Omega is a city in Tift and Colquitt counties in the U.S. state of Georgia. The population was 1,318 in 2020. Omega was originally called Surr…Omega is a city in Tift and Colquitt counties in the U.S. state of Georgia. The population was 1,318 in 2020. Omega was originally called Surrey, and under the latter name was founded ca. 1889 when the railroad was extended to that point.