# Benchalak, Si Sa Ket Province – Subdistricts, Population & Map

> Source: https://wherepedia.org/thailand/si-sa-ket/benchalak/

District · Si Sa Ket Province 

# Benchalak

Benchalak is a district (amphoe) of Thailand in Si Sa Ket Province. It had an estimated **15,491 people** in 2023 on 255 km² (about 61 per km²). Its main town is Siao. It is divided into 5 subdistricts. 72 named villages and localities are recorded here, and 49 mapped services such as hospitals, banks and schools.

- 15,491people (2023)
- 255km²
- 5subdistricts
- 49mapped services

## How many people live in Benchalak?

Benchalak had an estimated **15,491 people** in 2023 — 2.5% of Si Sa Ket Province, 838th of 928 districts. There are 1,037 women for every 1,000 men (below the Si Sa Ket Province figure of 1,067). Spread over 255 km², that is about **61 people per km²**, 681st of 928 districts.

22.6% of people are children under 15 and 13.2% are 65 or older; the median age is about 41 years (it is 43 across Si Sa Ket Province). For every 100 people of working age (15–64) there are 56 children and older people.

0–4 ****1,135**

5–9 ****1,158**

10–14 ****1,202**

15–19 ****906**

20–24 ****531**

25–29 ****635**

30–34 ****826**

35–39 ****1,113**

40–44 ****1,264**

45–49 ****1,260**

50–54 ****1,181**

55–59 ****1,213**

60–64 ****1,024**

65–69 ****865**

70–74 ****496**

75–79 ****347**

80+ ****335**

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 Benchalak?

Benchalak lies in [Si Sa Ket Province](https://wherepedia.org/thailand/si-sa-ket/), [Thailand](https://wherepedia.org/thailand/). It borders 6 other districts: [Det Udom](https://wherepedia.org/thailand/ubon-ratchathani/det-udom/), [Kantharalak](https://wherepedia.org/thailand/si-sa-ket/kantharalak/), [Nam Kliang](https://wherepedia.org/thailand/si-sa-ket/nam-kliang/), [Non Khun](https://wherepedia.org/thailand/si-sa-ket/non-khun/), [Si Rattana](https://wherepedia.org/thailand/si-sa-ket/si-rattana/) and [Thung Si Udom](https://wherepedia.org/thailand/ubon-ratchathani/thung-si-udom/). By area it is the 669th largest of 928 districts in Thailand. It covers 2.9% of [Si Sa Ket Province](https://wherepedia.org/thailand/si-sa-ket/). The centre of Benchalak is about 470 km in a straight line from Bangkok, the capital. It is about 56 km from Si Sa Ket, the main town of Si Sa Ket Province. The centre point is at 14.7868° N, 104.7310° E. Local names: เบญจลักษ์ .

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 Benchalak

Subdistrict Area km² Localities Services 

[Nong Hang](https://wherepedia.org/thailand/si-sa-ket/benchalak/nong-hang/) 32 14 3 

[Nong Ngu Lueam](https://wherepedia.org/thailand/si-sa-ket/benchalak/nong-ngu-lueam/) 45 12 7 

[Nong Wa](https://wherepedia.org/thailand/si-sa-ket/benchalak/nong-wa/) 53 14 10 

[Siao](https://wherepedia.org/thailand/si-sa-ket/benchalak/siao/) 56 15 25 

[Tha Khlo](https://wherepedia.org/thailand/si-sa-ket/benchalak/tha-khlo/) 69 17 4 

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 Benchalak

Open gazetteers list **72 villages, towns and localities** in Benchalak. Settlements here lie between about 136 m and 185 m above sea level (median 148 m).

- Ban Chok Charoen
- Ban Daeng
- Ban Don Khiao
- Ban Don Khieow
- Ban Huai Siao
- Ban Huai Ta Mai
- Ban Kham Bon
- Ban Kham Klang
- Ban Kham Sa-at
- Ban Khwao Thanang
- Ban Kut Phak Nam
- Ban Kut Saming
- Ban Lao Oi
- Ban Na Charoen
- Ban Na Kham
- Ban Na Samai
- Ban Noi Hin Kling
- Ban Non Alang
- Ban Non Chakchan
- Ban Non Chiang Si
- Ban Non Chiang Son
- Ban Non Kham Tue
- Ban Non Khun Noi
- Ban Non Lai
- Ban Non Mak Khom
- Ban Non Mi Chai
- Ban Non Sabaeng
- Ban Non Samrong
- Ban Non Samrong Nuea
- Ban Non Wan Fai
- Ban Non Yai
- Ban Nong Bak Thon
- Ban Nong Bua Yai
- Ban Nong Bua Yai Tai
- Ban Nong Chana
- Ban Nong Hang
- Ban Nong Hang Tai
- Ban Nong Khaen
- Ban Nong Khaeo Chang
- Ban Nong Kham
- Ban Nong Khap Kha
- Ban Nong Khu
- Ban Nong Loeng
- Ban Nong Ngulueam Klang
- Ban Nong Ngulueam Nuea
- Ban Nong Ngulueam Tai
- Ban Nong Nok Khian
- Ban Nong Phue
- Ban Nong Plasio
- Ban Nong Tao Kon
- Ban Nong To
- Ban Nong Wa
- Ban Nong Yao
- Ban Pa Lao
- Ban Pa Lao Noi
- Ban Phai Nong Khaen
- Ban Phek
- Ban Phek Noi
- Ban Phon Sung
- Ban Rai Yen Charoen
- Ban Sam Yaek Phatthana
- Ban Sang Mek
- Ban Sang Mek Tai
- Ban Seri Phatthana
- Ban Siao
- Ban Siao Nuea
- Ban Siao Tai
- Ban Tha Kham Noi
- Ban Tha Khlo
- Ban Wang Thong
- Benchalak
- Siao

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 Benchalak

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

### Water

3 reservoirs and tanks; 2 rivers and streams.

- Ang Kep Nam Ban Nong Tao Kon
- Ang Kep Nam Huai Khi Klak
- Ang Kep Nam Nong Wa
- Huai Phai
- Huai Sang

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 Benchalak and the best time to visit

In Benchalak, the warmest month is Apr (average 31 °C) and the coolest is Dec (24 °C). About 1,523 mm of rain falls in a year; the wettest month is Sep (301 mm) and the driest Jan (5 mm). The most comfortable months for a visit are **October to January**.

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

Month Average °C Rain mm 

Jan 26 5 

Feb 28 6 

Mar 30 33 

Apr 31 73 

May 29 173 

Jun 27 202 

Jul 26 297 

Aug 26 299 

Sep 26 301 

Oct 26 108 

Nov 25 21 

Dec 24 7 

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

## Hospitals, banks and other services in Benchalak

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

- Hospitals17
- Banks2
- Petrol pumps3
- Hotels4
- Shopping malls1
- Schools6
- Restaurants15
- Police stations1

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 Benchalak?In Si Sa Ket Province, Thailand
- What is the population of Benchalak?15,491 (2023 estimate)
- What is the median age in Benchalak?About 41 years (2023 estimate)
- What is the population density of Benchalak?About 61 people per km²
- What borders Benchalak?Det Udom, Kantharalak, Nam Kliang, Non Khun, Si Rattana and Thung Si Udom
- How many villages are in Benchalak?72 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Benchalak?Settlements lie between 136 m and 185 m
- How many reservoirs and tanks are in Benchalak?3 named in GeoNames
- What is the best time to visit Benchalak?October to January
- How many hospitals are in Benchalak?17 mapped
- How many banks are in Benchalak?2 mapped
- How many petrol pumps are in Benchalak?3 mapped
- What is the P-code of Benchalak?TH3319 (OCHA common operational dataset)