The 1880 census gives us information about a person's family, their locations, age, birth place, and many other things.
1880 Morttality Schedule
The 1880 Mortality Schedule can help you find people that died the year before the census. Sometimes the birthplace of the person as well as that of their parents can be found. Usually the reason the person died is also give and the month they died.
Below are some fun facts about what you might find in the 1880 censuses, which states had censuses taken, and the length of time the census taker had to take the census.