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AirHistory

What Is the Air Quality in Crow Wing, Minnesota?

Crow Wing, Minnesota has an Air Quality Grade of C (fair) with a 5-year median AQI of 36. The dominant pollutant is Fine Particulate Matter (PM2.5), and air quality has been worsening over the past decade.

Crow Wing, Minnesota Air Quality Snapshot

Air Quality GradeC62/100
5-Year Median AQI36 (Good)
Most Recent Median AQI (2023)43 (Good)
Dominant PollutantFine Particulate Matter (PM2.5)
10-Year TrendWorsening (+0.44 AQI/yr)
Unhealthy Days (last 5 yr)15
National Rank (cleanest = #1)#257 of 1,020 (25th cleanest percentile)
Minnesota Rank#8 of 21

What Does the C Grade Mean?

Crow Wing, Minnesota earns a C — air quality is fair, but not great. With a 5-year median AQI of 36, the city sees a meaningful number of "Moderate" days each year, when the EPA flags air as a concern for unusually sensitive people.

Crow Wing, Minnesota's 5-year median AQI of 36 is 5 points below the national average of 41 — meaningfully cleaner than the typical U.S. metro tracked here. Within Minnesota, Crow Wing, Minnesota's air quality is roughly typical for the state, where the average city posts a 5-year median AQI of 36.

For context within Minnesota: Cook, Minnesota currently holds the state's cleanest grade (A, AQI 12), while Cass, Minnesota sits at the bottom (C, AQI 32).

What's in Crow Wing, Minnesota's Air?

The dominant pollutant in Crow Wing, Minnesota is Fine Particulate Matter (PM2.5). Fine particulate matter — particles less than 2.5 micrometers across — comes mostly from combustion: vehicle exhaust, wildfire smoke, residential wood burning, and industrial emissions. Because these particles are small enough to enter the bloodstream, PM2.5 is the pollutant most strongly linked to cardiovascular disease, respiratory illness, and premature death.

Days by Dominant Pollutant (2023)

PollutantDays as DominantShare of Year
Fine Particulate Matter (PM2.5)23364%
Ground-Level Ozone13236%

Is the Air Getting Better or Worse?

Air quality in Crow Wing, Minnesota has been getting worse over the past decade, with median AQI climbing by roughly 0.4 points per year. That bucks the national trend of broad improvement, and most often reflects either growing wildfire smoke exposure (particularly across the West) or rising local emissions from population and freight growth.

In 2014, Crow Wing, Minnesota posted a median AQI of 35. By 2023 that figure was 43 — a rise of 8 AQI points dirtier across 10 years of EPA records.

Year-by-Year AQI in Crow Wing, Minnesota

YearMedian AQIGood DaysUnhealthy DaysDominant Pollutant
2014353090PM2.5
2015372992PM2.5
2016343130PM2.5
2017343060PM2.5
2018322921PM2.5
2019313241PM2.5
2020313380PM2.5
2021362895Ozone
2022373240Ozone
2023432449PM2.5

Health Context for Crow Wing, Minnesota

Across the past five years, this area has logged just 15 days where AQI rose into the "Unhealthy for Sensitive Groups" range or worse — about 3 days per year, or roughly one every other month. That is a low count by national standards.

Healthy adults can continue normal outdoor activity in most weather, but should pay attention to AQI alerts during the worst pollution windows. People with asthma, heart disease, or pregnancy should reduce prolonged or intense outdoor exertion on flagged days, and consider running an indoor HEPA air cleaner during peak season. Because PM2.5 penetrates deep into the lungs and bloodstream, an N95 or KN95 mask provides meaningful protection on smoky or high-particulate days — surgical masks do not.

How This Grade Is Calculated

The AirHistory Air Quality Grade combines four signals: the 5-year median AQI (40% of the score), the 10-year trend direction (30%), the count of unhealthy days per year (20%), and the dominant pollutant type (10%). All four come directly from the EPA Air Quality System (AQS), which aggregates readings from federally certified monitors. Read the full methodology.

Crow Wing, Minnesota has an Air Quality Grade of C (fair) with a 5-year median AQI of 36. The dominant pollutant is Fine Particulate Matter (PM2.5), and air quality has been worsening over the past decade.

The data source behind this answer is the EPA Air Quality System (AQS). Every figure on the page traces back to that source; the methodology page describes the inputs and the refresh cadence in full detail.

For readers turning this answer into action: cross-reference against the underlying the EPA Air Quality System (AQS) record before acting on time-sensitive decisions. The site renders the data as it was published; subsequent revisions can shift the picture, and the live federal data is always the authoritative current reference.

Source: EPA Outdoor Air Quality Data, 2026.