^"Congressional Plan--SC14-1905 (Ordered by The Florida Supreme Court, 2-December-2015)" (PDF). Florida Senate Committee on Reapportionment. Retrieved January 11, 2017.
^"Congressional Districts Relationship Files (State-based)". U.S. Census Bureau. Archived from the original on April 2, 2013.
^ a b"My Congressional District".
^"2022 Cook PVI: District Map and List". Cook Political Report. Retrieved January 10, 2023.
^
See whole Florida state map for 2013, with the 9th district covering
Osceola County and Orange and Polk County:
h9047_35x42L.pdf
Congressional Plan: H000C9047. Chapter No. 2012-2, Laws of Florida.
www.flsenate.gov. February 16, 2012.
^
See the 2013 boundaries of the 9th district covering
Osceola County and northeastern
Polk County in the 2013 districts map:
H000C9047_map_sw.pdf,
for the southwest region of Florida, along the Gulf of Mexico, from
Pasco County to Collier County, Florida.
Congressional Plan: H000C9047. Chapter No. 2012-2, Laws of Florida.
www.flsenate.gov. February 2012.
^ a b"Florida Election Watch - Home Page". floridaelectionwatch.gov.
Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
Congressional Biographical Directory of the United States 1774–present