Hawaii County

Hawaii County sits at a gross rent-to-price ratio of 5.35%, which translates to a 3.48% cap rate on a standard underwrite. At a $574,749 median purchase price and $2,562 median monthly rent, this market leans heavily toward appreciation over cash flow. The numbers make that plain: financing at 6.85% on an 80% LTV loan produces a $3,013 monthly mortgage, and once you layer in $897 of estimated operating expenses, the modeled cash flow is negative $1,347 per month, a cash-on-cash return of -12.23%. That is not a rounding error or a worst-case scenario; it is the baseline. Hawaii County scores 50 out of 100 on cash flow and 69 on appreciation, which is the clearest possible signal about where the investment thesis has to live.

This market suits one profile almost exclusively: the long-horizon appreciation buyer who can absorb negative carry and is betting on continued price growth on the Big Island. Year-over-year home price growth of 1.85% is positive but modest, not the kind of number that justifies a -12.23% cash-on-cash return on its own. An investor here needs to believe in the structural scarcity argument: Hawaii County is geographically finite, and constrained supply over a long hold can drive appreciation that the income statement alone cannot justify. The affordability index of 19 out of 100 is a real constraint on that thesis, because at some point a thin buyer pool limits price appreciation. Cash-flow operators and value-add investors looking for near-term income should look elsewhere; the math does not bend far enough to make those strategies work at this price point and rate environment.

The tax and insurance picture is one of the few genuine tailwinds in this market. Hawaii's state-average effective property tax rate of 0.28% is very low, producing an estimated annual tax bill of $1,609 on a $574,749 asset. Combined with $805 in estimated annual insurance, the monthly tax-and-insurance burden is $201. For context, that figure would be three to five times higher on a similar-priced asset in a high-tax state. That $201 combined carry cost is a meaningful relief valve on the expense side, and investors underwriting Hawaii County should give it appropriate credit. Keep in mind this is a state-average estimate and your specific county or district rate may differ.

Compared to its neighbors, Hawaii County is the relative value play within a uniformly expensive state. Honolulu County carries a $833,725 median price against $2,791 median rent, a rent-to-price ratio of 4.02% and an overall score of 36. Kauai County is even more stretched, at $996,888 median price, a 4.32% rent-to-price ratio, and an overall score of 34. Hawaii County's 5.35% rent-to-price ratio and overall score of 48 are meaningfully better than both neighbors across every dimension. An investor who has already decided they want Hawaii exposure, for lifestyle optionality, estate planning, or a genuine long-term scarcity bet, should choose Hawaii County over Honolulu or Kauai specifically because the entry price is lower, the income coverage ratio is less punishing, and the overall investment score is higher. The Big Island is not cheap; it is just less expensive than the alternatives within the state.

The primary risk here is concentration and demand depth. With a population of 202,163 and an affordability index of 19, the renter pool capable of paying $2,562 per month is not deep. Hawaii County ranks in the 19th percentile nationally and 634th out of 1,000 counties, which reflects that narrow investable case. If interest rates stay elevated and appreciation stalls, the negative carry compounds year over year with no income offset. Any investor entering this market should stress-test the hold period at flat appreciation for three to five years and decide whether the portfolio can sustain that scenario before committing capital.