Jacksonville is 885 square miles.
918 square miles of total area.
918 sq miles (2,378 km²).
Yes it is about 2.5 times as large as Duval County.
Hillsborough County, Florida, USA - 1,266 square miles.
Putnam County, Florida has a total area of 827 square miles.
The Englewood in Sarasota County is only 29.48 miles however a second Englewood exists in Duval County that is 254.79 miles away.
The closest of Florida's two Englewoods is about 88 miles while the one in Duval County near Jacksonville is about 200 miles from Tampa.
Which Duval?
One Englewood is is Sarasota County near Ft. Myers and is 37.36 miles and a second Englewood Florida is located near Jacksonville which is in Duval County which is 254.68 miles.
The largest county in Florida by area is Palm Beach County, at 2,578 square miles.
Miami-Dade County, Florida is Florida's third largest county in terms of land area, with 1,946 square miles.
Orange County, California, USA - 948 square miles.
Palm Beach County is the largest county in Florida and, according the U.S. Census Bureau, measures 2,386 square miles (6,181 km²).