Na Khu

Last updated: November 2026

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Area profile: Na Khu

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

Official land appraisal (municipal area)

Median appraisal

฿200 / sq. wah

Construction cost (province median)

People

30,126−2.8% since 2021

Gender split

Registered houses

10,783

Population density

139.9 people / km²

People per house

2.8

Environment

Air quality

Province-level reading (Kalasin)

PM2.5 annual mean

31.2 µg/m³

PM10 annual mean

51.9 µg/m³

Days exceeding PM2.5 standard

106

Days exceeding PM10 standard

0

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

Monthly PM2.5 (burning season)

Terrain & climate

Elevation range

275.3 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)

-27.5 m

Distance to nearest stream (10th percentile)

1,504.8 m

Terrain slope (90th percentile)

2%

Drought

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

Latest 3-month rainfall vs normal

79.9%

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

15.3%

Worst 3-month deficit (10y)

38.9%

Air quality

PM2.5 — OpenAQ

Reference-grade station

30.3 µg/m³

PM10 — OpenAQ

Reference-grade station

51.4 µg/m³

PM2.5 — Pollution Control Department

Annual mean

31.2 µg/m³

Days exceeding standard

106 days

PM10 — Pollution Control Department

Annual mean

51.9 µg/m³

Days exceeding standard

0 days

Amenities in Na Khu

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

1
Health
3
Services

Amenity data © OpenStreetMap contributors

Map of Na Khu

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Frequently asked about Na Khu

What's near Na Khu?

Na Khu has 1 hospital nearby, based on OpenStreetMap data. Nearby options include โรงพยาบาลนาคู.

What's the air quality like in Na Khu?

Na Khu's annual mean PM2.5 is 31.2 µg/m³, against a WHO guideline of 5 µg/m³ and a Thai standard of 15 µg/m³. Air quality is typically worst in April and March. This is a Province-level-level reading, not a station within the area itself.

Is Na Khu at risk of flooding?

Na Khu's flash-flood terrain susceptibility is Low.

What's the population of Na Khu?

Na Khu has a registered population of 30,126 (−2.8% since 2021).

What is the official land appraisal price in Na Khu?

The Treasury Department's official land appraisal for Na Khu (this subdistrict) is ฿200 per square wah (median) — an assessed value used for transfer fees and taxes, not a market price.

How bad is air pollution in Na Khu?

According to Thailand's Pollution Control Department, the annual mean PM2.5 level in Na Khu is 31.2 µg/m³.