The countries with the most regions

The most

Russia has 83, its federal subjects.^[1] Türkiye has 81 provinces and Thailand 77, counting Bangkok.^[1] Russia is a federation; Türkiye and Thailand are not, so their many provinces answer to the national government.^[2]

The United States, with 51, counts its 50 states and Washington, D.C.^[1] Vietnam is a recent change: in June 2025 its National Assembly merged 63 provinces and cities into 34.^[3] The quiz has the new 34.^[1]

#	Country	Regions
1	Russia	83
2	Türkiye	81
3	Thailand	77
4	Algeria	58
5	United States	51
6	Japan	47
7	Kenya	47
8	Romania	42
9	Indonesia	38
10	Nigeria	37
11	India	36
12	Afghanistan	34
13	Vietnam	34
14	Colombia	33
15	Dominican Republic	32

The most people per region

Divide each country's population by its regions and China comes first, with 45.4 million people in the average one, more than live in most countries.^[1][4] India is next, at 40.7 million per state or union territory.^[1][4] Uganda makes the top five because GeoNames counts just four regions as its first level.^[1]

Russia, with the most regions, has only 1.7 million people in the average one.^[1][4]

#	Country	Regions	People per region
1	China	31	45.4 million
2	India	36	40.7 million
3	Pakistan	7	36.5 million
4	Bangladesh	8	22.0 million
5	Uganda	4	12.8 million
6	Ethiopia	14	9.7 million
7	Brazil	27	7.9 million
8	Indonesia	38	7.5 million
9	South Africa	9	7.2 million
10	Philippines	17	6.9 million

The fewest

Three countries in the quiz have four regions or fewer: Eswatini (4), Ireland (4) and Uganda (4).^[1] For some, GeoNames lists an older or broader layer as the first level: Ireland's four provinces rather than its counties, for one.^[1]