A 21st Avenue South is found in the neighborhood(s) listed below.
/MN/Hennepin_County/Minneapolis_City/Corcoran.html">Corcoran Minneapolis City, MN City residential neighborhood.
/MS/Forrest_County/Hattiesburg_City/Parkhaven_Historic_District.html">Parkhaven Hist Dist Hattiesburg City, MS Local Historic District, National Register Historic District.