# Ban Khai, Rayong Province – Subdistricts, Population & Map

> Source: https://wherepedia.org/thailand/rayong/ban-khai/

District · Rayong Province 

# Ban Khai

Ban Khai is a district (amphoe) of Thailand in Rayong Province. It had an estimated **85,406 people** in 2023 on 485 km² (about 176 per km²). Its main town is Ban Khai. It is divided into 7 subdistricts. 112 named villages and localities are recorded here, and 385 mapped services such as hospitals, banks and schools.

- 85,406people (2023)
- 485km²
- 7subdistricts
- 385mapped services

## How many people live in Ban Khai?

Ban Khai had an estimated **85,406 people** in 2023 — 6.5% of Rayong Province, 178th of 928 districts. There are 950 women for every 1,000 men (below the Rayong Province figure of 971). Spread over 485 km², that is about **176 people per km²**, 189th of 928 districts.

15.7% of people are children under 15 and 13.3% are 65 or older; the median age is about 39 years (it is 36 across Rayong Province). For every 100 people of working age (15–64) there are 41 children and older people.

0–4 ****4,887**

5–9 ****4,284**

10–14 ****4,267**

15–19 ****4,565**

20–24 ****5,549**

25–29 ****7,324**

30–34 ****7,038**

35–39 ****6,521**

40–44 ****6,733**

45–49 ****6,545**

50–54 ****5,973**

55–59 ****5,653**

60–64 ****4,709**

65–69 ****4,336**

70–74 ****2,777**

75–79 ****1,864**

80+ ****2,381**

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 Ban Khai?

Ban Khai lies in [Rayong Province](https://wherepedia.org/thailand/rayong/), [Thailand](https://wherepedia.org/thailand/). It borders 4 other districts: [Mueang Rayong](https://wherepedia.org/thailand/rayong/mueang-rayong/), [Nikhom Phatthana](https://wherepedia.org/thailand/rayong/nikhom-phatthana/), [Pluak Daeng](https://wherepedia.org/thailand/rayong/pluak-daeng/) and [Wang Chan](https://wherepedia.org/thailand/rayong/wang-chan/). By area it is the 427th largest of 928 districts in Thailand. It covers 13.2% of [Rayong Province](https://wherepedia.org/thailand/rayong/). The centre of Ban Khai is about 136 km in a straight line from Bangkok, the capital. It is about 19 km from Rayong, the main town of Rayong Province. The centre point is at 12.8354° N, 101.3335° E. Local names: บ้านค่าย .

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 Ban Khai

Subdistrict Area km² Localities Services 

[Ban Khai](https://wherepedia.org/thailand/rayong/ban-khai/ban-khai/) 14 6 68 

[Bang But](https://wherepedia.org/thailand/rayong/ban-khai/bang-but/) 117 25 42 

[Chak Bok](https://wherepedia.org/thailand/rayong/ban-khai/chak-bok/) 63 16 37 

[Nong Bua](https://wherepedia.org/thailand/rayong/ban-khai/nong-bua/) 143 29 63 

[Nong Lalok](https://wherepedia.org/thailand/rayong/ban-khai/nong-lalok/) 98 19 96 

[Nong Taphan](https://wherepedia.org/thailand/rayong/ban-khai/nong-taphan/) 23 9 41 

[Ta Khan](https://wherepedia.org/thailand/rayong/ban-khai/ta-khan/) 29 9 38 

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 Ban Khai

Open gazetteers list **112 villages, towns and localities** in Ban Khai. Settlements here lie between about 7 m and 105 m above sea level (median 31 m).

- Ban Bang But
- Ban Bueng Ton Chan
- Ban Chak Kabok
- Ban Chak Kho
- Ban Chak Ko Phai
- Ban Chak Krathon
- Ban Chak Lek
- Ban Chak Mahat
- Ban Chak Nam Luek
- Ban Chak Phai
- Ban Chak Thong Lang
- Ban Chak Thong Luang
- Ban Chak Yai Nak
- Ban Champhang
- Ban Chet Luk Noen
- Ban Chong Lom
- Ban Hin Khong
- Ban Hua Chuat
- Ban Hua Thung
- Ban Huai Yang
- Ban Huang Hin
- Ban Kao
- Ban Khai
- Ban Khao Loi
- Ban Khao Suan
- Ban Khao Wai
- Ban Khlong Ang
- Ban Khlong Bang Kradan
- Ban Khlong Cham Ka
- Ban Khlong Chang Tai
- Ban Khlong Khanun
- Ban Khlong Lot
- Ban Khlong Mafueang
- Ban Khlong Mangua
- Ban Khlong Nam Ngu
- Ban Khlong Nam Yen
- Ban Khlong Pong
- Ban Khlong Thuea Raet
- Ban Khlong Yai Lam
- Ban Khlong Yai Mueang
- Ban Khot Klang
- Ban Kilo Paet
- Ban Klang
- Ban Ko
- Ban Krahom
- Ban Laem Hiang
- Ban Lahan Rai
- Ban Lum Takhian
- Ban Lum Ton Tan
- Ban Map Krarok
- Ban Map Pa Wai
- Ban Map Song Salueng
- Ban Map Ta Rot
- Ban Map Tong
- Ban Na Matum
- Ban Nai Chak
- Ban Nai Thaeo
- Ban Nam Cho
- Ban Noen Sawang
- Ban Noen Yang Tok Thoi
- Ban Nok Khao
- Ban Nong Ang
- Ban Nong Bua
- Ban Nong Chan
- Ban Nong Chan Kong
- Ban Nong Inthanin
- Ban Nong Kaduang
- Ban Nong Khla
- Ban Nong Kho
- Ban Nong Khok Mu
- Ban Nong Krabok
- Ban Nong Krap
- Ban Nong Lamduan
- Ban Nong Mapring
- Ban Nong Phawa
- Ban Nong Phlong
- Ban Nong Plalai
- Ban Nong Prue
- Ban Nong Saphan
- Ban Nong Ta Chu
- Ban Nong Ta Siang
- Ban Nong Tabaek
- Ban Nong Tao Ruan
- Ban Nong Wa
- Ban Nong Yai
- Ban Pa Si Siat
- Ban Pak Pa
- Ban Phai
- Ban Phai Lom
- Ban Plakang
- Ban Pong
- Ban Sak Hin
- Ban Sala Nam Luek
- Ban Sam Noen
- Ban Saphan Yai Khut
- Ban Suan Lao
- Ban Suan Luang
- Ban Ta Khan
- Ban Ta Sit
- Ban Tha Sao
- Ban Thai Thung
- Ban Thani Kan
- Ban Tin Noen
- Ban Trok Sattaban
- Ban Tua Yang
- Ban Tuayang
- Ban Wat Mai Kabok Khuen Phueng
- Ban Wat Rai
- Ban Yai Ruean
- Ban Yang Kha Khim
- Ban Yang Yong
- นิคมเขาพนมสาทร์

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 Ban Khai

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

### Water

13 rivers and streams; 4 reservoirs and tanks.

- Ang Kep Nam Khao Nguany Chang
- Ang Kep Nam Khlong Luek
- Ang Sap Kaeo
- Khlong Bang Kradan
- Khlong Cham Phang
- Khlong Huang Hin
- Khlong Kalok
- Khlong Kamaeng
- Khlong Khu
- Khlong La-ui
- Khlong Mafueang
- Khlong Mai Tam Ta Khong
- Khlong Nam Ngu
- Khlong Nong Pla Lai
- Khlong Rawoeng
- Khlong Yai
- Sa Nam Nong Phawa

### Hills and mountains

14 mountains; 5 hills.

- Khao Nguang Chang · 693 m
- Khao Khlong Sai · 582 m
- Khao Mai Kaeo · 470 m
- Khao Suan · 470 m
- Khao Na Yak · 435 m
- Khao Takhian Ngam · 422 m
- Khao Luang Tia · 417 m
- Khao Tabaek · 359 m
- Khao Chong Lom · 342 m
- Khao Luk Yot · 314 m
- Khao Luang Tia · 300 m
- Khao Loi · 295 m
- Khao I Keng · 288 m
- Khao Wai Pong · 276 m
- Khao Wua Tai · 239 m
- Khao Pa Yuan · 230 m
- Khao Tha Sao · 200 m
- Khao Hin Khrong · 106 m
- Khao Mai Kaeo · 80 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 Ban Khai and the best time to visit

In Ban Khai, the warmest month is Apr (average 29 °C) and the coolest is Dec (25 °C). About 1,584 mm of rain falls in a year; the wettest month is Sep (295 mm) and the driest Dec (11 mm). The most comfortable months for a visit are **November to February**.

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

Month Average °C Rain mm 

Jan 26 26 

Feb 27 24 

Mar 28 62 

Apr 29 86 

May 29 182 

Jun 28 207 

Jul 27 212 

Aug 27 194 

Sep 27 295 

Oct 27 228 

Nov 26 56 

Dec 25 11 

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

## Hospitals, banks and other services in Ban Khai

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

- Hospitals34
- Banks3
- ATMs1
- Petrol pumps33
- Hotels29
- Schools30
- Colleges and universities13
- Pharmacies9
- Restaurants223
- Police stations6
- 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 Ban Khai?In Rayong Province, Thailand
- What is the population of Ban Khai?85,406 (2023 estimate)
- What is the median age in Ban Khai?About 39 years (2023 estimate)
- What is the population density of Ban Khai?About 176 people per km²
- What borders Ban Khai?Mueang Rayong, Nikhom Phatthana, Pluak Daeng and Wang Chan
- How many villages are in Ban Khai?112 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Ban Khai?Settlements lie between 7 m and 105 m
- How many reservoirs and tanks are in Ban Khai?4 named in GeoNames
- What is the highest point in Ban Khai?Khao Nguang Chang (693 m, GeoNames elevation model)
- What is the best time to visit Ban Khai?November to February
- How many hospitals are in Ban Khai?34 mapped
- How many banks are in Ban Khai?3 mapped
- How many ATMs are in Ban Khai?1 mapped
- How many petrol pumps are in Ban Khai?33 mapped
- What is the P-code of Ban Khai?TH2105 (OCHA common operational dataset)