Updated 2026 · Based on median market data for Cullman, AL
The median monthly rent in Cullman, AL is $1,510, translating to $18,120 in annual gross rental income per unit. The rent-to-price ratio is 0.60% — well below the 1% rule, making pure cash flow investing challenging at median prices.
Renters in Cullman spend approximately 37% of the local median household income ($49,614) 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 Cullman is 6.4%. This is a healthy vacancy rate that indicates balanced supply and demand. You should be able to find quality tenants without extended vacancies, though expect normal turnover periods of 2-4 weeks between tenants. Population growth of 0.8% annually provides stable demand.
Cullman'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 $1,510/mo, a single-family rental in Cullman generates approximately $18,120 in gross annual income. After accounting for 6.4% vacancy ($1,160 lost), property taxes of $1,050, insurance (~$1,000), and maintenance (~$1,000), the estimated NOI is $13,910 per year, or $1,159/mo.
Cullman vs Alabama state average and national average across key investment metrics. Cullman beats the national average but trails the Alabama average on cap rate.