Places New Jersey NE NJ New Jersey Demographics

New Jersey is the 11th most populated state with 8.8 million people in 2010 and a growth rate of 0.6% per year (28th). See New Jersey QuickFacts from the US Census Bureau
New Jersey is the most densely populated state with 1,189 inhabitants per square mile.
NJ ranks 15th in oldest population with an average age of 37.8.

Ethnic diversity:
New Jersey is one of the most ethnically and religiously diverse states in the country - Wikipedia
The largest ethnic groups are: Hispanic (18%), Italian (17.9%), Irish (15.9%), African (13.6%), German (12.6%), Asian (8.2%) and Polish (6.9%).

17.9% Italian *
17.7% Hispanic
   4.9%  Puerto Rican
   2.5%  Mexican
   1.4%  Central American
   0.9%  Cuban *
   7.9%  Other
15.9% Irish
13.6% African
12.6% German
 8.3% Asian *
   Asian Indian     3.3%
   Mainland Chinese 1.4%
   Filipino         1.3%
   Korean           1.1%
   Vietamese        0.2%
   Pakistani        0.2%
   Taiwanese        0.1% †
   Japanese         0.1%
   Thai             0.03%
   Other            0.5%
   Census Profile: New Jersey's Asian American Population
 6.9% Polish 
 5.5% Jewish *
 2.5% Muslim
Note: There is some overlap, about 1/4 of Muslims are Asian.

* NJ is in the top 3 states for Italian (17.9%), Asian (8.2%) (40% of Asians in NJ are Indian), Jewish (5.5%), Muslim (2.5%) and Cuban (0.9%) populations by percent. (NJ Senator Bob Menendez is Cuban)

† According to the Migration Policy Institute there were 17,206 Taiwanese born living in NJ in 2010 (which would be 0.2%), but 2000 data only showed 5,879 and the asian population in general increased 51% from 2000 to 2010.
The 17,206 above claims to be only those born in Taiwan, if you include 2nd, 3rd, ... generation it would be even higher. I couldn't find good data.

Religious %: Catholic (37%), None (15%), Baptist (8%), Methodist (6%), Presbyterian (4%), Lutheran (3%), Jewish (2%), Episcopalian (2%), Jehovah's Witness (1%), Mormon/LDS (1%), Muslim/Islamic (1%)
See Wikipedia
N.J. Population Shifts in Ethnic Makeup and Location - Feb., 2011 Feb., 2011

New Jersey has the second highest median household income in the country, behind Maryland.
New Jersey's income inequality index (Gini) was below the national index (good).
See Household Income for States: 2008 and 2009 at
NJ has three of the top 10 richest counties in the country | wikipedia and nine in the top 100.
Somerset county ranked #1 in median household income out of more than 3,000 counties in the United States in 2000 according to a Census Bureau report.
In 2010 Hunterdon Co. was #4, Morris Co. was #8 and Somerset Co. was #9 nationally.
Median Household Income: New Jersey Counties (pdf)| NJ Department of Labor
Places with the highest average household income:
Av Household
Home ValuePlaceCounty
1$185,466$690,800Short HillsEssex
2$153,000Montgomery Twp. *Somerset
3$149,386$586,300Essex FellsEssex
4$141,757$488,900Mountain LakesMorris
5$132,919$635,300Far HillsSomerset
6$132,373$609,400Franklin LakesBergen
7$130,848Millburn *Essex
8$129,900$456,600Ho Ho KusBergen
9$129,375$351,000West WindsorMercer
10$129,163$679,300Saddle RiverBergen
13$123,000Woodcliff Lake *Bergen
14$117,395North Caldwell *Essex
16$105,991Kinnelon *Morris
17$105,471$370,100Basking RidgeSomerset
20$104,192$316,900Glen RockBergen
21$104,106$260,900Glen RidgeEssex
22$104,078$430,900 GladstoneSomerset
Source:, 2012
* Source Wikipedia
Numbers vary significantly between sources and most don't list their source.
e.g. Mountain Lakes is $182K at Business Journal $141K at and Wikipedia.
Rumson in Monmouth is shown as $99K in, $120K in Wikipedia and $134K at
See also:
Other lists use median income rather than average.

The unemployment rate in NJ is pretty close to the national average.
The more well-to-do counties, Hunderdon, Somerset, Morris, have lower rates 7.0-7.5%, while the poorer counties in the south, Cumberland, Cape May, Atlantic have higher rates 12-13%.
ERS/USDA Data - NJ Unemployment and Median Household Income

NJ tends to vote democratic in presidential elections by a 7-15% margin. Since 1960 NJ has had 7 democratic governors and 5 republicans.

New_Jersey page
Demographic Maps
US Ethnicity
NJ tends to vote democratic in presidential elections by a 7-15% margin. Since 1960 NJ has had 7 democratic governors and 5 republicans.

New Jersey Demographics - Wikipedia
New York City ethnic enclaves - Wikipedia
Ancestry: 2000 - Ethnic Groups in the United States |
U.S. communities ranked by their median household income - The Business Journals

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last updated 30 May 2012