definition of "lower Puna"

[Durian Fiend]

Description I've heard is:

Parts of Puna accessible via highway 11 = lower Puna.

Parts of Puna accessible via highway 130 = upper Puna.

Outlier is Orchidland Estates because it can be accessed by both.

I trust you meant the other way around, 11 being upper and 130 being lower Puna. But that is rather different from dobanian's suggestion that lower Puna starts after Pahoa, this still then belonging to upper Puna, so it sounds like there's no consensus on this so far. And kalakoa, I'm not sure what you mean by D4/D5, please explain.

What do people who live in Pahoa, and e.g., HPP, think--are you in upper Puna, or lower Puna?

He wrote it correctly and somehow you swapped them in your quote.
Accessing Orchidland from 11 is kind of a PITA for person doing it and also other motorists getting stuck behind a left hand turner below Kurtistown.