How realistic is it for middle-income earners to live comfortably in one of the world’s most expensive cities, Singapore? Middle gross monthly income in Singapore: 2014: $3,770 2015: $3,949 2016: $4,056 2017: $4,243 2018: $4,437 2019: $4,563 2020: $4,534 2021: $4,680 2022: $5,070 2023: $5,197 2024: $5,500