Upwind Report

Glyphosate use in Kingfisher County, Oklahoma

Estimated farm glyphosate use in Kingfisher County, Oklahoma was 38 pounds per square mile of county land in 2019, lower than 52% of US counties.

Map of Kingfisher County, Oklahoma 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 land38lb
US
1,618th of 3,060
Oklahoma
23rd of 77
Per square mile of cropland51lb

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

Since 2000

Up from 4.1 in 2000 to 38 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
20004.14.1
20014.14.1
200204.1
200304.1
20044.125
20054.14.1
20064.18.2
20074.14.1
20081725
20092529
20102529
20112529
20122121
20133333
2014200205
20156767
20164246
20176767
20185559
20193838
See Kingfisher 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 Kingfisher County, Oklahoma 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.