How New Jersey Compares

New Jersey

40.1 years

National

38.9 years

3.1% above

State Ranking

Rank	State	Value
#14	Michigan	40.2 years
#15	South Carolina	40.2 years
#16	Wisconsin	40.2 years
#17	New Jersey	40.1 years
#18	Massachusetts	40.0 years
#19	New York	39.8 years
#20	Ohio	39.7 years

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Highest Age Counties in New Jersey

#	County	Age
1	Cape May County	51.8 years
2	Hunterdon County	46.1 years
3	Warren County	44.0 years
4	Sussex County	43.8 years
5	Monmouth County	43.2 years
6	Morris County	42.6 years
7	Atlantic County	42.3 years
8	Bergen County	42.0 years
9	Salem County	41.9 years
10	Somerset County	41.8 years

Lowest Age Counties in New Jersey

#	County	Age
21	Hudson County	35.8 years
20	Essex County	37.7 years
19	Cumberland County	37.7 years
18	Passaic County	38.1 years
17	Camden County	38.8 years
16	Union County	39.1 years
15	Middlesex County	39.5 years
14	Mercer County	39.5 years
13	Gloucester County	40.1 years
12	Ocean County	41.2 years

Median Age in New Jersey

New Jersey has a median age of 40.1 years, ranking #17 of 52 among all 52 states and territories. This is 3.1% above the national value of 38.9 years.

Across New Jersey's 21 counties, median age ranges from 35.8 years to 51.8 years. The county with the highest value is Cape May County at 51.8 years.

The median age of the total population.

About this data

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.