City report · Washington, United States
Renton Air quality today
Air quality in Renton currently reads AQI 27 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 27
Good
- PM2.5, fine particles (µg/m³)
- 4.8
- tree cover
- 32.1%
- trees in this area
- 101K
- more trees needed
- 0
Measured across a 1.2 mi (2 km) radius around Renton, WA, USA (4.9 sq mi), from a satellite image of Sep 8, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Renton · AQI 27 (Good)
Renton's tree count comes to 100,543 trees across 4.8 sq mi (12.53 km²) of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Renton today: AQI 27, Good
Main pollutant: PM2.5 · Observed Nov 11, 05:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · South Park, Seattle, Washington, USA, 5.8 mi (9.4 km) away
Health signal
Air quality is satisfactory for everyone.
PM2.5
4.8
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Washington State Department of Ecology, Air Now - US EPA
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Renton's daily AQI at 48 on average, from 22 on Nov 10 to an hourly peak of 83 on Nov 4.
Where Renton stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Renton: Healthy tree cover
32.1% tree cover against a 30% healthy-neighborhood target, across 4.8 sq mi (12.53 km²) of land.
Trees in this area
100,543
Target trees
100,543
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Renton lost?
Since 2001, the area within 10 km of Renton has lost about 1,990 acres (805 hectares) of forest (about 1,500 football fields): 7.6% of the forest it had in 2000. Most of it (97%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 1,990 acres (805 ha)about 1,500 football fields
- Share of its forest
- 7.6%of what there was in 2000
- Cleared for good
- 1,930 acres (779 ha)deforestation: turned into farms, mines or towns
The worst year was 2004, when about 150 acres (61 hectares) of forest were lost.
Acres of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 97 acres (39 ha) | 2 acres (1 ha) | 100 acres (40 ha) |
| 2002 | 127 acres (51 ha) | under 1 ha | 128 acres (52 ha) |
| 2003 | 100 acres (41 ha) | under 1 ha | 102 acres (41 ha) |
| 2004 | 148 acres (60 ha) | under 1 ha | 150 acres (61 ha) |
| 2005 | 127 acres (51 ha) | 4 acres (2 ha) | 131 acres (53 ha) |
| 2006 | 144 acres (58 ha) | 2 acres (1 ha) | 146 acres (59 ha) |
| 2007 | 64 acres (26 ha) | under 1 ha | 65 acres (26 ha) |
| 2008 | 95 acres (38 ha) | 3 acres (1 ha) | 98 acres (40 ha) |
| 2009 | 37 acres (15 ha) | under 1 ha | 39 acres (16 ha) |
| 2010 | 13 acres (5 ha) | under 1 ha | 14 acres (6 ha) |
| 2011 | 29 acres (12 ha) | 7 acres (3 ha) | 36 acres (15 ha) |
| 2012 | 82 acres (33 ha) | 4 acres (2 ha) | 86 acres (35 ha) |
| 2013 | 48 acres (20 ha) | under 1 ha | 48 acres (20 ha) |
| 2014 | 87 acres (35 ha) | under 1 ha | 89 acres (36 ha) |
| 2015 | 63 acres (25 ha) | 3 acres (1 ha) | 66 acres (27 ha) |
| 2016 | 77 acres (31 ha) | under 1 ha | 78 acres (32 ha) |
| 2017 | 100 acres (41 ha) | 3 acres (1 ha) | 104 acres (42 ha) |
| 2018 | 105 acres (43 ha) | under 1 ha | 106 acres (43 ha) |
| 2019 | 39 acres (16 ha) | under 1 ha | 41 acres (17 ha) |
| 2020 | 35 acres (14 ha) | under 1 ha | 36 acres (15 ha) |
| 2021 | 80 acres (32 ha) | under 1 ha | 81 acres (33 ha) |
| 2022 | 87 acres (35 ha) | 15 acres (6 ha) | 102 acres (41 ha) |
| 2023 | 48 acres (20 ha) | under 1 ha | 49 acres (20 ha) |
| 2024 | 32 acres (13 ha) | under 1 ha | 32 acres (13 ha) |
| 2025 | 63 acres (25 ha) | under 1 ha | 63 acres (26 ha) |
What is causing deforestation around Renton?
- Towns and roadscleared for good96% · 1,900 acres (770 ha)
- Loggingcan grow back1.6% · 31 acres (13 ha)
- Farms, pasture and plantationscleared for good1.2% · 24 acres (10 ha)
Also: unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 45,300 acres (18,400 ha)
- Forest in 2020
- 45,900 acres (18,600 ha)
- Overall change
- +539 acres (218 ha)more forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Renton stayed about the same size, at about 45,900 acres (18,600 hectares): new forest grew on about 1,450 acres (587 hectares), and about 912 acres (369 hectares) were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Renton
Same 2 km radius, same index — so they compare directly.
- Bellevue14.2 km
United States
- Tree cover
- 49%
- Air quality
- 6
- Seattle16.2 km
United States
- Tree cover
- 14%
- Air quality
- 27
- Tacoma30.8 km
United States
- Tree cover
- 19%
- Air quality
- 38
- Everett55.2 km
United States
- Tree cover
- 23%
- Air quality
- 22
- Victoria135.5 km
Canada
- Tree cover
- 36%
- Air quality
- 36
- Saanich141.0 km
Canada
- Tree cover
- 47%
- Air quality
- 36
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Frequently asked
Questions about Renton
What is the air quality (AQI) in Renton right now?
The latest reading for Renton shows an AQI of 27 (Good), measured Nov 11, 05:00 local time by the South Park, Seattle, Washington, USA ground monitoring station, 5.8 mi (9.4 km) away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Renton today?
At AQI 27 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Renton been like this week?
Over the last 7 days, the CAMS air-quality model put Renton's daily AQI at 48 on average, from 22 on Nov 10 to an hourly peak of 83 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Renton lost since 2001?
Since 2001, the area within 10 km of Renton has lost about 1,990 acres (805 hectares) of forest (about 1,500 football fields): 7.6% of the forest it had in 2000. Most of it (97%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Renton stayed about the same size, at about 45,900 acres (18,600 hectares): new forest grew on about 1,450 acres (587 hectares), and about 912 acres (369 hectares) were lost.
What is the tree count in Renton?
Renton has an estimated 100,543 trees across the 4.8 sq mi (12.53 km²) of land measured — 32.1% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Renton need?
Renton has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Renton's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Renton, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 1.2 mi (2 km) radius around Renton; the tree count is an estimate derived from that cover.
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