Tacoma cost of living score 122.7 More expensive 22.7% higher than the US average 0.7% higher than the Washington average Tacoma, Washington gets a BestPlaces Cost of Living score of 122.7, which means the total cost of housing, food, childcare, transportation, healthcare, taxes, and other necessities is 22.7% higher than the U.S. average and 0.7% lower than the average for Washington.