Cost of Living in Williamstown, NJ
Population 14,855 · New Jersey · Data vintage 2023
(100 = US avg)
Williamstown is a smaller New Jersey community of around 15000 residents, where median household incomes of $87,021 and housing costs ($255,000 for a typical home) give the local cost-of-living profile a distinctly small-town shape.
Geographically, Williamstown sits roughly 25 miles southeast of Philadelphia. Median home values run roughly 10% higher than Philadelphia's $232,000.
Cost Overview
Scale: 100 = US national average. Green < 90, Red > 110.
About the Cost of Living in Williamstown
The median home value in Williamstown is $255,000 — 16% below the national median of $305,000. Median rent runs $1,262/month, 4% lower than the national median of $1,314/month. The median household income of $87,021/year is 17% higher than the US median of $74,580. The local unemployment rate is 5.7%, above the national average of 4.8%. New Jersey's top state income tax rate is 10.8% and the combined sales tax is 6.6%. The climate averages highs of 65.2°F and lows of 47.3°F, with about 23.1" of annual snowfall. Overall, Williamstown has a cost of living index of 89 versus the US average of 100, meaning it is 11% less expensive.
🏠 Housing
HUD Fair Market Rents by Bedroom
💰 Estimated Monthly Budget
Estimates based on median data and national averages. Actual costs vary.
🛒 Food & Groceries
National BLS average prices (2023). Local prices may vary.
🚗 Transportation
Commute Mode
⚡ Utilities
📋 Taxes
💼 Income & Employment
🎓 Education
👥 Demographics
🌤 Climate
NOAA 1991–2020 Climate Normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 41 | 44 | 53 | 65 | 74 | 83 | 88 | 86 | 79 | 67 | 56 | 46 |
| Low °F | 26 | 28 | 34 | 44 | 54 | 64 | 70 | 68 | 61 | 49 | 39 | 31 |
| Precip" | 3.13 | 2.75 | 3.96 | 3.47 | 3.34 | 4.04 | 4.38 | 4.29 | 4.40 | 3.47 | 2.91 | 3.97 |
| Snow" | 7.1 | 8.4 | 3.6 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 3.5 |
💨 Air Quality
EPA AQS 2023 — county-level monitoring data
🏫 Schools
NCES CCD 2019 — public school district data
Frequently Asked Questions
What is the cost of living in Williamstown, NJ?
Williamstown has a cost index of 89 (100 = national average). It is 11% below the national average.
What is average rent in Williamstown, NJ?
The median gross rent in Williamstown is $1,262 per month based on 2023 Census data.
What is the average home price in Williamstown?
The median home value in Williamstown is $255,000 according to Zillow and Census data.
What is the median income in Williamstown?
The median household income in Williamstown is $87,021 per year (2023 ACS 5-year estimates).
What is the sales tax in Williamstown, NJ?
The combined state and local sales tax rate in Williamstown is 6.6%. The New Jersey state income tax top rate is 10.8%.
Is Williamstown, NJ affordable?
Yes, Williamstown is generally considered affordable, with a cost of living index of 89 — about 11% below the US national average of 100.
What is the weather like in Williamstown?
Williamstown has average high temperatures of 65.2°F and average lows of 47.3°F. Annual precipitation is 44.1". Average annual snowfall is 23.1". Data from NOAA 1991–2020 Climate Normals.
Williamstown at a Glance
- Population
- 14,855
- Median Income
- $87,021
- Home Value
- $255,000
- Median Rent
- $1,262/mo
- Unemployment
- 5.7%
- Avg High Temp
- 65.2°F
- Sales Tax
- 6.6%
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