Williamstown, NJ
Demographics And Statistics

Demographics | Cost Of Living
Updated: 2025-10-25

Living In Williamstown, New Jersey Summary

Life in Williamstown research summary. HomeSnacks has been using Saturday Night Science to research the quality of life in Williamstown over the past nine years using Census, FBI, Zillow, and other primary data sources. Based on the most recently available data, we found the following about life in Williamstown:

  • The population in Williamstown is 14,855.

  • The median home value in Williamstown is $367,879.

  • The median income in Williamstown is $87,021.

  • The cost of living in Williamstown is 103 which is 1.0x higher than the national average.

  • The median rent in Williamstown is $1,262.

  • The unemployment rate in Williamstown is 5.6%.

  • The poverty rate in Williamstown is 7.3%.

  • The average high in Williamstown is 64.8° and the average low is 46.6°.

Williamstown SnackAbility

6
Overall SnackAbility
Jobs
9/10
Housing
8
Affordability
8.5
Diversity
8
Safety
N/A
Amenities
8.5
Education
8
Commute
3

Williamstown, NJ Cost Of Living

Cost of living in Williamstown summary. We use data on the cost of living to determine how expensive it is to live in Williamstown. Real estate prices drive most of the variance in cost of living around New Jersey. Key points include:

  • The cost of living in Williamstown is 103 with 100 being average.

  • The cost of living in Williamstown is 1.0x higher than the national average.

  • The median home value in Williamstown is $367,879.

  • The median income in Williamstown is $87,021.

103
Williamstown's Overall Cost Of Living
1.0x
Higher Than The National Average

Cost Of Living In Williamstown Comparison Table

Living Expense Williamstown New Jersey National Average
Overall 103 122 100
Services 104 108 100
Groceries 100 104 100
Health 95 99 100
Housing 108 159 100
Transportation 108 101 100
Utilities 110 107 100

Williamstown, NJ Weather

  • The average high in Williamstown is 64.8° and the average low is 46.6°.

  • There are 73.9 days of precipitation each year.

  • Expect an average of 45.5 inches of precipitation each year with 16.6 inches of snow.

StatWilliamstown
Average Annual High64.8
Average Annual Low46.6
Annual Precipitation Days73.9
Average Annual Precipitation45.5
Average Annual Snowfall16.6
64.8°
Average High
73.9
Days of Rain

Rankings for Williamstown in New Jersey

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Map Of Williamstown, NJ

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Williamstown Demographics And Statistics

Population over time in Williamstown

The current population in Williamstown is 14,855. The population has increased 4.4% from 2010.

Year Population % Change
2023 14,855 0.6%
2022 14,770 -1.2%
2021 14,947 5.6%
2020 14,161 -3.3%
2019 14,641 -2.1%
2018 14,962 -1.5%
2017 15,191 0.1%
2016 15,170 -2.4%
2015 15,539 0.7%
2014 15,425 0.0%
2013 15,423 1.1%
2012 15,256 4.6%
2011 14,588 2.5%
2010 14,232 -

Race / Ethnicity in Williamstown

White
76.8% (11,410)
African American
9.1% (1,359)
American Indian
0.0% (7)
Asian
0.7% (107)
Hawaiian
0.0% (0)
Other
0.0% (0)
Two Or More
5.8% (863)
Hispanic
7.5% (1,109)

Williamstown is:

  • 76.8% White with 11,410 White residents.

  • 9.1% African American with 1,359 African American residents.

  • 0.0% American Indian with 7 American Indian residents.

  • 0.7% Asian with 107 Asian residents.

  • 0.0% Hawaiian with 0 Hawaiian residents.

  • 0.0% Other with 0 Other residents.

  • 5.8% Two Or More with 863 Two Or More residents.

  • 7.5% Hispanic with 1,109 Hispanic residents.

Race Williamstown NJ USA
White 76.8% 51.9% 58.2%
African American 9.1% 12.3% 12.0%
American Indian 0.0% 0.1% 0.5%
Asian 0.7% 9.8% 5.7%
Hawaiian 0.0% 0.0% 0.2%
Other 0.0% 0.8% 0.5%
Two Or More 5.8% 3.2% 3.9%
Hispanic 7.5% 21.9% 19.0%

Gender in Williamstown

Female
54.0% (8,025)
Male
46.0% (6,829)
  • Williamstown is 54.0% female with 8,025 female residents.

  • Williamstown is 46.0% male with 6,829 male residents.

Gender Williamstown NJ USA
Female 54.0% 50.8% 50.5%
Male 46.0% 49.2% 49.5%

Highest level of educational attainment in Williamstown for adults over 25

  • 1.0% of adults in Williamstown completed < 9th grade.

  • 2.0% of adults in Williamstown completed 9-12th grade.

  • 36.0% of adults in Williamstown completed high school / ged.

  • 23.0% of adults in Williamstown completed some college.

  • 11.0% of adults in Williamstown completed associate's degree.

  • 20.0% of adults in Williamstown completed bachelor's degree.

  • 6.0% of adults in Williamstown completed master's degree.

  • 1.0% of adults in Williamstown completed professional degree.

  • 0.0% of adults in Williamstown completed doctorate degree.

< 9th Grade
1.0% (148)
9-12th Grade
2.0% (297)
High School / GED
36.0% (5,347)
Some College
23.0% (3,416)
Associate's Degree
11.0% (1,634)
Bachelor's Degree
20.0% (2,971)
Master's Degree
6.0% (891)
Professional Degree
1.0% (148)
Doctorate Degree
0.0% (0)
Education Williamstown NJ USA
< 9th Grade 1.0% 3.0% 5.0%
9-12th Grade 2.0% 5.0% 6.0%
High School / GED 36.0% 26.0% 26.0%
Some College 23.0% 15.0% 19.0%
Associate's Degree 11.0% 7.0% 9.0%
Bachelor's Degree 20.0% 26.0% 21.0%
Master's Degree 6.0% 13.0% 10.0%
Professional Degree 1.0% 3.0% 2.0%
Doctorate Degree 0.0% 2.0% 2.0%

Household Income For Williamstown, New Jersey

  • 5.0% of households in Williamstown earn Less than $10,000.

  • 5.8% of households in Williamstown earn $10,000 to $14,999.

  • 4.1% of households in Williamstown earn $15,000 to $24,999.

  • 6.9% of households in Williamstown earn $25,000 to $34,999.

  • 8.4% of households in Williamstown earn $35,000 to $49,999.

  • 14.0% of households in Williamstown earn $50,000 to $74,999.

  • 10.6% of households in Williamstown earn $75,000 to $99,999.

  • 18.5% of households in Williamstown earn $100,000 to $149,999.

  • 15.2% of households in Williamstown earn $150,000 to $199,999.

  • 11.7% of households in Williamstown earn $200,000 or more.

Less than $10,000
5.0% (73,843)
$10,000 to $14,999
5.8% (85,516)
$15,000 to $24,999
4.1% (60,648)
$25,000 to $34,999
6.9% (101,757)
$35,000 to $49,999
8.4% (124,848)
$50,000 to $74,999
14.0% (208,081)
$75,000 to $99,999
10.6% (157,076)
$100,000 to $149,999
18.5% (274,820)
$150,000 to $199,999
15.2% (225,590)
$200,000 or more
11.7% (173,316)
Income Williamstown NJ USA
Less than $10,000 5.0% 4.0% 4.9%
$10,000 to $14,999 5.8% 2.9% 3.6%
$15,000 to $24,999 4.1% 5.0% 6.6%
$25,000 to $34,999 6.9% 5.3% 6.8%
$35,000 to $49,999 8.4% 8.0% 10.4%
$50,000 to $74,999 14.0% 12.9% 15.7%
$75,000 to $99,999 10.6% 11.4% 12.7%
$100,000 to $149,999 18.5% 18.0% 17.4%
$150,000 to $199,999 15.2% 11.7% 9.3%
$200,000 or more 11.7% 20.7% 12.6%

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