As of April 2026, the real estate market in the 15666 ZIP code is considered "buyer-balanced": $192,500. Average Days on Market: 34 days.
The ZIP code (often mistakenly searched as 156666) belongs to Mount Pleasant, Pennsylvania . Located in Westmoreland County, this area is a historic hub famous for its 19th-century glass-making industry. 📍 Location & Demographics Primary City: Mount Pleasant, PA . County: Westmoreland County. Time Zone: Eastern Time (UTC-5). 156666 zip
Approximately 16,000 residents as of recent estimates. As of April 2026, the real estate market
A mix of historic borough charm and rural landscapes. 🏠 Housing & Real Estate As of April 2026