|ISO3166-1 Codes||UM, UMI, 5811|
“Discovered by the US early in the 19th century, the uninhabited atoll was officially claimed by the US in 1857. Both US and British companies mined for guano deposits until about 1890. In 1935, a short-lived attempt at colonization began on this island, similar to the effort on nearby Baker Island, but was disrupted by World War II and thereafter abandoned. The famed American aviatrix Amelia EARHART disappeared while seeking out Howland Island as a refueling stop during her 1937 round-the-world flight; Earhart Light, a day beacon near the middle of the west coast, was named in her memory. [...] Managed by the Fish and Wildlife Service of the US Department of the Interior.”
CIA's The World Factbook (2013)5
As a territory of the USA I do not have many specific statistics for this territory in its own right.
There isn't much information in the database for Howland Island, most likely because it is either a part of another country (i.e., a territory or possession) and therefore most international statistics are counted for the country as a whole, or, this is such an exotic place that little data exists about it.