Indiana mosquito forecast, by town

A daily mosquito bite-risk score for all 566 Indiana towns, grouped by their 92 counties. Mosquito pressure is local, so pick your town for today's number, a 7-day outlook, and what's driving it.

Adams County · 4 towns

Allen County · 7 towns

Bartholomew County · 6 towns

Benton County · 6 towns

Blackford County · 3 towns

Boone County · 7 towns

Brown County · 1 towns

Carroll County · 5 towns

Cass County · 5 towns

Clark County · 6 towns

Clay County · 7 towns

Clinton County · 6 towns

Crawford County · 5 towns

Daviess County · 7 towns

Dearborn County · 7 towns

Decatur County · 5 towns

DeKalb County · 8 towns

Delaware County · 7 towns

Dubois County · 5 towns

Elkhart County · 7 towns

Fayette County · 1 towns

Floyd County · 3 towns

Fountain County · 8 towns

Franklin County · 5 towns

Fulton County · 4 towns

Gibson County · 10 towns

Grant County · 10 towns

Greene County · 7 towns

Hamilton County · 8 towns

Hancock County · 8 towns

Harrison County · 9 towns

Hendricks County · 11 towns

Henry County · 15 towns

Howard County · 3 towns

Huntington County · 6 towns

Jackson County · 4 towns

Jasper County · 4 towns

Jay County · 6 towns

Jefferson County · 4 towns

Jennings County · 2 towns

Johnson County · 8 towns

Knox County · 9 towns

Kosciusko County · 13 towns

LaGrange County · 3 towns

Lake County · 19 towns

LaPorte County · 11 towns

Lawrence County · 3 towns

Madison County · 15 towns

Marion County · 15 towns

Marshall County · 6 towns

Martin County · 3 towns

Miami County · 6 towns

Monroe County · 3 towns

Montgomery County · 11 towns

Morgan County · 7 towns

Newton County · 5 towns

Noble County · 7 towns

Ohio County · 1 towns

Orange County · 4 towns

Owen County · 2 towns

Parke County · 6 towns

Perry County · 3 towns

Pike County · 3 towns

Porter County · 11 towns

Posey County · 5 towns

Pulaski County · 4 towns

Putnam County · 6 towns

Randolph County · 9 towns

Ripley County · 7 towns

Rush County · 3 towns

Scott County · 2 towns

Shelby County · 3 towns

Spencer County · 7 towns

St. Joseph County · 9 towns

Starke County · 3 towns

Steuben County · 6 towns

Sullivan County · 7 towns

Switzerland County · 2 towns

Tippecanoe County · 6 towns

Tipton County · 4 towns

Union County · 2 towns

Vanderburgh County · 2 towns

Vermillion County · 7 towns

Vigo County · 4 towns

Wabash County · 5 towns

Warren County · 4 towns

Warrick County · 6 towns

Washington County · 6 towns

Wayne County · 14 towns

Wells County · 6 towns

White County · 7 towns

Whitley County · 4 towns

Indiana mosquito questions

What kinds of mosquitoes live in Indiana?
Indiana has floodwater mosquitoes (the dominant summer nuisance biter, which surges after heavy rain), the Asian tiger mosquito (a daytime biter that breeds in yard containers), the house mosquito (the main West Nile carrier), and swamp and cattail-marsh mosquitoes tied to the EEE cycle. Which ones dominate a given town depends on its local breeding habitat.
When does mosquito season start and end in Indiana?
In Indiana, mosquito numbers build from about mid-June, peak in mid-to-late summer, and fade with the first cool nights of fall. Biting largely stops once temperatures drop below about 50°F, and a hard freeze ends the season.
Is West Nile or EEE a risk in Indiana?
Both West Nile virus and Eastern equine encephalitis occur in the region, but human cases are rare. West Nile risk peaks in late-summer heat and tracks the house mosquito in developed areas; EEE rises after mid-July in swampy areas. For confirmed local activity, check the Indiana health department's arbovirus surveillance.
How do I keep mosquitoes out of my yard in Indiana?
The single biggest thing you control is standing water: empty anything that holds it, keep gutters clear, and change bird baths weekly. Use EPA-registered repellent at dawn and dusk, and for heavy biting a licensed mosquito-control service can treat breeding sites and resting spots you can't reach.