Upwind Report

Glyphosate use in Grant County, South Dakota

Estimated farm glyphosate use in Grant County, South Dakota was 227 to 232 pounds per square mile of county land in 2019, higher than 77% of US counties.

Map of Grant County, South Dakota 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 land227 to 232lbTop 23% in the US
US
691st of 3,060
South Dakota
30th of 66
Per square mile of cropland268 to 274lb

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 83 in 2000 to 232 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
20008383
2001133133
2002147147
2003147147
2004230235
2005208208
2006204204
2007243243
2008304309
2009359369
2010504504
2011367367
2012355360
2013370374
2014400404
2015299304
2016372372
2017382382
2018348353
2019227232
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, South Dakota 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.