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New Jersey, county by county

How New Jersey Is Aging

In 8 of New Jersey's 21 counties, residents 65 and older now make up as large a share of the population as children under 18 — or a larger one. Statewide, the number of New Jerseyans 65 and over grew 43% between 2010 and 2024. Here is where each county stands, from published U.S. Census data.

33.1%

of Cape May County residents are 65 or older — the highest share in the state

18%

of all New Jerseyans were 65 or older in 2024, up from 13.5% in 2010

8

counties where the 65-plus share meets or tops the under-18 share

Where seniors are as numerous as children

These counties have a 65-and-over share that meets or exceeds their under-18 share (both measured as a percent of total population in the same Census estimate): Atlantic, Burlington, Cape May, Hunterdon, Monmouth, Morris, Sussex, Warren.

Share of residents 65 and over, share under 18, and total population for each of New Jersey's 21 counties, sorted from the highest 65-plus share to the lowest.
County 65 and over Under 18 Total population (2025)
Cape May 33.1% 15.7% 93,390
Ocean 24% 24.6% 673,746
Hunterdon 23.4% 18.3% 131,781
Atlantic 22.3% 19.5% 278,657
Warren 21.6% 19% 112,953
Monmouth 21.4% 19.8% 651,035
Sussex 21.1% 19.1% 148,063
Salem 20.5% 21.6% 66,280
Burlington 20% 19.9% 481,439
Morris 20% 19.9% 524,251
Bergen 19.8% 20% 977,026
Gloucester 19% 20.4% 312,638
Somerset 18.9% 20% 356,486
Camden 18.2% 21.7% 535,799
Middlesex 17.4% 20.2% 883,335
Cumberland 17% 23.1% 157,148
Mercer 17% 21.1% 399,289
Passaic 16.6% 22.8% 531,624
Union 15.6% 23% 601,863
Essex 14.5% 22.3% 896,379
Hudson 12.7% 18.2% 735,033

Find your county's Office on Aging

Every New Jersey county runs an Office on Aging (some are named a Division of Senior Services or an Area Agency on Aging). It is the first place to call for help a family cannot arrange alone — case management, home-delivered meals, transportation , caregiver support, and screening for benefits like senior property tax relief . For the care itself, once a family has decided they need paid help at home, see home health aide and home care services in New Jersey . Not sure which office you need? The statewide New Jersey Division of Aging Services routes you to the right county through its Aging and Disability Resource Connection line, 1-877-222-3737 .

Each New Jersey county's Office on Aging, with its official name, main public phone number, and a link to its official website.
County Office on Aging Phone Website
Atlantic Atlantic County Division of Intergenerational Services 1-888-426-9243 Official page
Bergen Bergen County Division of Senior Services 201-336-7400 Official page
Burlington Burlington County Office on Aging (Aging and Disability Resource Center) 609-265-5069 Official page
Camden Camden County Division of Senior and Disabled Services 856-858-3220 Official page
Cape May Cape May County Division of Aging and Disability Services 609-886-2784 Official page
Cumberland Cumberland County Office on Aging and Disability Services 856-453-2220 Official page
Essex Essex County Division of Senior Services (ADRC) 973-395-8365 Official page
Gloucester Gloucester County Division of Senior Services 856-384-6900 Official page
Hudson Hudson County Division on Aging 201-369-4313 Official page
Hunterdon Hunterdon County Division of Senior, Disabilities and Veterans' Services 908-788-1361 Official page
Mercer Mercer County Office on Aging / Aging & Disability Resource Connection 609-989-6661 Official page
Middlesex Middlesex County Office of Aging and Disabled Services 732-745-3295 Official page
Monmouth Monmouth County Division on Aging, Disabilities and Veterans Services 732-431-7450 Official page
Morris Morris County Division on Aging, Disabilities and Community Programming 973-285-6848 Official page
Ocean Ocean County Office of Senior Services 732-929-2091 Official page
Passaic Passaic County Department of Senior Services, Disability and Veterans Affairs 973-569-4060 Official page
Salem Salem County Office on Aging and Disabilities 856-339-8622 Official page
Somerset Somerset County Office on Aging and Disability Services 908-704-6346 Official page
Sussex Sussex County Division of Senior Services 973-579-0555 Official page
Union Union County Division on Aging 908-527-4870 Official page
Warren Warren County Division of Aging and Disability Services 908-475-6591 Official page

Methodology and sources

Every figure on this page is a published U.S. Census value, copied verbatim from the source noted below. The “65 and over” and “under 18” columns are percent-of-total-population estimates from the same American Community Survey table, so they can be compared directly. We do not publish a derived count of seniors per county, because the age shares and the total-population figures come from two different Census series and multiplying them would present an estimate as if it were a measured count. Statewide growth figures are from the New Jersey Department of Health. Each county Office-on-Aging name, phone, and link was read on that county's own official website on the date noted below. This is public data assembled for families; it is not our own research and not a medical or financial claim.