Platform · Glossary
Rent-to-income ratio.
The rent-to-income ratio compares typical gross rent with typical household income in the same area. It is also searched as rent percentage of income, income-to-rent ratio, or rent-to-income ratio for landlords.
On PriceDNA market pages, the ratio is a market-level affordability signal. It helps investors compare how much pressure local rent places on local incomes and whether rent growth may face affordability constraints.
Formula
Rent-to-income ratio = Median gross rent ÷ Median household income
Because rent is usually reported monthly and household income annually, the periods must match before dividing:
Annual rent-to-income ratio = (Median monthly gross rent × 12) ÷ Median annual household income
For example, median gross rent of $1,500 per month and median household income of $72,000 per year produce a rent-to-income ratio of 25%:
($1,500 × 12) ÷ $72,000 = 25%
How investors can read it
A lower ratio generally means typical rent consumes a smaller share of typical income. A higher ratio suggests greater affordability pressure and less room for rents to rise unless incomes also increase.
The ratio is most useful when compared across similar markets and read alongside:
- rent growth;
- rental vacancy;
- median household income;
- local housing composition; and
- the property’s achievable rent and operating assumptions.
It should not be used alone to label a market attractive or unattractive. A lower ratio can reflect strong incomes, low rents, or both. A higher ratio can reflect constrained supply, strong demand, lower incomes, or a combination of those conditions.
The 30% benchmark
Housing agencies commonly use 30% of household income as a household-level rent-burden benchmark. A city-level ratio built from two medians is not the same as measuring the share of individual households that are rent-burdened.
For that reason, PriceDNA uses the market ratio as comparative context rather than claiming that every renter above a citywide threshold is burdened or that rents below it can safely increase.
How PriceDNA uses it
PriceDNA calculates rent-to-income ratio from Census ACS median gross rent and median household income. Market pages show the local tract distribution alongside state and U.S. benchmarks so investors can see whether affordability pressure is concentrated in some neighborhoods or broadly shared across the market.
The ratio is educational market context. It is not tenant-screening guidance, an appraisal, a rent recommendation, or a guarantee of future rent growth or occupancy.