Markco is a boy name. It last appeared in U.S. Social Security records in 1973. Markco first appears in the data in 1973 and reached its peak in 1973 (6 births). The chart below shows how the name has risen and fallen over time.
How popular is Markco? (U.S. births per year)
U.S. births per year, 1973–1973 · hover or tap for the count and national rank · source: U.S. Social Security Administration