Leominster, MA Profile: Facts, Map & Data


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Leominster, Massachusetts - Basic Facts

The City of Leominster had a population of 40,723 as of July 1, 2015. Leominster ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Massachusetts. See peer rankings below.

The primary coordinate point for Leominster is located at latitude 42.5208 and longitude -71.7705 in Worcester County. The formal boundaries for the City of Leominster (see map below) encompass a land area of 28.82 sq. miles and a water area of 0.86 sq. miles. Worcester County is in the Eastern time zone (GMT -5). The elevation is 390 feet.

The City of Leominster (GNIS ID: 618369) 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 Leominster population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2015.

Alternate Unofficial Names for Leominster: Leominster Centre.

Neighborhood Data

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City of Leominster, MA Boundary Map

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Leominster, MA Data & Demographics (As of July 1, 2015)


Total Population 40,723
Population in Households 40,384
Population in Familes 31,567
Population in Group Qrtrs 339
Population Density1 1,413
Diversity Index2 52


Total Households 16,831
Average Household Size 2.4
Family Households 10,507
Average Family Size 3


Total Housing Units 18,119 (100%)
Owner Occupied HU 9,935 (54.8%)
Renter Occupied HU 6,896 (38.1%)
Vacant Housing Units 1,288 ( 7.1%)
Median Home Value $216,726
Average Home Value $238,684


Median Household Income $57,227
Average Household Income $70,953
Per Capita Income $29,348
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.02% 0.25%
Households 0.07% 0.28%
Families -0.09% 0.19%
Median Household Income   3.47%
Per Capita Income   2.36%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Leominster, MA - Peer Comparisons by Rank and Percentile

The table below compares Leominster to the other 244 incorporated cities, towns and CDPs in Massachusetts by rank and percentile using July 1, 2015 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 # 34 86th
Population Density1 # 120 51st
Diversity Index2 # 30 88th
Median Household Income # 172 30th
Per Capita Income # 179 27th

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