At its founding, the Kingdom of Buganda had only a small territory consisting of the counties of Busiro, Busujju, Kyaddondo and Mawokota; as well as small portions of Ssingo and Bulemeezi counties.

Most of the surrounding territory was the dominion of the kings of Bunyoro. There was considerable rivalry between Buganda and neighbors, and constant fighting over territory expansion.

Gradually, Buganda was able to expand its territory at the expense of its neighbors until it grew to twenty counties that constituted Buganda at its pinnacle. However, as we speak now, the Kingdom consists of 18 counties after losing Buyaga and Bugangazzi

The islands of Ssese were autonomous within Buganda right from its founding, being reserved as the Islands of the gods. They were not directly governed by the Kings of Buganda until after the 1900 agreement.

Below are the counties of Buganda.

	Buddu Buddu was annexed to Buganda from Bunyoro by Ssekabaka Jjunju. Chief's Title: Ppookino Current Chief: Oweek. Jude Muleke Headquarters: Masaka
	Bugerere Bugerere was annexed to Buganda from Bunyoro by Semei Kakungulu. Chief's Title: Mugerere Current Chief: Oweek. James Ssempigga Headquarters: Ntenjeru
	Bulemeezi Some parts of Bulemeezi were part of the original territory of Buganda while others were annexed to Buganda from Bunyoro. Chief's Title: Kangaawo Current Chief: Oweek. Ronald Mulondo Headquarters: Bbowa
	Buluuli Buluuli was annexed to Buganda from Bunyoro during the 1900 agreement. Chief's Title: Kimbugwe Current Chief: Oweek. Gerald Kyanjo Headquarters: Nakasongola
	Busiro Busiro is one of the original territories of Buganda. Chief's Title: Ssebwana Current Chief: Oweek. Charles Kiberu Kisiiriiza Headquarters: Ssentema
	Busujju Busujju is also one of the original territories of Buganda. Chief's Title: Kasujju Current Chief: Oweek. Mark Jjingo Kaberenge II Headquarters: Mwera
	Butambala Butambala was annexed to Buganda from Bunyoro by Ssekabaka Kateregga. Chief's Title: Katambala Current Chief: Oweek. Haji Sulaiman Magala Headquarters: Kabasanda
	Buvuma Buvuma is an Island I Lake Victoria. It was annexed to Buganda from Bunyoro by Ssekabaka Mwanga II. Chief's Title: Mbuubi Current Chief: Oweek. Michael Mboowa Wamala Headquarters: Maggyo
	Buweekula Buweekula was annexed to Buganda from Bunyoro by Ssekabaka Kamaanya. Chief's Title: Luweekiula Current Chief: Oweek. Immaculate Nantaayi Kafeero Headquarters: Kaweeri
	Gomba Gomba was annexed to Buganda from Bunyoro by Kateregga. Chief's Title: Kitunzi Current Chief: Celesitino Jackson Musisi Headquarters: Kanoni
	Kabula Kabula was annexed to Buganda from Ankole. Chief's Title: Lumaama Current Chief: Oweek. David Luyimbaazi Kiyingi Headquarters: Lyantonde
	Kkooki Kkooki is a tributary chiefdom which was incorporated into Buganda in 1896. Chief's Title: Kamuswaaga Current Chief: Omulangira Apollo Ssansa Kabumbuli II Headquarters: Rakai
	Kyaddondo Kyaddondo is one of the original territories of Buganda. Chief's Title: Kaggo Current Chief: Oweek. Agnes Nakibirige Ssempa Headquarters: Kasangati
	Kyaggwe Kyaggwe was annexed by Ssekabaka Kimera. Chief's Title: Ssekiboobo Current Chief: Oweek. Elijah Boogere Headquarters: Mukono
	Mawogola Mawogola was mostly curved out of Buddu by the 1900 Agreement. Chief's Title: Muteesa Current Chief: Oweek. Muhammad Sserwadda. Headquarters: Ssembabule
	Mawokota It’s one of the original territories of Buganda. Chief's Title: Kayima Current Chief: Oweek. Gabriel Kabonge Headquarters: Butoolo
	Ssese Ssese is an Island in Lake Victoria. It was originally autonomous to Buganda and only became a county during the 1900 Agreement. It was known as the Island of the gods. Chief's Title: Kweba Current Chief: Oweek. Augustine Kasirye. Headquarters: Kalangala
	Ssingo Most parts of Ssingo were originally part of Buganda but the rest was annexed from Bunyoro Chief's Title: Mukwenda Current Chief: Oweek. David Nantaggya. Headquarters: Mityana