Hawaiʻi TMK directory
383,945 tax map keys · all four counties · 2026-07-18 parcel fabric
Every parcel in Hawaiʻi has a nine-digit Tax Map Key. This directory gives each one a page: the decoded key, the county that holds its record, its mapped area and assessed value where the county publishes them, and the fastest path to the record itself. Have a TMK in any format? Its page lives at kilo.land/tmk/<your-tmk> — dashes, colons, or plain digits all resolve.
The full anatomy, CPR numbers, and where to find yours: What is a TMK? →
Browse by county
What a KILO read answers here
The directory entry on any parcel page is the public record's surface. A KILO read is the layer underneath — the parcel-level answers a project actually turns on:
- Zoning & entitlement — county zoning, state land-use district, and whether the intended use is by-right or discretionary.
- Flood — FEMA flood zone and base-flood elevation posture — including the June 2026 Oʻahu FIRM update.
- Wastewater — cesspool / septic / sewer status and the HAR §11-62 and Act 125 rules that apply.
- Shoreline & sea level — shoreline setback and the State SLR-XA exposure ladder.
- Contamination — DOH HEER and EPA facility context near the parcel.
- Cultural resources — the parcel's HRS §6E review pathway and documented cultural-resource context, with the reasoning shown.
$299/parcel · Pay-as-you-go · no subscription — or a plan if you underwrite regularly. Sign-in required; each read runs fresh against the live public record.
Questions people ask
What is a TMK number in Hawaiʻi?
The Tax Map Key — the state's parcel identifier. Nine digits: island (1 Oʻahu, 2 Maui County, 3 Hawaiʻi Island, 4 Kauaʻi County), zone, section, three-digit plat, three-digit parcel. Example: (1) 2-3-016:044, or 123016044 with no separators.
How do I look up a Hawaiʻi TMK?
Enter it in any written form — (1) 2-3-016:044, 1-2-3-16-44, or 123016044 — and this directory resolves it to the parcel's page: island, county, mapped area, assessed value where the county publishes it, and the county record links. Owner and tax history live on each county's real-property site, linked from every page.
Does the directory rate or rank parcels?
No. Directory pages restate the public record — location, tax-map arithmetic, county links. KILO's actual read (zoning, flood, wastewater, shoreline, contamination, and the HRS §6E pathway) runs privately, per parcel, for the person who requests it, and only on parcels they bring.