GIS Map
RankingsOklahomaWorst drought

Counties in the Worst Drought in Oklahoma

The top 25 of 77 Oklahoma counties on GIS Map, ranked by the Drought Severity and Coverage Index (0-500), where 500 means the entire county is in exceptional drought.

#CountyDrought Severity Index
1Dewey County
500.0
2Jackson County
499.8
3Tillman County
492.8
4Grady County
490.9
5Canadian County
483.0
6Roger Mills County
474.7
7Custer County
472.8
8Greer County
464.6
9Major County
463.6
10Kiowa County
462.6
11Blaine County
461.1
12Beckham County
451.8
13Kingfisher County
445.9
14Caddo County
439.6
15Sequoyah County
437.0
16Washita County
421.3
17Stephens County
406.8
18Comanche County
405.5
19Logan County
402.5
20Oklahoma County
402.4
21Choctaw County
400.0
22Delaware County
394.4
23Harmon County
393.2
24Cleveland County
388.6
25Lincoln County
386.1

Source: U.S. Drought Monitor (13 October 2026). All counties with data are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Counties in the Worst Drought in Oklahoma”, https://gismap.land/rankings/oklahoma/worst-drought-counties. Figures from U.S. Drought Monitor (13 October 2026).

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