Josephine is a city in Collin and Hunt counties in the U.S. state of Texas. Its population was 812 at the 2010 census, with 755 residents in Colliā¦Josephine is a city in Collin and Hunt counties in the U.S. state of Texas. Its population was 812 at the 2010 census, with 755 residents in Collin County and 57 in Hunt County. By 2020, its population increased to 2,119.