Holy Cross, Wisconsin Unincorporated community Holy Cross, Wisconsin Show map of Wisconsin Holy Cross, Wisconsin Show map of the US Coordinates: 43°28′13″N 87°53′44″W﻿ / ﻿43.47028°N 87.89556°W﻿ / 43.47028; -87.89556Coordinates: 43°28′13″N 87°53′44″W﻿ / ﻿43.47028°N 87.89556°W﻿ / 43.47028; -87.89556 Country United States State Wisconsin County Ozaukee Elevation 774 ft (236 m) Time zone Central (CST) (UTC-6) • Summer (DST) CDT (UTC-5) Area code(s) 262 GNIS feature ID 1566584[1]