The population of Olympia, Washington, was 55,605 in the 2020 Census, with estimates suggesting around 56,000+ for 2024, while the municipality of Olympia, Greece, had a population of 11,153 in 2021. 55,605 Estimated Population (2024): 56,271 Metropolitan Area: The Olympia metropolitan area (including nearby cities) has a population of approximately 298,758. Olympia, Greece