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Airleaf
Aerial study of a dense urban district organized around a green corridor
All New Zealand reports

City report · New Zealand

Manukau City

Measured across a 2 km radius around Manukau City Centre, Auckland, New Zealand (12.57 km²)

Tree cover
29.7%
Air quality
52Moderate
Trees in this area
93.2K
More trees needed
942
Area analyzed
12.56 km²land, in a 12.57 km² circle
Satellite image
Mar 13, 2026
Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Mar 13, 2026

Manukau City's tree count comes to 93,212 trees across 12.56 km² of land — 0 points below the 30% tree-cover level considered healthy for this area, meaning roughly 942 more trees would close the gap. Air quality currently reads AQI 52 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.

Tree cover detail

Below target

29.7% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.

0 points below target

Trees in this area

93,212

Target trees

94,154

More trees needed

942

CO₂ if planted / yr

20.7 t

Air quality detail

AQI 52Moderate

Observed Sep 28, 22:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.

Model estimate · no ground station nearby

Health signal

Unusually sensitive people should consider limiting long outdoor exertion.

PM2.5

12.4

PM10

20.1

NO₂

3.7

O₃

45.0

SO₂

1.4

CO

68.0

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Manukau City tree cover and air quality — measured by Airleaf
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Frequently asked

Questions about Manukau City

What is the tree count in Manukau City?

Manukau City has an estimated 93,212 trees across the 12.56 km² of land measured — 29.7% tree cover, 0 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Manukau City need?

Manukau City needs roughly 942 more trees to close a 0-point shortfall against its 30% tree-cover target — about 20.7 t of extra CO₂ absorbed per year once grown.

What is the air quality (AQI) in Manukau City right now?

The latest reading for Manukau City shows an AQI of 52 (Moderate), observed Sep 28, 22:00 local time via Open-Meteo / CAMS, US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.

How is Manukau City's tree cover and air quality measured?

Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Manukau City Centre; the tree count is an estimate derived from that cover. Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors.

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Methodology. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search imagery at 10 m detail for the stated radius; the tree count is an estimate derived from that cover. Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors.