Tasmania is the smallest Australian state, with a population of 557,571 as of the 2021 Australian census and an area of 68,401 square kilometres (26,410 sq mi). Official population statistics are published by the Australian Bureau of Statistics (ABS), which conducts a census every five years, the most recent for which data is released being the 2021 census. The ABS publishes data for various types of geographic structures, including significant urban areas, which represent towns and cities with a population of 10,000 or higher, urban centres and localities, which represent the built-up area of cities and towns with more than 200 people, and local government areas.

Statistical Areas Level 2 (SA2s) are areas that subdivide all of Australia and generally have a population between 3,000 and 25,000 people, with an average of 10,000. Significant urban areas (SUAs) are defined by the Australian Bureau of Statistics as clusters of urban SA2s, and are designed to represent towns and cities with a population of 10,000 or more.

The largest SUA within Tasmania is Hobart, with a population of 226,653 at the 2021 census. There are a total of five SUAs in Tasmania as of 2021.

List of significant urban areas by population

Rank	Significant urban area	Population
		2011 census	Ref.	2016 census	Ref.	2021 census	Ref.
1	Hobart	200,501		204,010		226,653
2	Launceston	82,220		84,153		90,953
3	Devonport	29,051		29,381		31,721
4	Burnie – Somerset	26,869		26,490		27,826
5	Ulverstone	14,109		14,151		15,086

Statistical Areas Level 1 (SA1s) are areas that subdivide all of Australia and generally have a population between 200 and 800 people, but this can reach as low as 180 for small towns. Urban centres and localities (UCLs) are defined by the Australian Bureau of Statistics as clusters of urban SA1s. Clusters with a population higher than 1,000 are considered urban centres and clusters with a population between 200 and 999 are considered localities. The population of a locality is allowed to fall below 200 for two consecutive censuses before it is declassified as a locality.

The largest UCL within Tasmania is Hobart, with a population of 197,451 at the 2021 census, making Tasmania Australia's least centralised state. There are a total of 94 UCLs in Tasmania as of 2021, of which 37 have a population above 1,000.

List of urban centres and localities by population

Rank	Urban centre or locality	Population
		2011 census	Ref.	2016 census	Ref.	2021 census	Ref.
1	Hobart	170,975		178,009		197,451
2	Launceston	74,085		75,329		80,943
3	Devonport	22,770		23,046		24,591
4	Burnie – Somerset	19,819		19,385		20,267
5	Ulverstone	12,110		12,032		12,723
6	New Norfolk	5,543		5,834		6,153
7	Wynyard	5,061		5,168		5,387
8	Dodges Ferry – Lewisham	4,445		4,621		5,219
9	Latrobe	3,354		3,474		4,456
10	George Town	4,304		4,257		4,408
11	Legana	2,915		3,243		4,252
12	Port Sorell	2,853		3,358		3,869
13	Longford	3,053		3,347		3,711
14	Midway Point	2,598		2,859		3,384
15	Penguin	3,159		3,138		3,330
16	Smithton	3,240		3,275		3,282
17	Perth	2,411		2,623		3,233
18	Sorell	2,110		2,540		3,180
19	Deloraine	2,333		2,432		2,631
20	Margate	2,107		2,302		2,572
21	Hadspen	2,062		2,216		2,337
22	Huonville	1,741		1,840		2,071
23	Scottsdale	1,899		1,905		1,979
24	Snug	764		1,560		1,843
25	Queenstown	1,975		1,755		1,772
26	Westbury	1,476		1,473		1,666
27	St Helens	1,498		1,449		1,573
28	Bridport	1,248		1,266		1,371
29	Beauty Point	1,205		1,171		1,231
30	Primrose Sands	934		1,050		1,209
31	Sheffield	1,108		1,127		1,195
32	Beaconsfield	1,008		1,054		1,093
33	Exeter	389		387		1,092
34	Evandale	1,086		1,124		1,058
35	Ranelagh	687		874		1,058
36	Cygnet	844		929		1,057
37	Grindelwald	828		965		1,037
38	Richmond	887		858		934
39	Railton	883		835		887
40	Campbell Town	781		834		823
41	Bicheno	647		740		797
42	Fern Tree	667		726		763
43	Rosebery	922		708		749
44	Stieglitz	643		693		724
45	Triabunna	766		749		722
46	Howden	658		676		717
47	Swansea	597		645		711
48	Zeehan	728		698		702
49	South Arm	576		612		691
50	Cressy	676		669		668
51	Currie	687		665		659
52	Geeveston	631		616		658
53	Gravelly Beach	561		567		641
54	Scamander	543		515		639
55	Strahan	660		658		634
56	Sulphur Creek	503		561		631
57	Orford	518		537		623
58	Clifton Beach	555		588		618
59	Campania	284		395		608
60	Electrona	474		538		601
61	Cremorne	461		507		577
62	Oatlands	552		544		562
63	Dover	441		486		521
64	Low Head	440		472		507
65	Stanley	481		476		504
66	Carrick	450		432		503
67	Bagdad	406		465		501
68	St Marys	511		465		494
69	Sisters Beach	439		391		481
70	Hillwood	440		429		454
71	Franklin	326		337		444
72	Kettering	308		356		408
73	Ridgley	382		389		401
74	Forth	378		368		398
75	Bracknell	375		367		392
76	Eaglehawk Neck	338		356		391
77	Opossum Bay	328		329		383
78	Bothwell	391		356		379
79	Kempton	353		344		371
80	Nubeena	274		290		362
81	Fingal	366		336		350
82	Heybridge	307		314		339
83	Dilston	307		291		316
84	Lilydale	274		277		307
85	White Beach	286		271		305
86	Dunalley	274		272		304
87	Swan Point	278		282		300
88	Ross	271		276		291
89	Gawler	250		252		277
90	Binalong Bay	210		208		247
91	Waratah	248		219		235
92	Mole Creek	230		188		216
93	Tullah	192		159		196
94	Collinsvale	249		263		186

Tasmania is divided into 29 local government areas. The current boundaries were set by the Local Government Act 1993, with only minor changes since then. The Australian Bureau of Statistics uses an approximation of these boundaries for its statistics. The largest local government area within Tasmania is the City of Launceston, with a population of 70,055 as of the 2021 census.

List of local government areas by population

Rank	Local government area	Population
		2011 census	Ref.	2016 census	Ref.	2021 census	Ref.
1	City of Launceston	64,193		65,274		70,055
2	City of Clarence	51,852		54,819		61,531
3	City of Hobart	48,703		50,439		55,077
4	City of Glenorchy	44,656		46,253		50,411
5	Kingborough Council	33,893		35,853		40,082
6	City of Devonport	24,615		24,696		26,150
7	West Tamar Council	21,817		22,718		25,145
8	Central Coast Council	21,355		21,362		22,760
9	Meander Valley Council	18,888		19,282		20,709
10	City of Burnie	19,329		18,895		19,918
11	Brighton Council	15,460		16,512		18,995
12	Huon Valley Council	15,140		16,199		18,259
13	Sorell Council	13,194		14,414		16,734
14	Waratah–Wynyard Council	13,708		13,578		14,300
15	Northern Midlands Council	12,228		12,822		13,745
16	Latrobe Council	9,833		10,699		12,420
17	Derwent Valley Council	9,704		10,021		10,942
18	Circular Head Council	7,977		7,926		8,117
19	George Town Council	6,636		6,764		7,033
20	Dorset Council	6,827		6,617		6,829
21	Break O'Day Council	6,194		6,104		6,770
22	Southern Midlands Council	6,049		6,043		6,662
23	Kentish Council	6,086		6,128		6,603
24	Glamorgan–Spring Bay Council	4,190		4,400		5,012
25	West Coast Council	4,678		4,149		4,263
26	Tasman Council	2,355		2,372		2,593
27	Central Highlands Council	2,262		2,141		2,520
28	King Island Council	1,566		1,585		1,617
29	Flinders Council	776		906		922

• List of cities in Australia by population
• List of places in New South Wales by population
• List of places in the Northern Territory by population
• List of places in Queensland by population
• List of places in South Australia by population
• List of places in Victoria by population
• List of places in Western Australia by population