If you already own apartments on Oʻahu or Maui, adding the Big Island can look simple on paper. It is not. A Big Island apartment can add a different price point, rent profile, and risk mix to your Hawaiʻi holdings, but only if you look at the island by submarket instead of treating it as one story. Let’s dive in.

Big Island Portfolio Role

For many investors, the Big Island fits best as a diversification play within a Hawaiʻi apartment portfolio. Hawaii County has a lower median gross rent and lower median owner-occupied home value than Honolulu County and Maui County, based on Census QuickFacts data.

At the county level, Hawaii County shows a median gross rent of $1,510 and a median owner-occupied value of $519,300. Compare that with Honolulu County at $2,083 rent and $897,500 value, and Maui County at $1,916 rent and $904,700 value. That gap matters if you want exposure to Hawaiʻi without repeating the same basis and pricing profile you already hold elsewhere.

Population trends also support why investors are taking a closer look. Hawaii County grew from 200,629 residents in 2020 to 209,790 in 2024, while both Honolulu and Maui counties declined over the same period. That does not make every Big Island apartment a fit, but it does help explain why the market deserves attention.

Why Lower Basis Matters

A lower basis can create more flexibility in your portfolio planning. If you are comparing options across islands, the Big Island may let you enter or expand at a different cost level than Oʻahu or Maui.

That does not automatically mean better performance. It means you are working with a different starting point on acquisition price, rent levels, and exit expectations. In practice, that can be useful for exchangers, long-term holders, and investors trying to spread risk across more than one Hawaiʻi submarket.

Housing Supply Still Looks Tight

The broader housing backdrop in Hawaiʻi remains constrained. UHERO reports that Hawaiʻi residents face the highest housing costs in the nation, housing production remains slow, and median processing times for multifamily permits reached 585 days in the first half of 2025.

DBEDT projects an average statewide need for 32,970 housing units between 2025 and 2035. For apartment investors, that supports the idea that supply is not easily catching up to demand. It also reinforces why disciplined underwriting matters more than broad assumptions.

Kona Is Not Hilo

One of the biggest mistakes you can make is talking about the Big Island as if it were one apartment market. It is much more useful to separate Kona-side assets from Hilo-side assets when you think about portfolio fit.

Kailua, which serves as the Kona-side census proxy in the research, shows 19,713 residents, 7,598 households, median gross rent of $1,754, median household income of $88,211, and median owner-occupied value of $667,400. Hilo shows 44,186 residents, 17,750 households, median gross rent of $1,427, median household income of $81,779, and median owner-occupied value of $483,000.

Those figures point to two different investment stories. The Kona side sits in a higher rent and value tier, while Hilo appears more affordable and larger by population and households. If you are weighing a Big Island acquisition, that difference should shape your underwriting from day one.

What Kailua Kona Suggests

In Kailua Kona, the rent and value profile is noticeably above Hilo. That can appeal to investors who want a Big Island position without moving too far down the pricing ladder from Oʻahu or Maui.

At the same time, the Kona-side population base is smaller. That means you should be careful about assuming broad renter depth simply because countywide trends look favorable. In a less dense market, localized demand matters more.

Density Changes the Analysis

Hawaii County is far less dense than Honolulu County. Census data shows Hawaii County at 49.8 people per square mile, compared with 1,692.4 in Honolulu County.

That single fact changes how apartment demand should be evaluated. On Oʻahu, broad location narratives can sometimes carry more weight because density supports larger renter pools. On the Big Island, demand is more localized, so building performance should be judged by its immediate node, tenant base, and likely exit market.

Owner Occupancy Matters Too

The countywide ownership mix also matters. Hawaii County is 74.0% owner-occupied, compared with 59.8% in Honolulu County and 65.6% in Maui County.

That suggests a smaller renter pool relative to owner households. For you as an investor, the takeaway is simple: a Big Island apartment should not be underwritten by island name alone. You need to evaluate the specific demand pocket and how durable that renter base looks.

What Supports Apartment Demand

The Big Island demand story is tied to both jobs and visitor activity. Colliers reported that Hawaii Island ended 2025 with non-agricultural wage and salary jobs rising slightly from 74,500 to 74,700 year over year, while unemployment fell from 3.10% in December 2024 to 2.50% in December 2025.

DBEDT also reported 1,752,589 Hawaii Island visitors in calendar year 2025, up 1.0% from 2024. Those numbers do not guarantee apartment performance, but they do show a market supported by active economic and visitor flows rather than a purely speculative story.

This Is Not a Rent Spike Thesis

If you are looking for a fast-rent-growth narrative, the statewide data does not really support that today. UHERO’s 2026 Housing Factbook says statewide median rent in 2024 was only 0.1% above the 2023 level.

That makes the current environment more practical for steady-income underwriting than for betting on sharp rent jumps. In other words, the Big Island may fit best when you are focused on realistic income, basis discipline, and long-term portfolio balance.

Why Maui Is a Useful Contrast

Maui is worth mentioning because it highlights how different Hawaiʻi submarkets can become under stress. UHERO’s Maui Recovery Survey update found that more than a third of fire-affected households were still in temporary housing in mid-2025, and studio and one-bedroom rents were about $1,800 in June 2025, roughly 50% above pre-fire levels.

That does not mean Maui is off the table. It means Maui’s recent housing conditions reflect a very different risk profile than a normal-cycle Big Island apartment asset. For portfolio planning, that contrast helps clarify why cross-island diversification can matter.

When Big Island Apartments Fit Best

A Big Island apartment can make sense when you want to add Hawaiʻi exposure without simply duplicating your Oʻahu or Maui profile. It may also fit if you are completing a 1031 exchange and need to compare replacement options across islands with different pricing and rent structures.

The strongest case is usually not that the Big Island is better than every other option. It is that the Big Island can serve a different role in a broader Hawaiʻi strategy. That is especially true when you underwrite by submarket and stay realistic about scale, renter depth, and exit demand.

What to Watch Before You Buy

Before you add a Big Island apartment to your portfolio, keep these points in focus:

• Compare county and submarket numbers separately
• Treat Kailua Kona and Hilo as different apartment stories
• Underwrite to current income, not aggressive rent growth
• Pay attention to localized renter demand
• Consider how a lower basis changes your overall portfolio mix
• Think through your likely buyer pool at resale

Why Specialized Underwriting Helps

A market like this rewards specificity. If you are comparing a Kailua Kona apartment opportunity against an Oʻahu or Maui asset, broad comp talk is not enough.

You need to look at basis, rent profile, density, local demand depth, and how each property complements the rest of your holdings. That is where underwriting-led analysis becomes more useful than headline-level market comparisons.

If you are considering how a Big Island apartment might fit into your Hawaiʻi portfolio, or weighing a sale, exchange, or acquisition strategy, Christina Dwight brings a Hawaii apartment-specialist perspective grounded in current-market underwriting and multifamily transaction experience.

FAQs

Is the Big Island cheaper than Oʻahu or Maui for apartments?

• Yes. Census data in the research shows Hawaii County has lower median gross rent and lower median owner-occupied value than both Honolulu County and Maui County.

Are Kailua Kona and Hilo the same apartment market?

• No. The research shows higher median rent and home values on the Kona side, while Hilo has a larger population and lower rent and value levels.

Why does Kailua Kona matter in a Big Island portfolio discussion?

• Kailua Kona helps show that the Big Island is not one uniform apartment market and that Kona-side pricing and rent levels differ from Hilo.

Is Big Island apartment investing mainly a growth play?

• The current statewide rent data supports a steadier income outlook more than a sharp rent-growth thesis.

Why compare the Big Island with Maui in this analysis?

• Maui provides a useful contrast because recent post-fire housing conditions have created a more unusual rent and temporary-housing environment than a normal-cycle Big Island asset.

What is the biggest underwriting mistake with Big Island apartments?

• Treating the entire island as one market instead of analyzing localized demand, tenant base, and exit conditions by submarket.