Each edition grades its towns against each other only.
More historic than 13% of U.S. towns. What drives it
Most of Eden Roc was built recently: 2% of its homes predate 1940 and the median home dates from 2006. Below: maps from 1922 on.
More historic than 13% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Eden Roc is more historic than 13% of U.S. towns. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
Few Hawaii towns list much on the Register (a typical Hawaii town has 0.0 per 10,000 residents, the U.S. 2.4), so Eden Roc’s 0.0 sits below most of its state (28% of Hawaii towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how Eden Roc’s history is told.
Every edition of the U.S. Geological Survey’s map of Eden Roc. Tap a year, or press play to watch the town change.
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Eden Roc.
Wikipedia doesn’t have a history of Eden Roc yet. The photos, dates and memories neighbors add here are how it gets written.
Eden Roc is a census-designated place (CDP) in Hawaiʻi County, Hawaiʻi, United States, located in the District of Puna. As of the 2020 census, Eden Roc had a population of 1,386.
Between the 2010 and 2020 censuses its population grew from 942 to 1,386 (+47%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Nobody well known was born in Eden Roc itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
Eden Roc is more historic than 13% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
2% of Eden Roc’s homes were built before 1940 (Census estimate, ±3.9 points), against a typical 1.7% for a Hawaii town; the median home was built in 2006.
What the archives can’t tell you, neighbors can.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From U.S. Geological Survey historical maps and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
