 17.3% in Hunterdon County and 12.0% in Morris County.

Who rents, and in what kind of building

The second variable is tenure and building size. On ACS 2023 five-year data, renters occupy 36.5% of occupied units in Middlesex County and 34.6% in Bergen County, against 15.2% in Hunterdon County and 15.1% in Sussex County. Middlesex also has 23.7% of its units in buildings of five or more, and Bergen 22.2% — habitational-schedule territory — while Hunterdon has 7.8% and Sussex 8.2%. Morris County sits between the two patterns, at 26.1% renter-occupied with 19.4% of units in buildings of five or more.

North Jersey: rent regulation is the live variable

Municipal rent regulation is the third variable and the most genuinely local one. The NJ DCA 2026 Rent Control Survey lists 26 of Bergen County's 70 municipalities with a rent-control ordinance, and 12 of Middlesex County's 25 — and the thresholds inside those ordinances differ. In Middlesex, that survey records New Brunswick applying at one unit and up, Edison at three and up, and Woodbridge at five and up, so two buildings a few miles apart can fall on opposite sides of a rent board. The same survey lists no rent-controlled municipality at all in Hunterdon County, two of 21 in Somerset County (Franklin Township and North Plainfield Borough), two of 39 in Morris County (Morristown and Randolph Township), and two of 22 in Warren County (Lopatcong Township and Phillipsburg Town).

The northwest: seasonal stock inland

Sussex County reads differently again. On ACS 2023 five-year data, 4.5% of its 62,825 housing units are held for seasonal or occasional use — 2,855 units, the highest share of any of the ten counties outside the shore. The two Sussex municipalities the NJ DCA 2026 Rent Control Survey lists, Franklin Borough and Hampton Township, both regulate mobile homes only. Lake and second-home rentals raise off-season vacancy and unoccupancy questions long before they raise rent-board ones.

The shore: flood first, rent control second

On the shore, flood comes first. Ocean County's 2025 Multi-Jurisdictional All-Hazard Mitigation Plan, FEMA-approved on 19 May 2025, records 100% of developed land inside the 1% annual chance floodplain in all six Long Beach Island municipalities, and 99.9% in Seaside Heights and Lavallette. Ocean is also the seasonal-rental county: on ACS 2023 five-year data, 41,040 of its 295,201 housing units — 13.9% — are seasonal or occasional-use, which makes loss of rents a season-shaped question rather than a year-round one. In Monmouth County the equivalent figure is 3.7%, or 10,096 units, and FEMA's countywide coastal flood study, preliminary DFIRM dated 31 January 2014, covers 41 of the county's 53 communities. The NJ DCA 2026 Rent Control Survey lists 10 of those 53 Monmouth municipalities with an ordinance, against five of Ocean County's 33 — three of the five covering mobile homes only, with Lakewood Township applying at four units and up and Jackson Township at 21 units and up for apartments.

South Jersey: ordinary habitational work

Burlington County is the quietest of the ten on rent regulation and the busiest on ordinary habitational work. On ACS 2023 five-year data it is 24.3% renter-occupied, with 14.3% of its 185,617 units in buildings of five or more and 24.6% built in 1959 or earlier. The NJ DCA 2026 Rent Control Survey lists exactly one of its 40 municipalities — Shamong Township, mobile homes only.

The ten counties we write most

Each county page carries its own rent-control list, flood notes and housing figures: landlord insurance in Hunterdon County, landlord insurance in Somerset County and landlord insurance in Morris County through the middle of the state; landlord insurance in Warren County and landlord insurance in Sussex County in the northwest; landlord insurance in Bergen County and landlord insurance in Middlesex County where the multifamily stock and the rent-control ordinances concentrate; landlord insurance in Monmouth County and landlord insurance in Ocean County on the shore; and landlord insurance in Burlington County to the south. We write the other 11 counties too — the difference is depth of local detail, not appetite.

Who you are dealing with

NJ Landlord Center is a Friedlander Associates agency, working from Flemington in Hunterdon County and licensed in all 21 New Jersey counties. Friedlander Associates Inc. · 361 Route 31 S, Bldg E, Suite 1301-1302, Flemington, NJ 08822 · NJ Insurance Producer License 9725274 · NPN 5735331. Call 908-824-0948.