Arnold, MD vs Rockville, MD

Arnold is moderately more affordable than Rockville, with a 8.3% lower cost of living index. Arnold scores 147 compared to 160 for Rockville, where the US average is 100. This difference means residents of Rockville can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Arnold is $2,177/month compared to $2,244/month in Rockville — a 3% difference. Home values follow the same pattern: Arnold is more affordable at $547,800 median vs $658,300.

Median household income in Arnold is $137,799 compared to $122,384 in Rockville (+12.6%). Arnold offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Arnold spend roughly 19% of their income on rent, less than the 22% in Rockville.

Climate-wise, both cities share similar average temperatures (57.7°F vs 59.3°F). Arnold receives more rainfall at 44" per year compared to 41.8" in Rockville.