Upwind Report

Glyphosate use in Sauk County, Wisconsin

Estimated farm glyphosate use in Sauk County, Wisconsin was 145 pounds per square mile of county land in 2019, higher than 67% of US counties.

Map of Sauk 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 land145lbTop 33% in the US
US
1,008th of 3,060
Wisconsin
28th of 72
Per square mile of cropland211lb

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

Since 2000

Up from 40 in 2000 to 145 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
20004040
20014747
20025555
20036767
20047979
20057175
20068383
20079498
2008161161
2009102102
2010114114
2011130130
2012154154
2013153153
2014130134
2015141141
2016184188
2017118122
2018188188
2019145145
See Sauk 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 Sauk 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.