If $5,000 is the median, that means the majority have zero.
It also says “working age couple”, which could include even those in their low 20s, so may not be a good indicator of “typical”.
No. The "median" is the score that represents 50% of the population being measured. It means that 50% of the couples have more than 5000.00, 50% have less than 5000.00. While some couples have zero, they cannot possibly be the majority.