# Bang Sai, Phra Nakhon Si Ayutthaya Province – Subdistricts

> Source: https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/

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 **42,665 people** in 2023 on 247 km² (about 173 per km²). It is divided into 23 subdistricts. 110 named villages and localities are recorded here, and 175 mapped services such as hospitals, banks and schools.

- 42,665people (2023)
- 247km²
- 23subdistricts
- 175mapped services

## How many people live in Bang Sai?

Bang Sai had an estimated **42,665 people** in 2023 — 4.1% of Phra Nakhon Si Ayutthaya Province, 437th of 928 districts. There are 1,006 women for every 1,000 men (below the Phra Nakhon Si Ayutthaya Province figure of 1,072). Spread over 247 km², that is about **173 people per km²**, 195th of 928 districts.

15.6% of people are children under 15 and 17.4% are 65 or older; the median age is about 43 years (it is 39 across Phra Nakhon Si Ayutthaya Province). For every 100 people of working age (15–64) there are 49 children and older people.

0–4 ****2,302**

5–9 ****2,166**

10–14 ****2,180**

15–19 ****2,255**

20–24 ****2,081**

25–29 ****2,657**

30–34 ****2,907**

35–39 ****2,834**

40–44 ****3,225**

45–49 ****3,516**

50–54 ****3,236**

55–59 ****3,158**

60–64 ****2,728**

65–69 ****2,547**

70–74 ****1,980**

75–79 ****1,329**

80+ ****1,564**

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 6 other districts: [Bang Ban](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-ban/), [Bang Pa-In](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-pa-in/), [Lat Bua Luang](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/lat-bua-luang/), [Phra Nakhon Si Ayutthaya](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/phra-nakhon-si-ayutthaya/), [Sam Khok](https://wherepedia.org/thailand/pathum-thani/sam-khok/) and [Sena](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/sena/). By area it is the 680th largest of 928 districts in Thailand. It covers 9.7% of [Phra Nakhon Si Ayutthaya Province](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/). The centre of Bang Sai is about 52 km in a straight line from Bangkok, the capital. It is about 18 km from Phra Nakhon Si Ayutthaya, the main town of Phra Nakhon Si Ayutthaya Province. The centre point is at 14.2205° N, 100.4752° E. Local names: บางไทร .

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 Bang Sai

Subdistrict Area km² Localities Services 

[Ban Klueng](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/ban-klueng/) 11 10 6 

[Ban Ko](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/ban-ko/) 7.1 3 6 

[Ban Ma](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/ban-ma/) 13 4 6 

[Ban Paeng](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/ban-paeng/) 8.4 4 3 

[Bang Phli](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/bang-phli/) 13 7 4 

[Bang Sai](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/bang-sai/) 19 10 32 

[Bang Yi Tho](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/bang-yi-tho/) 11 5 3 

[Chang Lek](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/chang-lek/) 7.0 2 3 

[Chang Noi](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/chang-noi/) 15 6 5 

[Chang Yai](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/chang-yai/) 6.4 1 11 

[Chiang Rak Noi](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/chiang-rak-noi/) 9.4 1 5 

[Ho Mok](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/ho-mok/) 11 6 8 

[Khae Ok](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/khae-ok/) 5.3 3 0 

[Khae Tok](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/khae-tok/) 9.2 5 2 

[Khok Chang](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/khok-chang/) 11 9 10 

[Kok Kaeo Burapha](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/kok-kaeo-burapha/) 11 3 1 

[Krachaeng](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/krachaeng/) 12 8 5 

[Mai Tra](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/mai-tra/) 19 15 27 

[Na Mai](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/na-mai/) 3.0 1 3 

[Phai Phra](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/phai-phra/) 14 6 2 

[Pho Taeng](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/pho-taeng/) 12 3 8 

[Ratchakhram](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/ratchakhram/) 9.5 7 19 

[Sanam Chai](https://wherepedia.org/thailand/phra-nakhon-si-ayutthaya/bang-sai-th1404/sanam-chai/) 7.3 8 6 

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 **110 villages, towns and localities** in Bang Sai. Settlements here lie between about 2 m and 17 m above sea level (median 7 m).

- Ban Ai Ngam (1)
- Ban Ai Waen
- Ban Bang Phli Nuea
- Ban Bang Phli Tai
- Ban Bang Sai
- Ban Bang Yi Tho
- Ban Bo Sakae
- Ban Bua Chom
- Ban Bua Khom
- Ban Chang
- Ban Chang Lek
- Ban Chang Noi
- Ban Chang Thong
- Ban Chang Yai
- Ban Chawat Khok
- Ban Don Taeng
- Ban Ho Mok
- Ban Hua Ban
- Ban Hua Khok
- Ban Hua Ko
- Ban Hua Ko Yai
- Ban Hua Wat
- Ban Huai Li
- Ban Khae Ok
- Ban Khae Tok
- Ban Khae Tok (1)
- Ban Khang Wat
- Ban Khanom Chin
- Ban Khlong Ban Nuea
- Ban Khlong Bang Kae
- Ban Khlong Kao
- Ban Khlong Khut
- Ban Khlong Lek
- Ban Khlong Phai Phra
- Ban Khlong Tan
- Ban Khlong Wua
- Ban Khok
- Ban Khok Chang
- Ban Khok Chang (1)
- Ban Khok Chang Lek
- Ban Khun Cha
- Ban Khwang
- Ban Klang
- Ban Klueng
- Ban Klung
- Ban Ko
- Ban Ko Klang
- Ban Ko Luang
- Ban Ko Yai
- Ban Kok Kaeo Burapha
- Ban Krachaeng
- Ban Krachaeng Nuea
- Ban Krachaeng Tai
- Ban Krasaeng Nuea
- Ban Lan The
- Ban Lao
- Ban Lat Sai
- Ban Ma
- Ban Mai
- Ban Mai Charoen Phon
- Ban Mai Tra
- Ban Na Mai
- Ban Na Wat
- Ban Nai
- Ban Nam Dam
- Ban Nam Mon
- Ban Nam Toei
- Ban Nong Kok
- Ban Nong Sarai
- Ban Nong Song Hong
- Ban Nong Suang
- Ban Nong Yai
- Ban Nuea Wat
- Ban Paeng
- Ban Paeng Tai
- Ban Pak Chawak
- Ban Pak Khlong
- Ban Pak Khwae
- Ban Pak Kran
- Ban Pak Kruan
- Ban Phaeng Loi
- Ban Phai Khot
- Ban Phai Phra
- Ban Phat
- Ban Pho Taeng Nuea
- Ban Pho Taeng Tai
- Ban Plai Khlong Kao
- Ban Rai
- Ban Ratchakhram
- Ban Rim Nam
- Ban Rong Luang
- Ban Rong Phai
- Ban Sam Ruean
- Ban Sam Yaek
- Ban Sanam Chai
- Ban Song Ton
- Ban Suan Mamuang
- Ban Tai
- Ban Talat Phaeng Loi
- Ban Tha Khwai
- Ban Tha Kwian
- Ban Tha Sung
- Ban Thai Wat
- Ban Thang Yao
- Ban Thong Khung
- Ban Thong Wang
- Ban Thung Si Pho
- Ban Wat Bot
- Ban Yan Ta Khiao
- 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).

## Landscape and landmarks of Bang Sai

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

### Water

8 rivers and streams.

- Lam Rang Bang Phli
- Lam Rang Bang Sai
- Lam Rang Khanom Chin
- Lam Rang Phai Phet
- Lam Rang Sai Yai
- Lam Rang Thang Thai
- Mae Nam Chao Phraya
- Mae Nam Noi

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 Bang Sai and the best time to visit

In Bang Sai, the warmest month is Apr (average 31 °C) and the coolest is Dec (25 °C). About 1,361 mm of rain falls in a year; the wettest month is Sep (278 mm) and the driest Dec (10 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 16 

Feb 29 14 

Mar 30 47 

Apr 31 75 

May 30 164 

Jun 28 165 

Jul 28 169 

Aug 28 181 

Sep 27 278 

Oct 27 203 

Nov 26 39 

Dec 25 10 

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.

- Hospitals29
- Banks3
- Petrol pumps2
- Hotels18
- Shopping malls1
- Schools12
- Colleges and universities1
- Restaurants103
- Police stations6

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?42,665 (2023 estimate)
- What is the median age in Bang Sai?About 43 years (2023 estimate)
- What is the population density of Bang Sai?About 173 people per km²
- What borders Bang Sai?Bang Ban, Bang Pa-In, Lat Bua Luang, Phra Nakhon Si Ayutthaya, Sam Khok and Sena
- How many villages are in Bang Sai?110 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Bang Sai?Settlements lie between 2 m and 17 m
- What is the best time to visit Bang Sai?November to January
- How many hospitals are in Bang Sai?29 mapped
- How many banks are in Bang Sai?3 mapped
- How many petrol pumps are in Bang Sai?2 mapped
- What is the P-code of Bang Sai?TH1404 (OCHA common operational dataset)