Antimony, UT has a population of 112 and is the 26,616th largest city in the United States. The population density is 11 per sq mi which is 66% lower than the Utah average and 87% lower than the national average. The median age in Antimony is 58 which is approximately 90% higher than the Utah average of 30. In Antimony, 80% of the population over 15 years of age are married, 92% speak English and 6% speak Spanish. 60% of Antimony residents were born in Utah, 40% were born out of state, 0% were born outside of the United States and 0% were foreign born.