Updated 2026 · Based on median market data for Knoxville, TN
The median monthly rent in Knoxville, TN is $1,720, translating to $20,640 in annual gross rental income per unit. The rent-to-price ratio is 0.48% — well below the 1% rule, making pure cash flow investing challenging at median prices and requiring investors to target below-median purchases or value-add strategies. For context, a 0.48% rent-to-price ratio means that for every $100,000 invested in property, you collect approximately $485/mo in gross rent. The gross rent multiplier of 17.2x means it takes 17.2 years of gross rent to equal the purchase price — a high ratio that reflects price appreciation outpacing rent growth.
Renters in Knoxville spend approximately 44% of the local median household income ($46,800) 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 deep rental demand. Landlords should be cautious about aggressive rent increases and focus instead on tenant retention to minimize costly turnover.
The vacancy rate in Knoxville is 5.2%. 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. Budget for one month of vacancy per year in your underwriting to be conservative. Population growth of 1.2% annually is actively adding rental demand, creating a tailwind for landlords.
Knoxville's GRM (price divided by annual rent) is 17.2x. A GRM above 16x means the property is expensive relative to its income. Investors here are typically betting on appreciation rather than current cash flow, which adds risk if the appreciation thesis does not materialize. For comparison, the national average GRM for investment-grade rentals is approximately 13-15x. To beat Knoxville's median GRM, target properties where you can achieve rents above $1,720 through renovations, better marketing, or targeting underserved tenant segments — or buy at a discount to the $355,000 median price. Every point lower on GRM translates to roughly 0.5-0.8% improvement in your cap rate.
At the median rent of $1,720/mo, a single-family rental in Knoxville generates approximately $20,640 in gross annual income. After accounting for 5.2% vacancy ($1,073 lost), property taxes of $1,953, insurance (~$1,420), and maintenance (~$1,420), the estimated NOI is $14,774 per year, or $1,231/mo. Adding an 8% management fee ($1,651/yr) reduces investor cash flow further. Before debt service, you are looking at approximately $13,123/yr in landlord net income. Whether this is attractive depends on your total capital invested — at a $71,000 down payment, the unlevered yield on equity from NOI alone is 20.8%.
Rent growth in Knoxville is driven by the interplay of population growth (1.2%), income growth, and housing supply constraints. Moderate population growth of 1.2% supports steady rent increases of approximately 2.5% per year. That trajectory takes today's $1,720/mo to $1,852 in 3 years and $1,946 in 5 years. The affordability headroom of $-550/mo between current rents and the 30% income threshold is essentially zero, meaning rent increases must be matched by income growth to avoid tenant turnover.
The median income of $46,800 supports a mixed tenant base of young professionals, small families, and long-term renters. In a smaller market of 192,648 residents, word-of-mouth and local listing platforms may be more effective than national sites for finding tenants.
As a mid-sized market, Knoxville has property management options but less competition among PMs. Expect fees of 8-12% of collected rent. At $1,720/mo, budget $172/mo for management. Self-management makes sense if you are local, have fewer than 5 units, and the rent level justifies your time — at $1,720/mo per unit, the income per unit is high enough that professional management is clearly affordable and preserves your time for deal sourcing.
Knoxville vs Tennessee state average and national average across key investment metrics. Knoxville outperforms both benchmarks on cap rate.