# Si Wilai, Bueng Kan Province – Subdistricts, Population & Map

> Source: https://wherepedia.org/thailand/bueng-kan/si-wilai/

District · Bueng Kan Province 

# Si Wilai

Si Wilai is a district (amphoe) of Thailand in Bueng Kan Province. It had an estimated **27,102 people** in 2023 on 340 km² (about 80 per km²). Its main town is Si Wilai. It is divided into 5 subdistricts. 49 named villages and localities are recorded here, and 62 mapped services such as hospitals, banks and schools.

- 27,102people (2023)
- 340km²
- 5subdistricts
- 62mapped services

## How many people live in Si Wilai?

Si Wilai had an estimated **27,102 people** in 2023 — 9.6% of Bueng Kan Province, 634th of 928 districts. There are 1,024 women for every 1,000 men (close to the Bueng Kan Province figure of 1,025). Spread over 340 km², that is about **80 people per km²**, 517th of 928 districts.

22.6% of people are children under 15 and 14.5% are 65 or older; the median age is about 42 years (it is 41 across Bueng Kan Province). For every 100 people of working age (15–64) there are 59 children and older people.

0–4 ****2,134**

5–9 ****2,069**

10–14 ****1,927**

15–19 ****1,440**

20–24 ****845**

25–29 ****1,208**

30–34 ****1,469**

35–39 ****1,828**

40–44 ****2,002**

45–49 ****2,025**

50–54 ****2,163**

55–59 ****2,124**

60–64 ****1,927**

65–69 ****1,603**

70–74 ****934**

75–79 ****684**

80+ ****720**

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 Si Wilai?

Si Wilai lies in [Bueng Kan Province](https://wherepedia.org/thailand/bueng-kan/), [Thailand](https://wherepedia.org/thailand/). It borders 3 other districts: [Mueang Bueng Kan](https://wherepedia.org/thailand/bueng-kan/mueang-bueng-kan/), [Phon Charoen](https://wherepedia.org/thailand/bueng-kan/phon-charoen/) and [Seka](https://wherepedia.org/thailand/bueng-kan/seka/). By area it is the 553rd largest of 928 districts in Thailand. It covers 8.5% of [Bueng Kan Province](https://wherepedia.org/thailand/bueng-kan/). The centre of Si Wilai is about 601 km in a straight line from Bangkok, the capital. It is about 25 km from Bueng Kan, the main town of Bueng Kan Province. The centre point is at 18.1593° N, 103.7577° E. Local names: ศรีวิไล .

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 Si Wilai

Subdistrict Area km² Localities Services 

[Chumphu Phon](https://wherepedia.org/thailand/bueng-kan/si-wilai/chumphu-phon/) 83 13 6 

[Na Sabaeng](https://wherepedia.org/thailand/bueng-kan/si-wilai/na-sabaeng/) 75 7 3 

[Na Saeng](https://wherepedia.org/thailand/bueng-kan/si-wilai/na-saeng/) 64 10 8 

[Na Sing](https://wherepedia.org/thailand/bueng-kan/si-wilai/na-sing/) 65 6 5 

[Si Wilai](https://wherepedia.org/thailand/bueng-kan/si-wilai/si-wilai/) 52 13 40 

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 Si Wilai

Open gazetteers list **49 villages, towns and localities** in Si Wilai. Settlements here lie between about 159 m and 203 m above sea level (median 166 m).

- Ban Chomphu Phon
- Ban Chum Phu Phon
- Ban Dong Kasen
- Ban Huai Luek
- Ban Huai Luek Intharanimit
- Ban Huai Luek Santisuk
- Ban Kasem Phatthana
- Ban Kasem Samakkhi
- Ban Kham Chai Wan
- Ban Kham Khaen Phatthana
- Ban Kham Prasoet
- Ban Khok Samran
- Ban Khok Samran Samakkhi
- Ban Mai Phatthana
- Ban Na Kham Khaen
- Ban Na Sabaeng
- Ban Na Sabaeng Samakkhi
- Ban Na Saeng
- Ban Na Saeng Sakhon
- Ban Na Sai
- Ban Na Sai Samakkhi
- Ban Na Sing
- Ban Na Sing Sakhon
- Ban Noi Nong Waeng
- Ban Non Muang
- Ban Non Sawang
- Ban Non Thai Prasit
- Ban Nong Bua Ngam
- Ban Nong Bua Ngoen
- Ban Nong Chan
- Ban Nong Chan Non Mani
- Ban Nong Chan Sakhon
- Ban Nong Chik
- Ban Pha Suk
- Ban Phon Mongkhon
- Ban Phon Sawan
- Ban Saeng Charoen
- Ban Sai Thong
- Ban Sam Toei
- Ban San Sai Ngam
- Ban Si Wilai
- Ban Si Wilai Chumphon
- Ban Si Wilai Phatthana
- Ban Si Wilai Rungrueang
- Ban Si Wilai Samakkhi
- Ban Sok Kam
- Ban Thung Sawang
- Ban U Kham
- Si Wilai

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 Si Wilai

Named natural and historic features inside Si Wilai, from the GeoNames gazetteer.

### Water

11 rivers and streams; 9 reservoirs and tanks.

- Ang Kep Nam Fai Yai
- Ang Kep Nam Huai Kep
- Ang Kep Nam Huai Kham Yai
- Ang Kep Nam Huai Luek Santisuk
- Ang Kep Nam Nong Bo Ma Ngong
- Ang Kep Nam Nong Bo Nam
- Ang Kep Nam Nong Chan
- Ang Kep Nam Phu Thok
- Huai Hae
- Huai Hi
- Huai Hin
- Huai Kham Khaen
- Huai Luek
- Huai Nong Khai Nok
- Huai Pong Khom
- Huai Sai
- Huai Sai Noi
- Huai Sai Yai
- Huai Ueat
- Sa Luang

### Hills and mountains

1 mountain.

- Phu Thok Noi · 305 m

### Getting around

1 airfield.

- Ban Siwilai

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 Si Wilai and the best time to visit

In Si Wilai, the warmest month is Apr (average 30 °C) and the coolest is Dec (20 °C). About 1,517 mm of rain falls in a year; the wettest month is Aug (322 mm) and the driest Dec (7 mm). The most comfortable months for a visit are **October to March**.

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

Month Average °C Rain mm 

Jan 20 8 

Feb 24 16 

Mar 27 44 

Apr 30 71 

May 29 193 

Jun 28 213 

Jul 27 308 

Aug 27 322 

Sep 27 230 

Oct 25 90 

Nov 23 16 

Dec 20 7 

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

## Hospitals, banks and other services in Si Wilai

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

- Hospitals14
- Banks2
- Petrol pumps4
- Hotels8
- Schools8
- Colleges and universities1
- Pharmacies2
- Restaurants21
- Police stations1
- Dental clinics1

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 Si Wilai?In Bueng Kan Province, Thailand
- What is the population of Si Wilai?27,102 (2023 estimate)
- What is the median age in Si Wilai?About 42 years (2023 estimate)
- What is the population density of Si Wilai?About 80 people per km²
- What borders Si Wilai?Mueang Bueng Kan, Phon Charoen and Seka
- How many villages are in Si Wilai?49 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Si Wilai?Settlements lie between 159 m and 203 m
- How many reservoirs and tanks are in Si Wilai?9 named in GeoNames
- What is the highest point in Si Wilai?Phu Thok Noi (305 m, GeoNames elevation model)
- What is the best time to visit Si Wilai?October to March
- How many hospitals are in Si Wilai?14 mapped
- How many banks are in Si Wilai?2 mapped
- How many petrol pumps are in Si Wilai?4 mapped
- What is the P-code of Si Wilai?TH3807 (OCHA common operational dataset)