Upwind Report

Glyphosate use in Stanislaus County, California

Reported farm glyphosate use in Stanislaus County, California was 383 pounds per square mile of county land in 2019, higher than 88% of US counties.

Map of Stanislaus County, California and nearby counties, coloring each county's cropland by estimated farm glyphosate use per square mile of county land in 2019 reported use. Darker colors mean more use.

2019 numbers

Per square mile of county land383lbTop 12% in the US
US
343rd of 3,060
California
1st of 56
Per square mile of cropland737lb

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

Since 2000

Up from 94 in 2000 to 383 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
20009494
20017777
2002113113
2003127127
2004154154
2005152152
2006158158
2007189189
2008170170
2009224224
2010231231
2011274274
2012307307
2013305305
2014368368
2015380380
2016379379
2017365365
2018382382
2019383383
See Stanislaus 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.

California's numbers are the state's own reported use, which USGS uses in place of an estimate, so the low and high numbers are the same.

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 Stanislaus County, California 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.