Spearfish, SD vs Watertown, SD

Watertown is moderately more affordable than Spearfish, with a 12% lower cost of living index. Spearfish scores 85 compared to 76 for Watertown, where the US average is 100. This difference means residents of Spearfish can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Spearfish is $941/month compared to $904/month in Watertown — a 4% difference. Home values follow the same pattern: Watertown is more affordable at $212,300 median vs $309,200.

Median household income in Spearfish is $59,731 compared to $62,721 in Watertown (-4.8%). Watertown offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Spearfish spend roughly 18.9% of their income on rent, more than the 17.3% in Watertown.