# Bang Sai (14.30° N, 100.30° E) – Subdistricts & Population

> Source: https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1413/

District · Phra Nakhon Si Ayutthaya Province 

# Bang Sai

Bang Sai is a district (amphoe) of Thailand in Phra Nakhon Si Ayutthaya Province. It had an estimated **12,067 people** in 2023 on 159 km² (about 76 per km²). Its main town is Bang Sai. It is divided into 6 subdistricts. 64 named villages and localities are recorded here, and 55 mapped services such as hospitals, banks and schools.

- 12,067people (2023)
- 159km²
- 6subdistricts
- 55mapped services

## How many people live in Bang Sai?

Bang Sai had an estimated **12,067 people** in 2023 — 1.2% of Phra Nakhon Si Ayutthaya Province, 879th of 928 districts. There are 1,037 women for every 1,000 men (below the Phra Nakhon Si Ayutthaya Province figure of 1,072). Spread over 159 km², that is about **76 people per km²**, 550th of 928 districts.

15.4% of people are children under 15 and 20.4% are 65 or older; the median age is about 45 years (it is 39 across Phra Nakhon Si Ayutthaya Province). For every 100 people of working age (15–64) there are 56 children and older people.

0–4 ****597**

5–9 ****631**

10–14 ****631**

15–19 ****609**

20–24 ****558**

25–29 ****632**

30–34 ****671**

35–39 ****803**

40–44 ****887**

45–49 ****906**

50–54 ****849**

55–59 ****975**

60–64 ****852**

65–69 ****832**

70–74 ****681**

75–79 ****455**

80+ ****498**

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 Bang Sai?

Bang Sai lies in [Phra Nakhon Si Ayutthaya Province](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/), [Thailand](https://wherepedia.org/thailand/). It borders 5 other districts: [Bang Pla Ma](https://wherepedia.org/thailand/suphan-buri/bang-pla-ma/), [Lat Bua Luang](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/lat-bua-luang/), [Phak Hai](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/phak-hai/), [Sena](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/sena/) and [Song Phi Nong](https://wherepedia.org/thailand/suphan-buri/song-phi-nong/). By area it is the 799th largest of 928 districts in Thailand. It covers 6.2% of [Phra Nakhon Si Ayutthaya Province](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/). The centre of Bang Sai is about 65 km in a straight line from Bangkok, the capital. It is about 30 km from Phra Nakhon Si Ayutthaya, the main town of Phra Nakhon Si Ayutthaya Province. The centre point is at 14.3046° N, 100.3013° E. Local names: บางซ้าย .

Source: [Royal Thai Survey Department via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-tha).

## Know before you go: Bang Sai

- Time zoneUTC+7, no daylight saving · Asia/Bangkok
- CurrencyBaht (THB)
- Country calling code+66
- LanguagesThai, English
- Plug typesType A, B, C, F · 220 V
- Driving sideLeft
- Postcode format5 digits (#####)

### Nearest airports

- Don Mueang International Airport (DMK) · Bangkok55 km
- Suvarnabhumi Airport (BKK) · Bangkok84 km

### Nearest railway station

Suphan Buri (Rua Yai), about 29 km from the centre.

### Daylight

Days are longest in Jun (about 13.0 hours, sunrise around 05:49) and shortest in Dec (about 11.3 hours, sunrise around 06:35, sunset around 17:52).

Source: [GeoNames country and time-zone files (CC BY 4.0)](https://www.geonames.org/); [Wikidata (CC0) — plug types, mains voltage, driving side; retrieved 2026-11-02](https://www.wikidata.org/); [OurAirports (public domain)](https://ourairports.com/data/).

Airports with scheduled passenger flights; straight-line distances. Daylight is calculated for the 15th of each month in local standard time. Check entry and visa rules with official government sources before travelling.

## Subdistricts of Bang Sai

Subdistrict Area km² Localities Services 

[Bang Sai](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1413/bang-sai/) 23 16 18 

[Kaeo Fa](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1413/kaeo-fa/) 14 6 10 

[Plai Klat](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1413/plai-klat/) 46 17 4 

[Tao Lao](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1413/tao-lao/) 18 11 6 

[Thep Mongkhon](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1413/thep-mongkhon/) 28 10 16 

[Wang Phatthana](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1413/wang-phatthana/) 30 11 1 

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 Bang Sai

Open gazetteers list **64 villages, towns and localities** in Bang Sai. Settlements here lie between about 3 m and 19 m above sea level (median 6 m).

- Ban Bang Sai
- Ban Bang Sai Nai
- Ban Bang Sai Nok
- Ban Bueng Krasang
- Ban Dap
- Ban Don Kai Thuan
- Ban Don Makluea
- Ban Don Phak Khom
- Ban Don Phatthana
- Ban Fai Mai
- Ban Hua Saphan
- Ban Kaeo Fa
- Ban Kamnan Wang
- Ban Khlong Kum
- Ban Khlong Na Wat
- Ban Khlong Rae
- Ban Khlong Tan
- Ban Khlong Yai Bua
- Ban Kho Suea
- Ban Khok Huai
- Ban Khok Kao Luk
- Ban Khok Ta Phrom
- Ban Lam Nai
- Ban Lam Pho Thong
- Ban Lam Wang Chan
- Ban Mu Lao
- Ban Mu Tan
- Ban Mu Yai
- Ban Na Wat
- Ban Nong Ai Baen
- Ban Nong Fueam
- Ban Nong Khot
- Ban Nong Mo Kaeng
- Ban Nong No
- Ban Nong Phang Phuai
- Ban Nong Phangphuai
- Ban Nong Sa
- Ban Nong Sano
- Ban Nong Sarai
- Ban Pak Bang
- Ban Phaeng Loi
- Ban Phai Farang
- Ban Phai Klat
- Ban Phai Lom
- Ban Phat Mon
- Ban Pho Thong
- Ban Phong Pheng
- Ban Plai Khlong
- Ban Plai Klat Nok
- Ban Rang Ai Thuem
- Ban Rang Chorakhe Yai
- Ban Rang Nuea Tai
- Ban Rang Sao Thong
- Ban Sai
- Ban Sam Phleng
- Ban Ta Kham
- Ban Tao Lao
- Ban Tha Kwian
- Ban Thai Wat
- Ban Thang Luang
- Ban Thep Mongkhon
- Ban Wang Chado
- Ban Wang Phatthana
- Bang Sai

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).

## Weather in Bang Sai and the best time to visit

In Bang Sai, the warmest month is Apr (average 32 °C) and the coolest is Dec (25 °C). About 1,205 mm of rain falls in a year; the wettest month is Sep (246 mm) and the driest Dec (8 mm). The most comfortable months for a visit are **November to January**.

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

Month Average °C Rain mm 

Jan 26 11 

Feb 29 10 

Mar 31 42 

Apr 32 65 

May 30 149 

Jun 29 139 

Jul 28 150 

Aug 28 157 

Sep 27 246 

Oct 27 192 

Nov 26 38 

Dec 25 8 

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

## Hospitals, banks and other services in Bang Sai

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

- Hospitals11
- Banks1
- Petrol pumps4
- Shopping malls1
- Schools13
- Pharmacies1
- Restaurants22
- Police stations2

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 Bang Sai?In Phra Nakhon Si Ayutthaya Province, Thailand
- What is the population of Bang Sai?12,067 (2023 estimate)
- What is the median age in Bang Sai?About 45 years (2023 estimate)
- What is the population density of Bang Sai?About 76 people per km²
- What borders Bang Sai?Bang Pla Ma, Lat Bua Luang, Phak Hai, Sena and Song Phi Nong
- What time zone is Bang Sai in?UTC+7
- What currency is used in Bang Sai?Baht (THB)
- What language is spoken in Bang Sai?Thai, English (main languages nationally)
- How many villages are in Bang Sai?64 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Bang Sai?Settlements lie between 3 m and 19 m
- What is the best time to visit Bang Sai?November to January
- How many hospitals are in Bang Sai?11 mapped
- How many banks are in Bang Sai?1 mapped
- How many petrol pumps are in Bang Sai?4 mapped
- What is the P-code of Bang Sai?TH1413 (OCHA common operational dataset)