New Windsor Post Office USGS New Windsor Quad, Illinois, Topographic Map

New Windsor Post Office is a Post Office in the state of Illinois (county of Mercer), located at latitude - longitude coordinates (also known as lat-long or GPS coordinates) of N 41.20226 and W -90.44069. New Windsor Post Office is shown in the center of the topographic (topo) map, which is sourced from the United States Geographical Survey map USGS New Windsor quad. The nearest major town is New Windsor, IL.