Upwind Report

Glyphosate use in Cass County, North Dakota

Estimated farm glyphosate use in Cass County, North Dakota was 443 pounds per square mile of county land in 2019, higher than 92% of US counties.

Map of Cass County, North 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 land443lbTop 8% in the US
US
223rd of 3,060
North Dakota
3rd of 53
Per square mile of cropland457lb

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

Since 2000

Up from 78 in 2000 to 443 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
20007878
20014545
2002279285
2003279279
2004312312
2005301301
2006273273
2007289289
2008473473
2009445445
2010545545
2011578578
2012790790
2013605605
2014693699
2015494494
2016432432
2017532532
2018371377
2019443443
See Cass 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 Cass County, North 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.