Updated 2026 · Based on median market data for Honolulu, HI
The median monthly rent in Honolulu, HI is $2,800, translating to $33,600 in annual gross rental income per unit. The rent-to-price ratio is 0.33% — 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 0.33% rent-to-price ratio means that for every $100,000 invested in property, you collect approximately $331/mo in gross rent. The gross rent multiplier of 25.1x means it takes 25.1 years of gross rent to equal the purchase price — a high ratio that reflects price appreciation outpacing rent growth.
Renters in Honolulu spend approximately 40% of the local median household income ($84,200) 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 Honolulu is 4.2%. This is extremely tight — expect strong tenant demand, quick lease-ups, and leverage to set favorable lease terms. In markets this tight, landlords often see multiple applications per listing and can be highly selective on credit scores and income verification. You can also justify annual rent increases of 3-5% without significant pushback. Population growth of 0.2% annually provides stable demand.
Honolulu's GRM (price divided by annual rent) is 25.1x. 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 Honolulu's median GRM, target properties where you can achieve rents above $2,800 through renovations, better marketing, or targeting underserved tenant segments — or buy at a discount to the $845,000 median price. Every point lower on GRM translates to roughly 0.5-0.8% improvement in your cap rate.
At the median rent of $2,800/mo, a single-family rental in Honolulu generates approximately $33,600 in gross annual income. After accounting for 4.2% vacancy ($1,411 lost), property taxes of $2,366, insurance (~$3,380), and maintenance (~$3,380), the estimated NOI is $23,063 per year, or $1,922/mo. Adding an 8% management fee ($2,688/yr) reduces investor cash flow further. Before debt service, you are looking at approximately $20,375/yr in landlord net income. Whether this is attractive depends on your total capital invested — at a $169,000 down payment, the unlevered yield on equity from NOI alone is 13.6%.
Rent growth in Honolulu is driven by the interplay of population growth (0.2%), income growth, and housing supply constraints. With 0.2% population growth, organic rent growth will be slower — roughly 1.5% annually, taking rents from $2,800 to $3,016 over 5 years. The affordability headroom of $-695/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 high local income of $84,200 combined with elevated home prices ($845,000 median) creates a tenant base of working professionals — often young professionals, dual-income couples, and corporate relocations who choose to rent for flexibility. These tenants typically have strong credit, stable employment, and expect well-maintained properties with modern finishes. They are less price-sensitive but more demanding on property condition and responsiveness. The larger population base of 345,510 gives you a deeper tenant pool to draw from, reducing re-leasing time.
Honolulu is a large enough market to support multiple professional property management companies, giving you negotiating leverage on fees. Expect to pay 8-10% of collected rent for full-service management, with leasing fees of 50-100% of one month's rent for new tenant placement. At $2,800/mo rent, that is $252/mo in management fees. Self-management makes sense if you are local, have fewer than 5 units, and the rent level justifies your time — at $2,800/mo per unit, the income per unit is high enough that professional management is clearly affordable and preserves your time for deal sourcing.
Honolulu vs Hawaii state average and national average across key investment metrics. Honolulu's cap rate is below both benchmarks — deal sourcing is critical here.