Mays Chapel cost of living score 104.5 More expensive 4.5% higher than the US average 6.5% lower than the Maryland average Mays Chapel (zip 21093), Maryland gets a BestPlaces Cost of Living score of 104.5, which means the total cost of housing, food, childcare, transportation, healthcare, taxes, and other necessities is 4.5% higher than the U.S. average and 6.5% higher than the average for Maryland.