Metro area air quality · 2025

Gardnerville Ranchos, NV

Median AQI 22 (Good). 91.1% of monitored days rated Good across this metro's EPA monitoring network.

Compiled by PlainAirData · August 23, 2026

22
Median AQI: 91.1%
Good-air days: 0
Unhealthy days: 88%
Cleaner than US metros

Gardnerville Ranchos, NV posted a 2025 median AQI of 22 (Good) with 91.1% Good days

According to the U.S. EPA Air Quality System, the Gardnerville Ranchos, NV CBSA recorded a median AQI of 22 across 358 monitored days in 2025, with 91.1% rated Good and 0 unhealthy or worse. This is an annual metro comparison, not a live advisory.

Data source EPA Air Quality System (AQS)

Cleaner than US metros: The Gardnerville Ranchos, NV CBSA's 91.1% Good-day share places it cleaner than 88% of US metros in 2025.
Closest median-AQI peer: Aberdeen, WA (97.3% Good, median AQI 22) is the closest nationwide median-AQI peer to Gardnerville Ranchos, NV.
2020–2025 Good-day shift: Gardnerville Ranchos, NV's Good-day share moved +10.7 points from 2020 to 2025 (median AQI +0).
Median AQI: Median AQI: 22

Aggregated from EPA Air Quality System (2025), 358 monitored days. EPA AQS →

The verdict

The Gardnerville Ranchos, NV metro runs good on the EPA scale, cleaner than most US metros, a median AQI of 22 with 91.1% of 358 monitored days in the Good band.

22
median AQI · Good: 91.1%
days rated Good: 88%
cleaner than US metros: 63
worst single reading

No day crossed into the Unhealthy tier across the metro's monitors in 2025.

Gardnerville Ranchos, NV metro's peak single-day AQI fell from 76 to 63 between the 2024 and 2025 EPA annual releases, a change of -13 points.
Gardnerville Ranchos, NV metro's Good-day share rose from 90.1% to 91.1% between the 2024 and 2025 EPA annual releases, a change of +1.0 percentage points.

Insights: Gardnerville Ranchos, NV metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 22 over 358 measured days in 2025, which corresponds to a Good band and a Excellent metro-wide health grade. The monitored-day split lands at 326 Good days (91%), 32 Moderate (9%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 50 while the highest single-day reading hit 63 (Moderate). Metro residents averaged roughly 27.3 clean-air days per 30-day window across the reporting year.

Across the 2020–2025 trend window, the share of monitored days rated Good shifted by +10.7 points and the median AQI moved +0 points, which classifies the multi-year trajectory as improving. The metro recorded no Unhealthy-tier days in this annual dataset. Metros with comparable AQI profiles include Aberdeen, WA (97.3% good, AQI 22); Bremerton-Silverdale, WA (95.5% good, AQI 22); Longview, WA (90.4% good, AQI 22).

Air Quality Summary

Median AQI

Good

Good Days

91.1%

326 of 358 days

Max AQI

Moderate

Health Grade

Excellent

90th pct: 50

AQI Day Breakdown (2025)

Distribution of 358 monitored days across EPA AQI categories.

Good

326

91%

Moderate

USG

Unhealthy

Very Unhealthy

Hazardous

Health Impact Assessment

Excellent

The Gardnerville Ranchos, NV metro area's air quality is rated Excellent based on 91.1% good air days. No unhealthy air days were recorded in 2025.

Air quality is generally acceptable. Unusually sensitive people should monitor real-time conditions at AirNow.gov during high-pollution events.

How does the Gardnerville Ranchos, NV metro compare?

How Gardnerville Ranchos, NV compares

Compare against

Good-day share better than typical

Gardnerville Ranchos, NV 91.1%

Aberdeen, WA 97.3%

Typical US metro 70.6%

Median AQI better than typical

Gardnerville Ranchos, NV 22

Aberdeen, WA 22

Typical US metro 41

Unhealthy days / yr better than typical

Gardnerville Ranchos, NV 0

Aberdeen, WA 0

Typical US metro 1

5-Year Air Quality Trend

Air quality is improving in the Gardnerville Ranchos, NV metro. Highest Good-day share: 2025 (91.1%, 326 of 358 monitored days).

Year	Good	Moderate	Unhealthy	Median AQI	Max AQI
2020	286	63	7	22	274
2021	279	53	20	24	279
2022	295	55	5	20	195
2023	296	63	0	28	73
2024	308	34	0	22	76
2025	326	32	0	22	63

Metros with a similar median AQI

CBSA peers nationwide whose annual median AQI sits near Gardnerville Ranchos, NV (22).

Aberdeen, WA

Median AQI 22 · 97.3% Good-day share

Bremerton-Silverdale, WA

Median AQI 22 · 95.5% Good-day share

Longview, WA

Median AQI 22 · 90.4% Good-day share

Steamboat Springs, CO

Median AQI 22 · 93.7% Good-day share

Bend-Redmond, OR

Median AQI 23 · 89.3% Good-day share

Cañon City, CO

Median AQI 23 · 93.4% Good-day share

Metros with similar unhealthy-day exposure

A second relationship type: metros whose unhealthy-or-worse day count is closest to Gardnerville Ranchos, NV's 0 (independent of median AQI).

Aberdeen, SD

0 unhealthy-or-worse days · median AQI 27

Adrian, MI

0 unhealthy-or-worse days · median AQI 41

Akron, OH

0 unhealthy-or-worse days · median AQI 45

Albany, GA

0 unhealthy-or-worse days · median AQI 46

Albany, OR

0 unhealthy-or-worse days · median AQI 27

Albany-Schenectady-Troy, NY

0 unhealthy-or-worse days · median AQI 41

More Air Quality Data

Explore EPA air quality rankings and guides across U.S. metros and counties.

Cleanest Metro Areas

U.S. metros ranked by their share of Good air-quality days.

Worst Air Quality

Counties and metros with the most unhealthy air days.

All Metro Areas

Annual AQI by CBSA for every monitored U.S. metro area.

Best and Worst City Air

What drives urban air quality and how metro areas compare.

Air Quality Guides

Frequently Asked Questions

What is the air quality in the Gardnerville Ranchos, NV metro area? ▼

The Gardnerville Ranchos, NV metro area has a median Air Quality Index (AQI) of 22, rated "Good." 91.1% of monitored days (326 out of 358) had good air quality in 2025.

How many unhealthy air days does Gardnerville Ranchos, NV have? ▼

In 2025, the Gardnerville Ranchos, NV metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 63.

Is air quality in Gardnerville Ranchos, NV getting better or worse? ▼

Air quality in the Gardnerville Ranchos, NV metro is improving across floor-qualifying years (2020-2025); years with fewer than 100 monitored days are excluded from that direction. Highest qualifying Good-day share: 2025 at 91.1% (326 of 358 days). Lowest qualifying Good-day share: 2021 at 79.3% (279 of 352 days).

What does AQI 22 mean for health? ▼

An AQI of 22 is "Good", air quality is satisfactory and poses little or no health risk. This is the best category on the EPA's AQI scale.

What is the 90th percentile AQI for Gardnerville Ranchos, NV? ▼

The 90th percentile AQI for the Gardnerville Ranchos, NV metro area is 50, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 63 (Moderate).

How does Gardnerville Ranchos, NV compare to other metro areas? ▼

The Gardnerville Ranchos, NV metro has 91.1% good air days. Similar metros: Aberdeen, WA (97.3% good), Bremerton-Silverdale, WA (95.5% good), Longview, WA (90.4% good).

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset, 2020–2025. See our methodology for how AQI, median, and coverage figures are computed.

Read our methodology , how this data is sourced, computed, and verified.

Source: U.S. EPA Air Quality System (AQS) Annual AQI by CBSA summary files (metro-level) · 2020–2025 Accessed 2026-07-06

Send the source-year summary or download its ready-to-use data card.

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Every figure on PlainAirData is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.