Yao's 2026 population is now estimated at 264,424. In 1995, the population of Yao was 276,664. Yao experienced a decrease of -36 residents over the past year, marking an annual decline of -0.01%. These population values and projections come from Japan city census series 1995 to 2005 via CityPopulation fallback access, Japan 2010 Census municipal population Table 1 (e-Stat official CSV), Japan 2015 Census municipal population Table 1 (e-Stat official CSV), Japan 2020 Census municipal population Table 1-3 (e-Stat official download) and World Population Review Internal Projections .