Upwind Report

Glyphosate use in Buffalo County, South Dakota

Estimated farm glyphosate use in Buffalo County, South Dakota was 158 pounds per square mile of county land in 2019, higher than 68% of US counties.

Map of Buffalo 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 land158lbTop 32% in the US
US
958th of 3,060
South Dakota
43rd of 66
Per square mile of cropland428lb

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

Since 2000

Up from 38 in 2000 to 158 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
20003838
20019193
20023333
20034852
20045959
20056468
20066870
20077474
20088993
20099797
2010118118
2011145147
2012160162
2013186188
2014120120
2015223223
2016186186
2017183185
2018137139
2019158158
See Buffalo 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 Buffalo 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.