Pest Control in Wisconsin

Wisconsin pest pressure, metro by metro

Wisconsin does not have one pest problem — it has one per metro, shaped by local weather:

• hot humid summers and deep-freeze winters that push pests indoors in waves (Milwaukee)
• hot humid summers and deep-freeze winters that push pests indoors in waves (Madison)
• hot humid summers and deep-freeze winters that push pests indoors in waves (Green Bay)
• hot humid summers and deep-freeze winters that push pests indoors in waves (Appleton)

Across the state we cover 24 counties within these metro areas. Browse the metro pages below, or see the Wisconsin county index for county-level coverage.

Wisconsin coverage in numbers

Add the state up and coverage looks like this: about 3,927,213 people across 10 metro areas, 127 named communities, 292 ZIP codes and 24 counties — with Milwaukee, the largest metro, carrying roughly 40% of the covered population. Annual average temperatures span from about 45°F around Eau Claire to 49°F around Janesville, a spread that moves first-frost dates, termite pressure and tick seasons from one end of Wisconsin to the other.

Read Wisconsin through its largest metro: Milwaukee homes have a median build year of 1966, with roughly 68% of the stock built before 1980 and 60% owner-occupied. Age like that means settled gaps at foundations, mature landscaping against walls, and crawlspaces that have hosted decades of seasons — the conditions the metro pest guides on this page are written around.

Wisconsin metros at a glance

Milwaukee — about 1,575,010 residents across 4 counties. The local watch list: carpenter ants, overwintering pests and house mice, in a metro where hot humid summers and deep-freeze winters that push pests indoors in waves.

Madison — 709,685 residents, 4 counties. First on its watch list: carpenter ants, then overwintering pests and house mice — the pattern of a metro where hot humid summers and deep-freeze winters that push pests indoors in waves.

Green Bay — a metro of 336,756 across 3 counties, where the watch list runs carpenter ants, overwintering pests, house mice — the standing pattern where hot humid summers and deep-freeze winters that push pests indoors in waves.

Appleton — about 249,876 residents across 2 counties. The local watch list: carpenter ants, overwintering pests and house mice, in a metro where hot humid summers and deep-freeze winters that push pests indoors in waves.

Racine — about 198,919 residents across 1 counties. The local watch list: carpenter ants, overwintering pests and house mice, in a metro where hot humid summers and deep-freeze winters that push pests indoors in waves.

Eau Claire — about 176,647 residents across 2 counties. The local watch list: carpenter ants, overwintering pests and house mice, in a metro where hot humid summers and deep-freeze winters that push pests indoors in waves.

Oshkosh — about 174,218 residents across 1 counties. The local watch list: carpenter ants, overwintering pests and house mice, in a metro where hot humid summers and deep-freeze winters that push pests indoors in waves.

La Crosse — a metro of 171,182 across 3 counties, where the watch list runs carpenter ants, overwintering pests, house mice — the standing pattern where hot humid summers and deep-freeze winters that push pests indoors in waves.