Someone asked for this I don't remember who, but if you're out there,
here it is:

Looking at the 21 airports in New Jersey that sell 100LL, the prices
range from $3.55/Gal. (Central Jersey Regional Airport - 47N) to
$7.22/Gal. (Teterboro Airport - KTEB). The average is $4.78/Gal.,
although the individual prices run the gambit between the two extremes.

Hope this helps.

AJ