# Wang Sam Mo, Udon Thani Province – Subdistricts & Population > Source: https://wherepedia.org/thailand/udon-thani/wang-sam-mo/ District · Udon Thani Province # Wang Sam Mo Wang Sam Mo is a district (amphoe) of Thailand in Udon Thani Province. It had an estimated **34,738 people** in 2023 on 748 km² (about 46 per km²). Its main town is Wang Sam Mo. It is divided into 6 subdistricts. 73 named villages and localities are recorded here, and 130 mapped services such as hospitals, banks and schools. - 34,738people (2023) - 748km² - 6subdistricts - 130mapped services ## How many people live in Wang Sam Mo? Wang Sam Mo had an estimated **34,738 people** in 2023 — 3.8% of Udon Thani Province, 528th of 928 districts. There are 999 women for every 1,000 men (below the Udon Thani Province figure of 1,051). Spread over 748 km², that is about **46 people per km²**, 776th of 928 districts. 22.4% of people are children under 15 and 11.9% are 65 or older; the median age is about 40 years (it is 42 across Udon Thani Province). For every 100 people of working age (15–64) there are 52 children and older people. 0–4 ****2,545** 5–9 ****2,653** 10–14 ****2,593** 15–19 ****2,089** 20–24 ****1,491** 25–29 ****1,746** 30–34 ****2,048** 35–39 ****2,402** 40–44 ****2,852** 45–49 ****2,623** 50–54 ****2,554** 55–59 ****2,524** 60–64 ****2,488** 65–69 ****1,809** 70–74 ****1,102** 75–79 ****684** 80+ ****535** Source: [National Statistics Office of Thailand via OCHA HDX, population 2023 (COD-PS, CC BY-IGO)](https://data.humdata.org/dataset/cod-ps-tha). ## Where is Wang Sam Mo? Wang Sam Mo lies in [Udon Thani Province](https://wherepedia.org/thailand/udon-thani/), [Thailand](https://wherepedia.org/thailand/). It borders 10 other districts: [Chai Wan](https://wherepedia.org/thailand/udon-thani/chai-wan/), [Kham Muang](https://wherepedia.org/thailand/kalasin/kham-muang/), [Kut Bak](https://wherepedia.org/thailand/sakon-nakhon/kut-bak/), [Nikhom Nam Un](https://wherepedia.org/thailand/sakon-nakhon/nikhom-nam-un/), [Nong Kung Si](https://wherepedia.org/thailand/kalasin/nong-kung-si/), [Sam Chai](https://wherepedia.org/thailand/kalasin/sam-chai/), [Si That](https://wherepedia.org/thailand/udon-thani/si-that/), [Song Dao](https://wherepedia.org/thailand/sakon-nakhon/song-dao/), [Tha Khantho](https://wherepedia.org/thailand/kalasin/tha-khantho/) and [Waritchaphum](https://wherepedia.org/thailand/sakon-nakhon/waritchaphum/). By area it is the 228th largest of 928 districts in Thailand. It covers 6.8% of [Udon Thani Province](https://wherepedia.org/thailand/udon-thani/). The centre of Wang Sam Mo is about 480 km in a straight line from Bangkok, the capital. It is about 82 km from Udon Thani, the main town of Udon Thani Province. The centre point is at 17.0165° N, 103.4317° E. Local names: วังสามหมอ . Source: [Royal Thai Survey Department via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-tha). ## Subdistricts of Wang Sam Mo Subdistrict Area km² Localities Services [Bayao](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/bayao/) 203 14 7 [Kham Khok Sung](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/kham-khok-sung/) 68 9 6 [Nong Kung Thap Ma](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/nong-kung-thap-ma/) 102 10 8 [Nong Ya Sai](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/nong-ya-sai/) 78 8 10 [Pha Suk](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/pha-suk/) 237 24 15 [Wang Sam Mo](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/wang-sam-mo/) 61 9 84 Source: [Royal Thai Survey Department via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-tha); [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/); [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/). ## Villages and localities in Wang Sam Mo Open gazetteers list **73 villages, towns and localities** in Wang Sam Mo. Settlements here lie between about 170 m and 311 m above sea level (median 224 m). - Ban Ba Yao - Ban Dan Yai - Ban Dong Klang - Ban Dong Ngam - Ban Dong Ngam Noi - Ban Dong Setthi - Ban Dong Yen - Ban Hua Na Kham - Ban Kham Bit - Ban Kham Bong - Ban Kham Chuang - Ban Kham Hai - Ban Kham Hai Noi - Ban Kham Khok Sung - Ban Kham Noi - Ban Kham Noi Mai Thai Charoen - Ban Kham Wai - Ban Kham Yang - Ban Kham Yang Noi - Ban Khlong Nam Yen - Ban Khok Lao - Ban Khok Sa-at - Ban Khok Sawang - Ban Khok Yai Phatthana - Ban Khum Noi - Ban Klin Nari - Ban Laem Thong - Ban Loeng Thon - Ban Na Chumphon - Ban Na Kae - Ban Na Ngam - Ban Na Nok Chum - Ban Na Prong - Ban Na Tat - Ban Noi Han Chai - Ban Noi Mali Sathaphon - Ban Noi Phatthana - Ban Non Phak Hom - Ban Non Sa-at - Ban Non Sawang - Ban Non Sombun - Ban Non Tae - Ban Nong Chang - Ban Nong Kung Noi Phatthana - Ban Nong Kung Thap Ma - Ban Nong Lum Phuk - Ban Nong Phai - Ban Nong Waeng Khok - Ban Nong Ya Sai - Ban Pa Oi - Ban Pha Suk - Ban Pha Thong - Ban Pho Ngam - Ban Phon Charoen - Ban Phu Din - Ban Phu Ngoen - Ban Sai Thong - Ban Saphan Luean Lam - Ban Som Narin - Ban Som Sawat - Ban Sumontha - Ban Tat Phu Wong - Ban Tha Lat - Ban Tha Samran - Ban Tha Yiam - Ban Thai Somphon - Ban Wang Chai - Ban Wang Sombun - Ban Wang Thong - Ban Wang Yai - Ban Yang Charoen - Ban Yang Kham - Wang Sam Mo Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/); [© OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements](https://www.openstreetmap.org/copyright). ## Landscape and landmarks of Wang Sam Mo Named natural and historic features inside Wang Sam Mo, from the GeoNames gazetteer. ### Water 12 rivers and streams; 10 reservoirs and tanks. - Ang Kep Nam Huai Bong - Ang Kep Nam Huai Kham Hai - Ang Kep Nam Huai Klang - Ang Kep Nam Huai Pladuk - Ang Kep Nam Huai Sai - Ang Kep Nam Huai Tham Phuang - Ang Kep Nam Huai Tham Phuang - Ang Kep Nam Kham Mak Yang - Ang Kep Nam Nong Dun - Ang Kep Nam Nong Khuekrit - Huai Hin Taek - Huai Hin Taek - Huai I Pueng - Huai Koeng - Huai Lam Phan Chat - Huai Lat Kaeo - Huai Lat Muang - Huai Phueng - Huai Pong Khae - Huai Tham Phung - Huai Yang - Lam Phan Chat ### Hills and mountains 13 hills; 6 mountains. - Phu San Ta Saeng · 643 m - Phu Pha Daeng · 620 m - Phu Pha Hak · 441 m - Phu Nang Hong · 361 m - Phu Wong · 344 m - Phu Phloen · 326 m - Phu Mai Sak Lak · 305 m - Phu Mai Po · 288 m - Phu Tham Noi · 288 m - Phu Kamphra · 274 m - Phu Hin Liam · 270 m - Phu Ya Nang · 265 m - Phu Kho · 257 m - Phu Hai · 256 m - Phu Wua · 254 m - Phu Noi · 250 m - Phu Hang Nokyung · 240 m - Phu Nang Aen · 228 m - Phu Sanam · 197 m Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/). Places of worship are not listed. Elevations are from the GeoNames terrain model and are approximate. ## Weather in Wang Sam Mo and the best time to visit In Wang Sam Mo, the warmest month is Apr (average 31 °C) and the coolest is Dec (21 °C). About 1,434 mm of rain falls in a year; the wettest month is Aug (287 mm) and the driest Dec (5 mm). The most comfortable months for a visit are **October to February**. - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec Month Average °C Rain mm Jan 22 7 Feb 26 18 Mar 29 44 Apr 31 80 May 29 191 Jun 27 197 Jul 27 245 Aug 26 287 Sep 26 244 Oct 25 100 Nov 23 17 Dec 21 5 Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/). ## Hospitals, banks and other services in Wang Sam Mo Places mapped inside Wang Sam Mo in open map data, by type — each number opens the full list with locations. - Hospitals26 - Banks4 - Petrol pumps9 - Hotels16 - Schools12 - Colleges and universities2 - Restaurants54 - Police stations4 - Dental clinics3 Source: [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/). Coverage depends on what has been mapped; contact details are not shown. ## Quick answers - Where is Wang Sam Mo?In Udon Thani Province, Thailand - What is the population of Wang Sam Mo?34,738 (2023 estimate) - What is the median age in Wang Sam Mo?About 40 years (2023 estimate) - What is the population density of Wang Sam Mo?About 46 people per km² - What borders Wang Sam Mo?Chai Wan, Kham Muang, Kut Bak, Nikhom Nam Un, Nong Kung Si, Sam Chai, Si That, Song Dao, Tha Khantho and Waritchaphum - How many villages are in Wang Sam Mo?73 named settlements (GeoNames, OpenStreetMap) - What is the elevation of Wang Sam Mo?Settlements lie between 170 m and 311 m - How many reservoirs and tanks are in Wang Sam Mo?10 named in GeoNames - What is the highest point in Wang Sam Mo?Phu San Ta Saeng (643 m, GeoNames elevation model) - What is the best time to visit Wang Sam Mo?October to February - How many hospitals are in Wang Sam Mo?26 mapped - How many banks are in Wang Sam Mo?4 mapped - How many petrol pumps are in Wang Sam Mo?9 mapped - What is the P-code of Wang Sam Mo?TH4110 (OCHA common operational dataset)