Upwind Report

Glyphosate use in Spencer County, Indiana

Estimated farm glyphosate use in Spencer County, Indiana was 503 to 508 pounds per square mile of county land in 2019, higher than 96% of US counties.

Map of Spencer 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 land503 to 508lbTop 4% in the US
US
120th of 3,060
Indiana
16th of 92
Per square mile of cropland611 to 617lb

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

Since 2000

Up from 123 in 2000 to 508 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
2000123123
2001137137
2002147147
2003194194
2004185185
2005223223
2006232232
2007241241
2008293293
2009365369
2010317317
2011349349
2012297297
2013372372
2014348348
2015466466
2016423423
2017353353
2018343343
2019503508
See Spencer 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 Spencer 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.