Just days after officials in Sioux Falls announced plans to begin seasonal spraying for mosquitos throughout the city, we're now getting a better idea of just how bad the problem is.

But it's not just Sioux Falls.

It turns out that the entire state of South Dakota is one of the worst places in America for mosquitos.

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A new study from Insuranks has the Mount Rushmore State third overall, behind Louisiana and Florida, as the most mosquito-prone states in the country.


  1. Louisiana
  2. Florida
  3. South Dakota
  4. New York
  5. Texas
  6. Delaware
  7. Nebraska
  8. Georgia
  9. Alabama
  10. North Dakota

If you're looking to blame our hotter, more humid summer weather, don't.

South Dakota's average May-July temperatures (65.9 degrees) are the third lowest among the top ten states (behind North Dakota and New York) and the average amount of rainfall during those months (8.54 inches) is also the third lowest in the top ten (behind Texas and Nebraska).

What propels South Dakota into the top three nationally are exceptionally high rankings in two categories.

The state had the second most mosquito-borne West Nile Virus cases (66) in America in 2022 (behind New York).

South Dakotans also are obsessed with finding out everything there is to know about the 'small flies' in the Culicidae family. The 2,225 Google searches for mosquitos in 2022 were the third most in the country (behind North Dakota and Delaware).

Meanwhile, mosquitos are apparently not an issue in Michigan.

The study found that the Wolverine State is only home to five different species of mosquitos and didn't record a single West Nile Virus case in 2022.

Nevada and Alaska didn't see any cases either.


  1. Michigan
  2. Nevada
  3. Washington
  4. Oregon
  5. Utah
  6. Idaho
  7. Alaska
  8. Massachusetts
  9. Tennessee
  10. Kansas

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