County · code 15001
Hawaii CountyHawaii
Hawaii County is located in Hawaii and is seated in Hilo. The county was established on April 13, 1905, from East Hawaii and West Hawaii.
- Founded1905
- County seatHilo
- Named forHawaii
- Land area4,028 sq mi + 1,058 sq mi water
- Population200,629 2020 Census
- Parcels mapped135,718 checked 14 October 2026
Where it is
Hawaii on the map of Hawaii
Hawaii has 5 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1905 from East Hawaii County and West Hawaii County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Hawaii County was created on April 13, 1905, by the Territory of Hawaii from East Hawaii and West Hawaii, along with all other islands within three nautical miles of their shores.
- 1905Hawaii County created Hawaii created by the Territory of Hawaii from East Hawaii (extinct), West Hawaii (extinct), all other islands lying within three nautical miles of the shores thereof, and the waters adjacent thereto; East Hawaii, and West Hawaii eliminated.from East Hawaiifrom West Hawaii· Hawaii Terr. Laws 1905, reg. sess., act 39, ch. 1/p. 45
Land and parcels
What the maps cover in Hawaii
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 135,718 parcels from Hawaii County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 14 October 2026 -
Address points Missing
No public address points layer found for Hawaii County yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Hawaii by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Hawaii County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Hawaii County.
See your own lot on these maps
Open Hawaii County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Hawaii County
- When was Hawaii County founded?
- Hawaii County was founded in 1905, formed from East Hawaii County and West Hawaii County, and named after Hawaii.
- What is the county seat of Hawaii County?
- The county seat of Hawaii County is Hilo.
- Is there an online parcel map for Hawaii County?
- Yes. Hawaii County publishes a parcel map of 135,718 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Hawaii County's boundary or name changed?
- Hawaii County was created in 1905 from East Hawaii County and West Hawaii County. The Atlas of Historical County Boundaries records no boundary change since.
- Is my lot in a flood zone?
- We do not have flood maps for Hawaii County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.