Updated 2026 · Based on median market data for Birmingham, AL
The median monthly rent in Birmingham, AL is $1,120, translating to $13,440 in annual gross rental income per unit. The rent-to-price ratio is 0.61% — well below the 1% rule, making pure cash flow investing challenging at median prices.
Renters in Birmingham spend approximately 34% of the local median household income ($40,100) on rent. This exceeds the standard 30% affordability threshold, suggesting rent growth may face resistance — but it also means a large portion of the population finds buying even more out of reach, supporting rental demand.
The vacancy rate in Birmingham is 7%. This is above the national average and warrants careful tenant screening and marketing. Budget for longer vacancy periods between tenants and consider offering competitive amenities or pricing to reduce turnover. Population growth of 0.3% annually provides stable demand.
Birmingham's GRM (price divided by annual rent) is 13.8x. A GRM between 12-16x is moderate and typical of balanced markets. Deals can work but you need to keep expenses controlled. For comparison, the national average GRM for investment-grade rentals is approximately 13-15x.
At the median rent of $1,120/mo, a single-family rental in Birmingham generates approximately $13,440 in gross annual income. After accounting for 7% vacancy ($941 lost), property taxes of $777, insurance (~$740), and maintenance (~$740), the estimated NOI is $10,242 per year, or $854/mo.