Patient Advocacy Without the Call Center

New Jersey Medicare, by the Numbers

The data layer behind our New Jersey guide and all 50 city pages, in one place: CMS enrollment, Census demographics, and federal shortage designations, county by county.

Plans we accept in New Jersey covering ~79% of New Jersey's Medicare beneficiaries
  • Original Medicare
  • UnitedHealthcare ~27% of MA members
  • Aetna ~15% of MA members
  • New Jersey Blue Cross Blue Shield ~8% of MA members

Coverage data 2025-2026. Plan networks change - we confirm exactly what your plan covers before any work begins.

1,808,833Medicare beneficiaries statewide (2025)
40.9%chose Medicare Advantage plans
239,389dual-eligible for Medicare and NJ FamilyCare
410,779New Jerseyans 65+ live alone
187 minmedian ER visit statewide (CMS)
45federal primary-care shortage designations

Medicare Enrollment by County

Counties covered by our city pages (21 counties, 1,808,834 beneficiaries). Each county links to its anchor city page.

County Medicare beneficiaries Medicare Advantage share Dual-eligible Residents 65+ Shortage designations
Bergen County 191,121 36% 22,214 170,348 0
Ocean County 167,713 38.2% 12,548 144,719 3
Middlesex County 154,753 40.6% 21,415 135,888 3
Monmouth County 145,454 31% 12,151 119,488 2
Essex County 127,816 49% 26,400 119,383 8
Camden County 105,208 44.9% 17,593 84,971 3
Morris County 104,574 32.7% 8,499 90,759 1
Burlington County 101,540 41.9% 9,090 83,125 4
Union County 95,787 46.2% 14,680 84,844 2
Passaic County 91,912 48% 19,517 80,387 1
Hudson County 87,744 53.8% 25,155 88,417 3
Mercer County 71,839 45.4% 11,087 60,012 2
Atlantic County 65,779 42.9% 8,611 52,889 1
Somerset County 65,062 35.2% 6,308 57,335 1
Gloucester County 63,960 42.7% 6,261 50,111 0
Sussex County 33,972 34.3% 2,437 26,774 0
Hunterdon County 31,566 35% 1,922 26,073 2
Cape May County 31,106 33.5% 2,591 27,232 1
Cumberland County 30,587 52.4% 6,107 23,806 6
Warren County 26,295 37.6% 2,629 20,961 1
Salem County 15,046 41.6% 2,174 12,294 1

Statewide, 40.9% of beneficiaries chose Medicare Advantage in 2025. Counties above that line see more prior authorizations and more denials worth appealing; counties below it lean on Medigap timing, which in New Jersey follows the federal rules for people 65 and older with no birthday rule and no annual reset: the one guaranteed six-month window opens at 65, and New Jersey adds a protection many states lack for younger beneficiaries, requiring at least one carrier to offer a Medigap plan on a guaranteed-issue basis to people under 65 who qualify through disability or ESRD at the same premium a 65-year-old pays, so getting the timing right the first time is what counts. About 9.5% of New Jersey seniors live below the poverty line, the group most likely to qualify for unclaimed help: the state PAAD and Senior Gold drug programs, federal Extra Help, and the Medicare Savings Programs, which the Division of Aging Services runs with an income and asset test. For the full rundown, sources included, see our New Jersey patient advocacy hub.

The Numbers Are the Backdrop. The Help Is the Point.

One dedicated advocate for the bills, appeals, appointments, and paperwork, serving every New Jersey county virtually, usually at $0 with Medicare.

Or start from your city: every New Jersey city we serve.

Sources: CMS Medicare Monthly Enrollment (2025); US Census Bureau ACS 2023 5-year; CMS Care Compare Timely & Effective Care (median ER minutes, period ending 09/30/2025); HRSA Health Professional Shortage Area designation file. Data retrieved 2026-08-14. Understood Care is an independent private advocacy service, not a government agency.