As of the of 2010 census, there were 2,602 people. As of 2015 and 2016 Colorado Demography office reports there is a household population of 2,577. Average household size is 2.12 and total housing units was 1,216. With a vacancy rate of 27.62.
The median income for a household in the city was $36,714, and the median income for a family was $44,444. Males had a median income of $28,125 versus $23,512 for females. The per capita income for the city was $20,607. About 9.1% of families and 13.3% of the population were below the poverty line, including 18.5% of those under age 18 and 7.5% of those ages 65 or over.
Take a look at the Leadville Community Profile from the State demography office.