Upwind Report

Glyphosate use in Glacier County, Montana

Estimated farm glyphosate use in Glacier County, Montana was 108 pounds per square mile of county land in 2019, higher than 61% of US counties.

Map of Glacier County, Montana and nearby counties, coloring each county's cropland by estimated farm glyphosate use per square mile of county land in the 2019 high estimate. Darker colors mean more use.

2019 numbers

Per square mile of county land108lbTop 39% in the US
US
1,176th of 3,060
Montana
13th of 56
Per square mile of cropland417lb

Ranks are by use per square mile of county land, on the 2019 high estimate, among US counties with a value. Counties with the same value share a rank.

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A picture of Glacier County against the US county median, with the source, to post or send.

Since 2000

Up from 20 in 2000 to 108 in 2019. Pounds per square mile of county land, high estimate.

Every year's numbers
Glyphosate per square mile of county land by year, in pounds
YearLowHigh
20001820
20012424
20023334
20032728
20042122
20053840
20064547
20076565
20086161
20096060
20105657
20116363
20129697
20136666
20147979
20159090
2016106106
20178282
2018108108
2019108108
See Glacier County on the map

About these numbers

The main number is the county's estimated farm glyphosate use for the year divided by all of its land, water left out. A county with a little farmland can use a lot per square mile of cropland and still have far less in total than a county with more farmland, so the whole-county number is the one the map colors, ranks and compares.

These are county estimates, not records. They don't show which fields were sprayed or how much any one field got.

USGS makes a low and a high estimate, which fill in use that farms didn't report in different ways.

Per square mile of cropland is the same total spread evenly over the county's cropland only, so it's higher than the whole-county number wherever only part of Glacier County, Montana is farmland.

Numbers are in pounds per square mile. The source gives kilograms per square kilometer, and 1 kg per km² is about 5.7 pounds per square mile.

Source: Hengl & Brungard from USGS county estimates, 2000–2019 (CC BY 4.0). Land area: US Census Bureau, 2020.

This page shows estimated farm use only. It says nothing about health and is not medical advice.