Westfield, MA Profile: Facts, Map & Data


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Westfield, Massachusetts - Basic Facts

The City of Westfield had a population of 42,971 as of July 1, 2017.

The primary coordinate point for Westfield is located at latitude 42.1388 and longitude -72.7559 in Hampden County. The formal boundaries for the City of Westfield (see map below) encompass a land area of 46.26 sq. miles and a water area of 1.06 sq. miles. Hampden County is in the Eastern time zone (GMT -5). The elevation is 141 feet.

The City of Westfield (GNIS ID: 618193) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Westfield population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Westfield: Kee, Warronoco, Westfield Centre.

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City of Westfield, MA Boundary Map

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Westfield, MA Data & Demographics (As of July 1, 2017)


Total Population 42,971
Daytime Population: Workers 16,939
Daytime Population: Residents 22,990
Total Daytime Population (TDP) 39,929
Ratio TDP/Total Population1 0.93
Population in Households 39,715
Population in Familes 31,747
Population in Group Qrtrs 3,256
Population Density2 929
Diversity Index3 36


Median Household Income $59,717
Average Household Income $81,529
Per Capita Income $30,966


Total Housing Units 16,341 (100%)
Owner Occupied HU 10,363 (63.4%)
Renter Occupied HU 5,485 (33.6%)
Vacant Housing Units 493 ( 3.0%)
Median Home Value $232,319
Average Home Value $260,537


Total Households 15,848
Average Household Size 2.51
Family Households 10,303
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.62% 0.46%
Households 0.45% 0.41%
Families 0.36% 0.35%
Median Household Income   1.09%
Per Capita Income   2.09%

Westfield, MA - Peer Comparisons by Rank and Percentile

The table below compares Westfield to the other 246 incorporated cities, towns and CDPs in Massachusetts by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 32 87th
Population Density # 166 33rd
Diversity Index # 72 71st
Median Household Income # 172 30th
Per Capita Income # 183 26th

Additional comparisons and rankings can be made with a VERY EASY TO USE Massachusetts Census Data Comparison Tool.

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