Upwind Report

Glyphosate use in Jefferson County, Idaho

Estimated farm glyphosate use in Jefferson County, Idaho was 34 to 59 pounds per square mile of county land in 2019, higher than 52% of US counties.

Map of Jefferson County, Idaho 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 land34 to 59lbTop 48% in the US
US
1,439th of 3,060
Idaho
10th of 44
Per square mile of cropland80 to 137lb

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

Since 2000

Up from 7.3 in 2000 to 59 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
20007.37.3
200102.4
200200
20033434
20047.37.3
20052.44.9
20062224
20074.94.9
20082727
200902.4
20104.94.9
20114949
20127.37.3
20139.89.8
20142727
20153434
20163434
20179.89.8
20182225
20193459
See Jefferson 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 Jefferson County, Idaho 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.