South New Castle, Pennsylvania

About South New Castle

South New Castle, PA is a tiny community located in northwestern Pennsylvania with an estimated population of 636.

Officially, South New Castle is a borough — a form of municipal government most common in the Northeast. The community covers 0.32 square miles, giving it a balanced suburban layout with room to breathe at roughly 1,988 residents per square mile.

📰 Local News

Read the latest Pennsylvania headlines on our news site, Bless News Daily.

What Makes South New Castle Unique

• The only place in America named South New Castle — a truly one-of-a-kind name among 32,000+ US communities.
• Positioned in northwestern Pennsylvania, convenient to the region's corridors and crossings.
• Part of the fabric of Pennsylvania — one of 2,002 recognized communities statewide.

Why People Love It Here

• Small-town pace of life: less traffic, more community, and neighbors who wave.
• Housing dollars stretch further here than in the nearest metro.
• Well connected: 3+ neighboring communities within 4 miles.

📍 Neighborhoods in South New Castle

Click a neighborhood to see it on the map.

🏞️ Parks & Outdoors in South New Castle

• Cascade Park reviews ★
• Cunningham Park reviews ★
• Gaston Park reviews ★
• Shenango Park reviews ★
• Victory Family Church Gazebo reviews ★
• Victory Family Church Playground reviews ★

Parks mapped by the OpenStreetMap community · "reviews" opens each park's live Google reviews.

⚡ Quick Facts

🌤️ Current Weather

Full forecast →

Source: National Weather Service

🗺️ Map of South New Castle

🏘️ Nearby Communities