Largest Cities, Town and Communes by Population in Thailand

177 cities, town and communes in Thailand with 20,000 or more inhabitants, ranked by population estimates for December 31, 2019 (by Department of Provincial Administration, Thailand).

RankCity, Town or CommuneNative NamePopulation
1Bangkok (Krung Thep)กรุงเทพมหานคร5,666,264
2Nonthaburiนนทบุรี254,375
3Pak Kretปากเกร็ด190,272
4Hat Yaiหาดใหญ่156,802
5Chaophraya Surasakเจ้าพระยาสุรศักดิ์143,024
6Surat Thaniสุราษฎร์ธานี132,040
7Udon Thaniอุดรธานี130,531
8Chiang Maiเชียงใหม่127,240
9Nakhon Ratchasimaนครราชสีมา126,391
10Bang Puบางปู120,127
11Pattayaเมืองพัทยา119,532
12Khon Kaenขอนแก่น114,459
13Nakhon Si Thammaratนครศรีธรรมราช102,152
14Bang Mueangบางเมือง100,598
15Laem Chabangแหลมฉบัง88,271
16Rangsitรังสิต85,260
17Nong Prueหนองปรือ85,194
18Nakhon Sawanนครสวรรค์82,305
19Phuketภูเก็ต79,308
20Tha Khlongท่าโขลง78,108
21Chiang Raiเชียงราย77,672
22Ubon Ratchathaniอุบลราชธานี74,977
23Nakhon Pathomนครปฐม74,446
24Puchao Saming Phraiปู่เจ้าสมิงพราย73,232
25Lat Luangลัดหลวง71,882
26Map Ta Phutมาบตาพุด70,714
27Ko Samuiเกาะสมุย70,059
28Ban Suanบ้านสวน69,298
29Samut Sakhonสมุทรสาคร67,515
30Phitsanulokพิษณุโลก66,106
31Lam Sam Kaeoลำสามแก้ว66,003
32Hua Hinหัวหิน65,983
33Lat Sawaiลาดสวาย65,906
34Rayongระยอง63,565
35Thanyaburiธัญบุรี62,990
36Khlong Luangคลองหลวง62,615
37Songkhlaสงขลา61,758
38Saraburiสระบุรี60,809
39Yalaยะลา60,617
40Khelang Nakhonเขลางค์นคร59,812
41Trangตรัง59,304
42Khet Udomsakdiเขตรอุดมศักดิ์56,050
43Dan Samrongด่านสำโรง55,488
44Om Noiอ้อมน้อย53,978
45Sakon Nakhonสกลนคร53,100
46Wichitวิชิต52,233
47Lampangลำปาง52,124
48Bang Bua Thongบางบัวทอง51,420
49Maha Sarakhamมหาสารคาม51,276
50Samut Prakanสมุทรปราการ50,843
51Phra Nakhon Si Ayutthayaพระนครศรีอยุธยา50,830
52Ratsadaรัษฎา48,740
53Khuan Langควนลัง48,211
54Nong Khaiหนองคาย47,524
55Saen Sukแสนสุข46,658
56Kho Hongคอหงส์46,441
57Plai Bangปลายบาง45,573
58Pattaniปัตตานี45,004
59Ban Petบ้านเป็ด44,293
60Khu Khotคูคต44,274
61Bang Kruaiบางกรวย44,138
62Khao Rup Changเขารูปช้าง42,942
63Lakhaหลักห้า41,958
64Narathiwatนราธิวาส41,825
65Sisaketศรีสะเกษ41,508
66Su-ngai Kolokสุไหงโก-ลก41,462
67Mae Sotแม่สอด41,424
68Na Paนาป่า40,899
69Singhanakhonสิงหนคร39,545
70Khlong Haeคลองแห39,379
71Sao Thong Hinเสาธงหิน39,315
72Cha-amชะอำ39,286
73Surinสุรินทร์39,025
74Chachoengsaoฉะเชิงเทรา38,902
75Kham Yaiขามใหญ่38,414
76Roi Etร้อยเอ็ด36,225
77Mueang Naเมืองนะ36,156
78Chaiyaphumชัยภูมิ36,067
79Ang Silaอ่างศิลา36,055
80Ratchaburiราชบุรี35,470
81Pak Nam Samut Prakanปากน้ำสมุทรปราการ35,050
82Mukdahanมุกดาหาร34,278
83Suan Luangสวนหลวง34,200
84Pak Chongปากช่อง34,150
85Phra Phutthabatพระพุทธบาท33,717
86Chumphonชุมพร33,654
87Kalasinกาฬสินธุ์33,398
88Phatthalungพัทลุง33,247
89Phawongพะวง33,225
90Sateng Nokสะเตงนอก33,084
91Nong Buaหนองบัว33,058
92Bang Si Mueangบางศรีเมือง32,880
93Rai Khingไร่ขิง32,819
94Bueng Yithoบึงยี่โถ32,708
95Krabiกระบี่32,644
96Uttaraditอุตรดิตถ์32,198
97Sanan Rakสนั่นรักษ์31,350
98Chum Phaeชุมแพ31,141
99Ban Changบ้านฉาง30,983
100Kathuกะทู้30,797
101Aranyikอรัญญิก30,508
102Samrong Nueaสำโรงเหนือ30,498
103Mueang Kaoเมืองเก่า30,496
104Khao Sam Yotเขาสามยอด30,176
105Huai Yaiห้วยใหญ่30,123
106Thung Songทุ่งสง30,029
107Khok Tumโคกตูม29,343
108Pho Klangโพธิ์กลาง28,955
109Kamphaeng Phetกำแพงเพชร28,817
110Nong Samrongหนองสำโรง28,716
111Tha Yangท่ายาง28,445
112Mae Saiแม่สาย28,408
113San Sai Luangสันทรายหลวง28,070
114Samut Songkhramสมุทรสงคราม27,831
115Krathum Baenกระทุ่มแบน27,827
116Kanchanaburiกาญจนบุรี27,816
117Ban Phaiบ้านไผ่27,786
118Hua Thaleหัวทะเล27,733
119Na Diนาดี27,733
120Krathum Lomกระทุ่มล้ม27,587
121Phraek Saแพรกษา27,207
122Khao Phra Ngamเขาพระงาม26,906
123Warin Chamrapวารินชำราบ26,738
124Betongเบตง26,657
125Pak Phraekปากแพรก26,584
126Chonburiชลบุรี26,313
127Nakhon Phanomนครพนม26,281
128Buriramบุรีรัมย์25,968
129Amnat Charoenอำนาจเจริญ25,786
130Ban Phruบ้านพรุ25,554
131Bang Phunบางพูน25,509
132Suphanburiสุพรรณบุรี25,359
133Saen Sukแสนสุข25,166
134Thap Maทับมา24,669
135Tha Sai Luatท่าสายลวด24,517
136Om Yaiอ้อมใหญ่24,027
137Si Rachaศรีราชา23,927
138Satunสตูล23,837
139Pathum Thaniปทุมธานี23,633
140Takhliตาคลี23,526
141Khlong Lan Phatthanaคลองลานพัฒนา23,416
142Takhian Tiaตะเคียนเตี้ย23,410
143Sai Maไทรม้า23,316
144Mae Choแม่โจ้23,273
145Chanthaburiจันทบุรี23,024
146Sattahipสัตหีบ22,772
147Wichian Buriวิเชียรบุรี22,557
148Lopburiลพบุรี22,299
149Sametเสม็ด22,278
150Bang Sao Thongบางเสาธง22,243
151Wiang Phang Khamเวียงพางคำ22,135
152Tha Changท่าช้าง21,836
153Nong Bua Lamphuหนองบัวลำภู21,819
154Sadaoสะเดา21,743
155Phetchaburiเพชรบุรี21,647
156Wang Nam Yenวังน้ำเย็น21,562
157Phichitพิจิตร21,400
158Pa Tongป่าตอง21,358
159Mae Yaoแม่ยาว21,251
160Laem Fa Phaแหลมฟ้าผ่า21,216
161Phetchabunเพชรบูรณ์21,129
162Ban Buengบ้านบึง21,088
163Lam Ta Saoลำตาเสา21,067
164Nang Rongนางรอง20,977
165Isanอิสาณ20,629
166Thep Nakhonเทพนคร20,555
167Loeiเลย20,446
168Nong Tamluengหนองตำลึง20,335
169Yasothonยโสธร20,327
170Na Klangนากลาง20,303
171Khlong Khutคลองขุด20,255
172Tha Phaท่าผา20,211
173Ayothayaอโยธยา20,035
174Na Sanนาสาร19,826
175Nanน่าน19,783
176Pak Phanangปากพนัง19,521
177Tha Khamท่าข้าม19,227

Source: Department of Provincial Administration, Thailand (2019 estimate), via City Population by Thomas Brinkhoff.

Why don't these match official city populations?Official figures typically count only the population within administrative boundaries. UN urban area figures cover the entire built-up area, which can include multiple cities and towns.

Tokyo

33,338,852

Urban area

9,953,160

23 wards

Essen

2,709,375

Urban area

573,618

City of Essen

Ankara

3,630,865

Urban area

5,186,002

Metropolitan municipality

What counts as an urban area? The UN uses satellite imagery to map built-up land, and treats each continuous stretch of built-up land as an urban area. This means that urban areas can extend beyond official city boundaries, and may include multiple cities and towns within a single urban area.

Can an urban area be smaller than its city? Yes. While most cities have urban areas larger than their administrative boundaries, some cities have extensive administrative limits that include sparsely populated areas.

55 urban areas in Thailand with 50,000 or more inhabitants, ranked by the UN's population estimates for 2026.

RankUrban AreaPopulation Estimate (2026)Yearly ChangeLand Area (km²)Density (P/km²)World RankProjections (2030)Projections (2050)
1Krung Thep Maha Nakhon (Bangkok)18,338,825+0.86%2,6716,8661418,973,00520,462,207
2Chiang Mai625,359−0.20%2132,936867620,278574,130
3Hat Yai406,270−0.19%785,2091,413403,114379,192
4Phuket388,642−0.19%1033,7731,477385,708363,046
5Lop Buri384,125+1.55%1113,4481,499407,983469,212
6Chon Buri300,774+1.16%1422,1121,941314,766356,073
7Khon Kaen272,502−0.77%883,1112,163264,057230,439
8Pattaya241,653+1.34%922,6322,458254,619283,102
9Nakhon Pathom235,390+1.26%723,2512,522247,286313,228
10Nakhon Ratchasima217,847−0.93%732,9682,753209,783166,338
11Phra Nakhon Si Ayutthaya213,899+1.19%683,1362,803224,118293,124
12Songkhla212,793−0.18%643,3252,820211,220199,315
13Ubon Ratchathani190,802−0.56%553,4693,189186,548162,207
14Phitsanulok188,532−0.59%583,2623,235184,089161,197
15Lampang175,303−0.20%434,0773,495173,933163,990
16Nakhon Si Thammarat151,392−0.21%364,2054,065150,107141,500
17Thanyaburi148,552+1.17%453,3014,138155,517180,639
18Tha Chang139,098+4.09%373,7194,430161,826186,843
19Udon Thani137,896−0.94%472,9594,467132,722105,721
20Ranong126,433−0.19%274,6834,892125,487118,542
21Surat Thani126,151−0.22%452,8034,905125,064100,789
22Yala112,784−0.21%234,9045,541111,836105,498
23Chiang Rai112,197−0.46%274,1865,567110,132103,755
24Nakhon Sawan104,854−0.46%343,0845,966102,94584,773
25Sattahip103,188+1.09%392,6466,073107,681169,375
26Saraburi100,730+1.31%293,4506,210106,006138,125
27Ban Phaeo100,474+2.67%352,8876,226111,208189,063
28Thalang100,260−0.18%313,2346,24899,52692,410
29Uttaradit94,923−0.19%214,5206,58594,20288,310
30Suphan Buri92,455+5.95%303,0826,782114,467156,529
31Phetchaburi91,823+1.60%253,7336,83897,709105,197
32Ratchaburi81,985+0.88%243,4167,70384,85595,982
33Chachoengsao80,446+1.33%223,6247,84484,71793,581
34Kanchanaburi80,223+1.77%272,9287,87285,91694,459
35Pattani79,939−0.20%203,9977,90879,30575,002
36Kamphaeng Phet76,807−0.43%223,4918,22775,49567,559
37Buri Ram74,981−0.67%203,7498,40872,98361,893
38Map Ta Phut74,311+1.10%401,8588,48577,57796,407
39Saen Suk73,959−0.58%233,2168,53772,24159,563
40Trang71,917−0.20%193,7858,74671,33367,411
41Rayong71,845+1.00%471,5298,75774,717117,223
42Roi Et71,061−0.58%223,2308,83769,42459,913
43Pa Tong70,787−0.20%9.007,8658,87770,20966,049
44Prachin Buri68,124+2.01%154,4249,20973,58889,708
45Phatthalung67,968−0.21%135,2289,22667,40763,573
46Phrae67,362−0.21%223,0629,30866,796–
47Mukdahan65,059−0.55%144,6479,65263,63657,489
48Kalasin62,580−0.56%163,91110,04761,17352,873
49Sakon Nakhon61,888−0.56%154,12610,15160,49154,551
50Phetchabun60,476−0.44%193,18310,36259,414–
51Nakhon Phanom60,333−0.55%154,02210,38059,00551,175
52Chumphon58,809−0.21%163,67610,62858,30952,008
53Klaeng57,497+1.04%144,10710,84359,89974,015
54Maha Sarakham55,467−0.57%173,26311,23754,208–
55Tha Pha53,415+0.93%222,42811,63555,41188,462

Source: United Nations, Department of Economic and Social Affairs, Population Division (2025). World Urbanization Prospects: The 2025 Revision, Online Edition.

See also