This is the 269th most frequent Japanese word.
県内
"Within the prefecture."
In this sentence, "県内" refers to locations or areas situated within the specified prefecture.
私は県内の観光地を訪れました。
I visited tourist spots within the prefecture.
Here, "県内" specifies the group of mayors in the context of the prefecture they are part of.
この会議は県内の全ての市長が参加します。
This meeting will be attended by all mayors within the prefecture.
In this instance, "県内" relates to the geographical area of the prefecture for which the weather forecast is reported.