Upwind Report

Glyphosate use in Carroll County, Indiana

Estimated farm glyphosate use in Carroll County, Indiana was 421 pounds per square mile of county land in 2019, higher than 91% of US counties.

Map of Carroll County, Indiana 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 land421lbTop 9% in the US
US
271st of 3,060
Indiana
32nd of 92
Per square mile of cropland445lb

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

Since 2000

Up from 195 in 2000 to 421 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
2000195195
2001200200
2002254254
2003200200
2004238238
2005238238
2006281281
2007265265
2008363363
2009330336
2010374379
2011362362
2012438438
2013476476
2014578578
2015389389
2016497497
2017465465
2018405411
2019421421
See Carroll 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 Carroll County, Indiana 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.