Williamstown, Massachusetts Population 2020

4,446

Williamstown is a city located in Massachusetts. Williamstown has a 2020 population of 4,446. Williamstown is currently declining at a rate of 0.00% annually and its population has increased by 2.80% since the most recent census, which recorded a population of 4,325 in 2010. Williamstown reached it's highest population of 4,446 in 2018.

The average household income in Williamstown is $111,244 with a poverty rate of 12.91%. The median rental costs in recent years comes to $1,013 per month, and the median house value is $365,900. The median age in Williamstown is 21.2 years, 21.4 years for males, and 21 years for females. For every 100 females there are 82.4 males.

Williamstown Demographics

According to the most recent ACS, the racial composition of Williamstown was:

  • White: 75.44%
  • Asian: 8.55%
  • Black or African American: 6.34%
  • Two or more races: 5.60%
  • Other race: 3.01%
  • Native American: 1.06%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Williamstown, Massachusetts is 4,446, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 4,446.The last official US Census in 2010 recorded the population at 4,325.

Williamstown, Massachusetts Population 2020

Population by Race

Race Population Percentage
White3,35475.44%
Asian3808.55%
Black or African American2826.34%
Two or More Races2495.60%
Some Other Race1343.01%
American Indian and Alaska Native471.06%

Williamstown Population Pyramid 2020

Williamstown Median Age

21.2


Total

21.4


Male

21


Female

Williamstown Adults

There are 3,890 adults, (521 of whom are seniors) in Williamstown.

Williamstown Age Dependency

32

Age Dependency Ratio

15.5

Old Age Dependency Ratio

16.5

Child Dependency Ratio

Williamstown Sex Ratio

Female

2,437

54.81%

Male

2,009

45.19%

Williamstown Households and Families

Williamstown Renter vs Owner Occupied by Household Type

Williamstown Household Types

Type Owner Renter
Married82.6%17.4%
All62.4%37.6%
Female51.4%48.6%
Non Family45.9%54.1%
Male41.2%58.8%

62.4%

Rate of Home Ownership

Type Count Average Size Owned
All1,0262.1362.4
Non Family4511.1545.9
Married4472.9982.6
Female1112.6851.4
Male172.0641.2

2.89

Average Family Size

2.13

Average Household Size

1%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Williamstown Education

Education Attained Count Percentage
Less Than 9th Grade0.00%
9th to 12th Grade1026.60%
High School Graduate1429.19%
Some College15510.03%
Associates Degree774.98%
Bachelors Degree34422.27%
Graduate Degree72546.93%

Williamstown Educational Attainment by Race

Name Total High School Bachelors
White1,3481,300967
Asian783939
Hispanic614634
Multiple Races333310
Black191919
Native American1818
Other Race999

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among black people with a rate of 100.00%.

Name Average Male Female
Overall$51,800$62,261$42,188
Less Than High School$$$
High School Grad$31,786$$31,071
Some College$25,750$26,375$
Bachelors Degree$27,059$46,382$19,408
Graduate Degree$69,141$96,750$54,375

$51,800

Average Earnings

$62,261

Average Male

$42,188

Average Female

Williamstown Language

Williamstown Language by Age

Williamstown Language

79.95% of Williamstown residents speak only English, while 20.05% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 7.71% of the population.

Williamstown Poverty

Williamstown Poverty by Race

Name Total In Poverty Poverty Rate
Hispanic20414671.57%
White1,743975.57%
Multiple1889248.94%
Asian1053937.14%

12.91%

Overall Poverty Rate

10.55%

Male Poverty Rate

15.14%

Female Poverty Rate

Poverty in Williamstown

The race most likely to be in poverty in Williamstown is Hispanic, with 71.57% below the poverty level.

The race least likely to be in poverty in Williamstown is White, with 5.57% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.00%. Among those working part-time, it was 16.55%, and for those that did not work, the poverty rate was 22.38%.

Name Poverty
Less Than High School62.75%
High School4.93%
Bachelors or Greater1.78%
Some College0.00%
Name Poverty
Male Unemployed100.00%
Female Unemployed83.08%
Female Employed5.02%
Male Employed3.27%

Williamstown Income

Williamstown Income by Household Type

Name Median Mean
Households$75,875$111,244
Families$122,656$155,854
Married Families$140,375-
Non Families$39,803$54,265

Williamstown Marital Status

Williamstown Marital Status

Marriage Rates

23.0%

Overall Marriage Rate

26.7%

Male Marriage Rate

20.0%

Female Marriage Rate

Williamstown Married by Age and Sex

Williamstown Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.

Williamstown Marital Status by Race

Williamstown Veterans

86

Number of Veterans

67

Male Veterans

19

Female Veterans

War Veterans
Vietnam30
First Gulf War16
World War II9
Korea9
Second Gulf War
Age Group Veterans
75+30
65 to 7430
55 to 6419
35 to 547
18 to 34

$Williamstown Veterans by Education

0.00%

Veteran Poverty Rate

33.72%

Veteran Disability Rate

Williamstown Employment Status

63.3%

Labor Force Participation

59.8%

Employment Rate

5.5%

Unemployment Rate

Williamstown Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

30.52%

Born in Massachusetts

88.28%

Native Born

11.72%

Foreign Born

7.31%

Non Citizen

Place of Birth

88.28% of Williamstown residents were born in the United States, with 30.52% having been born in Massachusetts. 7.31% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
20204,4460.00%
20194,4460.00%
20184,4462175.13%
20174,229-86-1.99%
20164,315-122-2.75%
20154,4372646.33%
20144,173-34-0.81%
20134,20742011.09%
20123,7871353.70%
20113,652-673-15.56%
20104,3250.00%