The area was settled in the late 17th century as part of the Elizabethtown Tract. Westfield was originally formed as a township on January 27, 1794, from portions of Elizabeth Township, while the area was still part of Essex County, and was incorporated on February 21, 1798. It became part of the newly-formed Union County on March 19, 1857. The Town of Westfield was incorporated on March 4, 1903, replacing Westfield Township.

Population - Age Range

0-4 years:	1535
5-9 years:	1989
10-14 years:	2226
15-19 years:	3566
20-24 years:	1665
25-29 years:	1446
30-34 years:	917
35-39 years:	1014
40-44 years:	1615
45-49 years:	2392
50-54 years:	2766
55-59 years:	2595
60-64 years:	2135
65-69 years:	1714
70-74 years:	1201
75-79 years:	776
80-84 years:	569
85+ years:	614

Marital Status

Never Married:	5978
Now Married:	16251
Separated:	149
Widowed:	1321
Divorced:	1285

Median Income By Age

Under 25 years:	$8,376
25-44 years:	$180,849
45-64 years:	$169,799
Over 64 years:	$70,396

Household Income by Dollar Range

$0-$10,000	142
$10,000-$15,000	254
$15,000-$20,000	85
$20,000-$25,000	195
$25,000-$30,000	181
$30,000-$35,000	108
$35,000-$40,000	212
$40,000-$45,000	154
$45,000-$50,000	151
$50,000-$60,000	407
$60,000-$75,000	711
$75,000-$100,000	897
$100,000-$125,000	817
$125,000-$150,000	802
$150,000-$200,000	1941
$200,000-$250,000	2032
$250,000-$500,000	870
$500,000 up	725

Level of Education

No High School:	298
Some High School:	314
High School Grad:	2556
Some College:	2056
Associate Degree:	932
Bachelors Degree:	7166
Graduate Degree:	6432