Upwind Report

Glyphosate use in Marathon County, Wisconsin

Estimated farm glyphosate use in Marathon County, Wisconsin was 50 pounds per square mile of county land in 2019, higher than 50% of US counties.

Map of Marathon County, Wisconsin 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 land50lbTop 50% in the US
US
1,503rd of 3,060
Wisconsin
51st of 72
Per square mile of cropland80lb

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

Since 2000

Up from 29 in 2000 to 50 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
20002929
20014347
20022225
20032929
20045458
20056568
20066165
20077290
20085858
20097679
20105454
20118686
20127272
2013118118
20148686
2015150150
2016100100
2017107107
20186464
20195050
See Marathon 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 Marathon County, Wisconsin 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.