# Wiang Sa, Surat Thani Province – Subdistricts & Population

> Source: https://wherepedia.org/thailand/surat-thani/wiang-sa/

District · Surat Thani Province 

# Wiang Sa

Wiang Sa is a district (amphoe) of Thailand in Surat Thani Province. It had an estimated **55,069 people** in 2023 on 387 km² (about 142 per km²). Its main town is Wiang Sa. It is divided into 5 subdistricts. 83 named villages and localities are recorded here, and 249 mapped services such as hospitals, banks and schools.

- 55,069people (2023)
- 387km²
- 5subdistricts
- 249mapped services

## How many people live in Wiang Sa?

Wiang Sa had an estimated **55,069 people** in 2023 — 5.3% of Surat Thani Province, 331st of 928 districts. There are 1,056 women for every 1,000 men (above the Surat Thani Province figure of 1,035). Spread over 387 km², that is about **142 people per km²**, 249th of 928 districts.

18.7% of people are children under 15 and 15.7% are 65 or older; the median age is about 40 years (it is 39 across Surat Thani Province). For every 100 people of working age (15–64) there are 53 children and older people.

0–4 ****3,619**

5–9 ****3,515**

10–14 ****3,159**

15–19 ****3,044**

20–24 ****2,999**

25–29 ****3,634**

30–34 ****3,681**

35–39 ****3,669**

40–44 ****4,023**

45–49 ****4,102**

50–54 ****3,811**

55–59 ****3,993**

60–64 ****3,151**

65–69 ****2,964**

70–74 ****2,161**

75–79 ****1,745**

80+ ****1,799**

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 Wiang Sa?

Wiang Sa lies in [Surat Thani Province](https://wherepedia.org/thailand/surat-thani/), [Thailand](https://wherepedia.org/thailand/). It borders 7 other districts: [Ban Na San](https://wherepedia.org/thailand/surat-thani/ban-na-san/), [Chawang](https://wherepedia.org/thailand/nakhon-si-thammarat/chawang/), [Khian Sa](https://wherepedia.org/thailand/surat-thani/khian-sa/), [Phipun](https://wherepedia.org/thailand/nakhon-si-thammarat/phipun/), [Phrasaeng](https://wherepedia.org/thailand/surat-thani/phrasaeng/), [Tham Phannara](https://wherepedia.org/thailand/nakhon-si-thammarat/tham-phannara/) and [Thung Yai](https://wherepedia.org/thailand/nakhon-si-thammarat/thung-yai/). By area it is the 507th largest of 928 districts in Thailand. It covers 3.0% of [Surat Thani Province](https://wherepedia.org/thailand/surat-thani/). The centre of Wiang Sa is about 588 km in a straight line from Bangkok, the capital. It is about 61 km from Surat Thani, the main town of Surat Thani Province. The centre point is at 8.5887° N, 99.3491° E. Local names: เวียงสระ .

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 Wiang Sa

Subdistrict Area km² Localities Services 

[Ban Song](https://wherepedia.org/thailand/surat-thani/wiang-sa/ban-song/) 128 21 80 

[Khao Niphan](https://wherepedia.org/thailand/surat-thani/wiang-sa/khao-niphan/) 53 9 14 

[Khlong Chanuan](https://wherepedia.org/thailand/surat-thani/wiang-sa/khlong-chanuan/) 75 18 16 

[Thung Luang](https://wherepedia.org/thailand/surat-thani/wiang-sa/thung-luang/) 85 26 22 

[Wiang Sa](https://wherepedia.org/thailand/surat-thani/wiang-sa/wiang-sa/) 47 12 117 

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 Wiang Sa

Open gazetteers list **83 villages, towns and localities** in Wiang Sa. The largest with a recorded population: Wiang Sa (11,933). Settlements here lie between about 13 m and 181 m above sea level (median 31 m).

- Ban Bang Lai
- Ban Bang Thalu
- Ban Bon Sai
- Ban Don Riang
- Ban Han Phet
- Ban Hua Saphan
- Ban Huai Kaeo
- Ban Huai Phlu Thuean
- Ban Huai Pho
- Ban Huai Plak Mu
- Ban Huai Sai
- Ban Huai Sai Khao
- Ban Khao Khap
- Ban Khao Niphan
- Ban Khao Pun
- Ban Khiri Rat Phatthana
- Ban Khlong Chanuan
- Ban Khlong Hin Phaeng
- Ban Khlong Hon
- Ban Khlong Ka
- Ban Khlong Lam Phla
- Ban Khlong Siao
- Ban Khlong Tan
- Ban Khlong Won
- Ban Khok Champa
- Ban Khok Kruat
- Ban Khok Maphrao
- Ban Khok Nga
- Ban Khuan
- Ban Khuan Bok
- Ban Khuan Charoen
- Ban Khuan Klang
- Ban Khuan Mai
- Ban Khuan Niang
- Ban Khuan Phlo
- Ban Khuan Prang
- Ban Khuan Ron
- Ban Khuan Sato
- Ban Khuan Sung
- Ban Klang
- Ban Lan Khe
- Ban Maharat Song
- Ban Mai
- Ban Na Chem Het
- Ban Na Neng
- Ban Nai Bot
- Ban Nam Rop
- Ban Nam Thao
- Ban Nong Chum Saeng
- Ban Nong Nio Nang
- Ban Nong Sam Sip
- Ban Nong Sano
- Ban Nong To Siat
- Ban Nong Toei
- Ban Nuea Khlong
- Ban Pak Han
- Ban Pak Ka
- Ban Pak Lat
- Ban Pak Sai
- Ban Pak Tan
- Ban Phlu Thuan
- Ban Phru Krachaeng
- Ban Rai Tai
- Ban Sai Hong
- Ban Sai Khun Narong
- Ban Sai Nai
- Ban Sai Thong
- Ban Sai Yong
- Ban Song
- Ban Song Nuea
- Ban Suan Kluai
- Ban Thang Wiang
- Ban Thap To Yung
- Ban Thawon Rat
- Ban Thung Kha
- Ban Thung Krut
- Ban Thung Luang
- Ban Tok
- Ban Wang Yai
- Ban Wiang
- Ban Yom Ngam
- Ban Yung Ngam
- Wiang Sa

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 Wiang Sa

Named natural and historic features inside Wiang Sa, from the GeoNames gazetteer.

### Water

6 rivers and streams; 1 reservoir or tank; 1 waterfall.

- Ang Kep Nam Bang Lai
- Huai Chum Saeng
- Huai Sam Phraek
- Khlong Nam Rop
- Khlong Nam Thao
- Khlong Tan
- Khlong Won
- Nam Tok Huai Takhian

### Coast and islands

1 lagoon.

- Han Noi Bot

### Hills and mountains

10 hills; 3 mountains.

- Khao La · 1,068 m
- Khao Kabiat · 959 m
- Khao Plai Hon · 450 m
- Khao Phra · 263 m
- Khao Na Daeng · 218 m
- Khao Khok · 160 m
- Khao Lek · 156 m
- Khao Dap · 133 m
- Khao Chong Wua Chon · 125 m
- Khao Tham Pla · 123 m
- Khao Chum Saeng · 113 m
- Khao Khuan Din · 74 m
- Khao Niphan · 48 m

### Getting around

2 railway stations.

- Sathani Rotfai Ban Phru Krachaeng
- Sathani Rotfai Ban Song

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 Wiang Sa and the best time to visit

In Wiang Sa, the warmest month is Apr (average 28 °C) and the coolest is Jan (24 °C). About 2,384 mm of rain falls in a year; the wettest month is Nov (334 mm) and the driest Feb (32 mm). The most comfortable months for a visit are **February to April**.

- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec

Month Average °C Rain mm 

Jan 24 137 

Feb 25 32 

Mar 26 115 

Apr 28 115 

May 27 212 

Jun 26 215 

Jul 26 212 

Aug 26 220 

Sep 26 270 

Oct 26 289 

Nov 25 334 

Dec 25 232 

Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/).

## Hospitals, banks and other services in Wiang Sa

Places mapped inside Wiang Sa in open map data, by type — each number opens the full list with locations.

- Hospitals31
- Banks12
- Petrol pumps18
- Hotels30
- Shopping malls4
- Schools13
- Colleges and universities3
- Pharmacies2
- Restaurants129
- Police stations3
- Dental clinics4

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 Wiang Sa?In Surat Thani Province, Thailand
- What is the population of Wiang Sa?55,069 (2023 estimate)
- What is the median age in Wiang Sa?About 40 years (2023 estimate)
- What is the population density of Wiang Sa?About 142 people per km²
- What borders Wiang Sa?Ban Na San, Chawang, Khian Sa, Phipun, Phrasaeng, Tham Phannara and Thung Yai
- How many villages are in Wiang Sa?83 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Wiang Sa?Settlements lie between 13 m and 181 m
- How many reservoirs and tanks are in Wiang Sa?1 named in GeoNames
- What is the highest point in Wiang Sa?Khao La (1,068 m, GeoNames elevation model)
- What is the best time to visit Wiang Sa?February to April
- How many hospitals are in Wiang Sa?31 mapped
- How many banks are in Wiang Sa?12 mapped
- How many petrol pumps are in Wiang Sa?18 mapped
- What is the P-code of Wiang Sa?TH8415 (OCHA common operational dataset)