Ban Khai

Last updated: November 2026

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Area profile: Ban Khai

Everything we know about this area, from official Thai government and open sources.

Official land appraisal (municipal area)

Median appraisal

฿500 / sq. wah

Construction cost (province median)

People

74,065+5.0% since 2021

Gender split

Registered houses

42,802

Population density

152.6 people / km²

People per house

1.7

Environment

Air quality

Province-level reading (Rayong)

PM2.5 annual mean

25.9 µg/m³

WHO guideline: 5 µg/m³ PM2.5 / 15 µg/m³ PM10. Thai standard: 15 µg/m³ PM2.5 / 50 µg/m³ PM10.

Terrain & climate

Elevation range

227.7 m

Flood exposure

Check a specific address on the flood history map

Flash-flood terrain susceptibility

Sinkhole susceptibility (DMR)

Not assessed by DMR — this area has not been surveyed for sinkhole susceptibility.

Height above nearest drainage (10th percentile)

-21.8 m

Distance to nearest stream (10th percentile)

1,263.6 m

Terrain slope (90th percentile)

1.8%

Drought

Rainfall deficit vs 1981–2010+ normal (CHIRPS) — a meteorological reading, not soil moisture, and not a forecast.

Latest 3-month rainfall vs normal

156.1%

Share of 10-day periods in deficit (10y)

18.1%

Worst 3-month deficit (10y)

25.9%

Air quality

PM2.5 — OpenAQ

Reference-grade station

25.9 µg/m³

Amenities in Ban Khai

What's within reach — shops, schools, transit and more.

7
Shopping
17
Education
3
Health
3
Leisure
18
Services
1
Nature
53
food

Amenity data © OpenStreetMap contributors

Projects in Ban Khai

Condos and developments in this area

Baan Warorose 15

Baan Warorose 15 is a condominium project located in Bang But, Ban Khai, Rayong. The development is situated in a quiet, local area suited to those seeking a home in Ban Khai district. Nearby, residents can visit the Giant Buddha attraction, about 7 minutes away, and Dokkrai Airstrip, about 29 minutes away. There is also 1 beach located nearby, along with 1 nearby hospital and 1 nearby market.

Baan Warorose 15
Censiri Campus

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Censiri Campus

Map of Ban Khai

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Frequently asked about Ban Khai

What's near Ban Khai?

Ban Khai has 1 hospital, 1 park, and 53 restaurants and cafés nearby, based on OpenStreetMap data. Nearby options include Bankhai Hospital.

What's the air quality like in Ban Khai?

Ban Khai's annual mean PM2.5 is 25.9 µg/m³, against a WHO guideline of 5 µg/m³ and a Thai standard of 15 µg/m³. This is a Province-level-level reading, not a station within the area itself.

Is Ban Khai at risk of flooding?

Ban Khai's flash-flood terrain susceptibility is Low.

What's the population of Ban Khai?

Ban Khai has a registered population of 74,065 (+5.0% since 2021).

What is the official land appraisal price in Ban Khai?

The Treasury Department's official land appraisal for Ban Khai (this subdistrict) is ฿500 per square wah (median) — an assessed value used for transfer fees and taxes, not a market price.

How bad is air pollution in Ban Khai?

According to OpenAQ reference-grade monitoring stations, the annual mean PM2.5 level in Ban Khai is 25.9 µg/m³.