Estelline is a town located in Hall County, Texas, United States. The population at the 2020 census was 121. In 2012, Estelline was ranked #1 in a National Motorists Association listing of its "Worst Speed Trap Cities" in North America. Estelline often refers to itself as the "Town of Estelline", with a "Town Hall" and a "Town Council", rather than the customary "city" label. However, under Texas law, all incorporated municipalities are considered to be cities.