Overview
          16,291
                  Total Population
                41.6
                  Median age
                51.11%
                  Female population %
                95.7:100
                  Gender ratio (M:F)
                45-49 years
                  Largest age group
                51.8
                  Total dependency ratio
                White
                  Largest racial group
                1,81
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Northbridge town's population is old compared to the rest of the country:
- The median age in Northbridge town is 41.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Northbridge town's population under 18 was 22.04%, compared to the 22.51% nationwide.
 - Northbridge town's elderly or the senior population (over 65 age) was 15.59% as compared to 16.04% nationwide.
 - Of the total population in Northbridge town, 18.53% were under the age of 15, 17.11% aged 15 to 29, 48.78% aged 30 to 64, 13.49% aged 65 to 84, and 2.09% were 85 years of age and older.
 
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Gender
There are 361 more females than males in Northbridge town:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.11% females and 48.89% males in Northbridge, Massachusetts.
 - The Northbridge, Massachusetts gender ratio is 95.7:100 i.e. 95.7 men to 100 women (0.957).
 - For male population, the largest age group is 45-49 years with a population of 704.
 - For the female population, the largest age group is 45-49 years with a population of 722.
 
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Race / Ethnicity
Northbridge town's population has become increasingly diverse:
- Racial distribution of Northbridge town population: 88.40% are White, 1.59% are Black or African American, 0.09% are American Indian and Alaska Native, 0.24% are Asian, 0.09% are Native Hawaiian and other Pacific Islander, 3.66% are some other race and 5.94% are multiracial.
 - Northbridge town's racial breakdown clearly shows that there is an absolute majority of White population in the town.
 - By ethnicity, 1,81 is Hispanic or Latino (of any race), and 14,481 (88.89% of the total population) is Non-Hispanic.
 - The largest racial group in Northbridge town is White with a population of 14,401 (88.40% of the total population).
 
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Year by year
Northbridge town's population has already reached its peak and is showing a trend of decline:
- The peak population was 16,679 in the year 2018
 - From 2000 to 2010, Northbridge town's population increased by 2,557 (19.42%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Northbridge town's population increased by 591 (3.76%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
 - Between the year 2000 and 2022, Northbridge town's population was lowest in year 2000 at 13,165.
 
Read more about Northbridge, Massachusetts population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
 - U.S. Census Bureau Population Estimates Population Estimates Program (PEP)