Upwind Report

Glyphosate use in Grant County, Wisconsin

Estimated farm glyphosate use in Grant County, Wisconsin was 201 pounds per square mile of county land in 2019, higher than 74% of US counties.

Map of Grant County, Wisconsin 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 land201lbTop 26% in the US
US
783rd of 3,060
Wisconsin
12th of 72
Per square mile of cropland251lb

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

Since 2000

Up from 50 in 2000 to 201 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
20005050
20016064
20026464
20038282
2004105105
20059292
2006110110
2007119124
2008220224
2009142142
2010165165
2011183183
2012197202
2013252252
2014211215
2015197197
2016247247
2017169169
2018270270
2019201201
See Grant 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 Grant County, Wisconsin 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.