South Carolina mosquito forecast, by town

A daily mosquito bite-risk score for all 383 South Carolina towns, grouped by their 46 counties. Mosquito pressure is local, so pick your town for today's number, a 7-day outlook, and what's driving it.

Abbeville County · 6 towns

Aiken County · 17 towns

Allendale County · 4 towns

Anderson County · 15 towns

Bamberg County · 5 towns

Barnwell County · 7 towns

Beaufort County · 8 towns

Berkeley County · 10 towns

Calhoun County · 2 towns

Charleston County · 16 towns

Cherokee County · 3 towns

Chester County · 6 towns

Chesterfield County · 8 towns

Clarendon County · 5 towns

Colleton County · 6 towns

Darlington County · 5 towns

Dillon County · 3 towns

Dorchester County · 5 towns

Edgefield County · 4 towns

Fairfield County · 4 towns

Florence County · 9 towns

Georgetown County · 5 towns

Greenville County · 20 towns

Greenwood County · 5 towns

Hampton County · 9 towns

Horry County · 15 towns

Jasper County · 2 towns

Kershaw County · 5 towns

Lancaster County · 7 towns

Laurens County · 7 towns

Lee County · 2 towns

Lexington County · 17 towns

Marion County · 4 towns

Marlboro County · 5 towns

McCormick County · 3 towns

Newberry County · 7 towns

Oconee County · 7 towns

Orangeburg County · 20 towns

Pickens County · 9 towns

Richland County · 15 towns

Saluda County · 3 towns

Spartanburg County · 28 towns

Sumter County · 13 towns

Union County · 6 towns

Williamsburg County · 5 towns

York County · 16 towns

South Carolina mosquito questions

What kinds of mosquitoes live in South Carolina?
South Carolina 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 South Carolina?
In South Carolina, 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 South Carolina?
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 South Carolina health department's arbovirus surveillance.
How do I keep mosquitoes out of my yard in South Carolina?
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.