Upwind Report

Glyphosate use in Sedgwick County, Colorado

Estimated farm glyphosate use in Sedgwick County, Colorado was 387 to 394 pounds per square mile of county land in 2019, higher than 89% of US counties.

Map of Sedgwick County, Colorado 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 land387 to 394lbTop 11% in the US
US
320th of 3,060
Colorado
2nd of 63
Per square mile of cropland582 to 594lb

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

Since 2000

Up from 38 in 2000 to 394 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
20013034
20023030
20038083
2004117121
20053838
200698102
2007181181
2008109109
2009174174
2010253253
2011215215
2012257261
2013283291
2014321325
2015352352
2016307307
2017254261
2018201208
2019387394
See Sedgwick 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 Sedgwick County, Colorado 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.