How much does it cost

As of 9/2017: Individual (Any person age 13-24) $38/month with no joining fee Individual (Any person age 25-64) $53/month with $49 joining fee Two Person Household (Any two people, at least one age 18 or older, residing at the same address.) $78/month with $49 joining fee Senior Adult (Any person age 65 and older) $47/month with $29 joining fee Family (Up to four adults plus all dependent children age 24 and under residing at the same address.) $91/month with $49 joining fee Senior Family (Two adults, at least one age 65 or older, and all dependent children age 24 and under, residing at the same address.) $72/month with $29 joining fee Sometimes they run specials where they waive the joining fee or make it a dollar instead of the standard rate. They are waiving the fee right now, I believe for the month of September.

lots of organizations get discounts though. AAA, Johns Hopkins, etc... you're probably eligible for some discounts.

I pay $89 for a family of four.

Depends on single around 35. Per month up to 75 per family .