Upwind Report

Glyphosate use in Sheridan County, Montana

Estimated farm glyphosate use in Sheridan County, Montana was 255 pounds per square mile of county land in 2019, higher than 79% of US counties.

Map of Sheridan 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 land255lbTop 21% in the US
US
632nd of 3,060
Montana
7th of 56
Per square mile of cropland383lb

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 Sheridan County against the US county median, with the source, to post or send.

Since 2000

Up from 21 in 2000 to 255 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
20002121
20012427
20021417
20033131
20043838
20056265
20066262
20077676
20085559
20097777
2010150150
2011101101
2012142142
2013117117
2014168168
2015218218
2016268268
2017167167
2018190190
2019255255
See Sheridan 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 Sheridan 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.