Sewickley, PA vs Williamstown, PA

The cost of living difference between Sewickley, PA and Williamstown, PA is dramatic. Williamstown is 42.6% cheaper than Sewickley, a gap that translates to thousands of dollars per year in household expenses. Sewickley has a cost index of 99 while Williamstown sits at 70, making this one of the more striking comparisons on our site. Relocating between these cities would require a serious reassessment of budget and lifestyle expectations.

On the housing front, median rent in Sewickley is $961/month compared to $917/month in Williamstown — a 5% difference. Home values follow the same pattern: Williamstown is more affordable at $95,200 median vs $449,700.

Median household income in Sewickley is $94,828 compared to $61,875 in Williamstown (+53.3%). While Sewickley is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Sewickley spend roughly 12.2% of their income on rent, less than the 17.8% in Williamstown.