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:	1489
5-9 years:	1925
10-14 years:	2164
15-19 years:	3615
20-24 years:	1880
25-29 years:	1710
30-34 years:	939
35-39 years:	994
40-44 years:	1460
45-49 years:	2309
50-54 years:	2795
55-59 years:	2708
60-64 years:	2259
65-69 years:	1817
70-74 years:	1313
75-79 years:	836
80-84 years:	576
85+ years:	620

Marital Status

Never Married:	5966
Now Married:	16844
Separated:	160
Widowed:	1393
Divorced:	1467

Median Income By Age

Under 25 years:	$27,609
25-44 years:	$184,336
45-64 years:	$171,422
Over 64 years:	$76,516

Household Income by Dollar Range

$0-$10,000	127
$10,000-$15,000	226
$15,000-$20,000	134
$20,000-$25,000	198
$25,000-$30,000	168
$30,000-$35,000	220
$35,000-$40,000	221
$40,000-$45,000	169
$45,000-$50,000	214
$50,000-$60,000	454
$60,000-$75,000	713
$75,000-$100,000	795
$100,000-$125,000	768
$125,000-$150,000	973
$150,000-$200,000	1973
$200,000-$250,000	2004
$250,000-$500,000	857
$500,000 up	714

Level of Education

No High School:	227
Some High School:	264
High School Grad:	2703
Some College:	1918
Associate Degree:	927
Bachelors Degree:	7540
Graduate Degree:	6758