Grand Bay, AL vs Mount Vernon, AL
Grand Bay, AL and Mount Vernon, AL have a very similar cost of living, with only a 2.6% difference in their overall index. Grand Bay scores 72 while Mount Vernon scores 74 on the cost of living index, where 100 represents the national average. The day-to-day expenses for residents in both cities are comparable, though differences emerge when looking at specific categories.
On the housing front, median rent in Grand Bay is $963/month compared to $1,106/month in Mount Vernon — a 13% difference. Interestingly, home values tell a different story: while Grand Bay has cheaper rent, Mount Vernon actually has lower median home values ($114,400 vs $143,800).
Median household income in Grand Bay is $62,318 compared to $41,250 in Mount Vernon (+51.1%). Grand Bay offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Grand Bay spend roughly 18.5% of their income on rent, less than the 32.2% in Mount Vernon. The Grand Bay ratio exceeds the commonly recommended 30% threshold, which can put pressure on household budgets.
Climate-wise, both cities share similar average temperatures (67.8°F vs 67.6°F). Mount Vernon receives more rainfall at 67.1" per year compared to 61.7" in Grand Bay.
Income & Cost
Housing
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Rent by Bedroom Size
HUD Fair Market Rent (FY 2026) — metro area average
Everyday Prices
BLS Average Prices by metro area
Climate
NOAA 30-year normals (1991-2020)