Refers to the general area near the speaker or a reference point.
Where is the best ramen shop around here?
around this point; about now
Used for an approximate time or stage in a process, often in expressions like ここらで (at this point) or ここら辺 (around this time).
Let's take a break around now.
Let's take a break around this point.
This whole area used to be rice fields.
この辺 is the more common, slightly more formal way to say 'around here', while ここら is a colloquial pronoun with the same meaning.
ここ points to a specific, exact spot, whereas ここら vaguely refers to the general area around that spot.
辺り is a neutral noun meaning 'vicinity' that can combine with many words, while ここら is a fixed colloquial pronoun for 'around here'.
Applies to each form listed below
Rare kanji form; not commonly used.
Rare kanji form; not commonly used.
Rare kanji form; not commonly used.
Derived from ここ (here) with the suffix ら indicating a vague area or approximate range.