Las Vegas cost of living score 78.5 Less expensive 21.5% lower than the US average 11.2% lower than the New Mexico average Las Vegas (zip 87701), New Mexico gets a BestPlaces Cost of Living score of 78.5, which means the total cost of housing, food, childcare, transportation, healthcare, taxes, and other necessities is 21.5% lower than the U.S. average and 11.2% higher than the average for New Mexico.