Template:Wp-Carbon, Iowa

the text in this section is copied from an article in Wikipedia

Carbon is a city in Douglas Township, Adams County, Iowa, United States. The population was 36 at the 2020 census.

Note that other places in Iowa have been named Carbon: there was a Carbon Post Office in Davis County, six miles south of Ottumwa, that operated for less than a year in 1881. There was also a Carbon Post Office in Webster County, three miles south-east of Fort Dodge, that operated from 1870 to 1872. A post office on the latter location was known as Gypsum from 1902 to 1905.