Zero is a ghost town[2] and former unincorporated community in Lucas County, in the U.S. state of Iowa.

Zero was platted in 1883 as a mining community, with the townsite being divided into five streets and 61 lots.

In 1978, the Lucas County Genealogical Society wrote, "Only a couple of old wooden buildings and a few foundations remain of the old town [...] Today Zero, Iowa, is losing its contest with time.

The few buildings that remain have deteriorated past the point of ugliness and have achieved a weathered beauty of their own.

The lovely countryside is closing in on the once proud house and sagging barn, and the shingle roofs no longer hold back the rain.