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Soil Types in Ontonagon County, Michigan

Ontonagon County has 8 zip codes in our database. Explore the soil types, hardiness zones, and gardening tips for this county.

Hardiness Zones

Ontonagon County spans USDA zones 4b through 5a.

4b 5a

Top Cities in Ontonagon County

Soil Types in Ontonagon County

Ontonagon County in Michigan has 8 zip codes in our database. The most common soil type is Loam, found in 0% of the county. Understanding your local soil helps you choose the right plants and amendments for your garden.

Hardiness Zones in Ontonagon County

Ontonagon County spans USDA hardiness zones 4b through 5a. Your hardiness zone determines which perennial plants will survive winter in your area. Enter your zip code above to find your exact zone and get personalized planting recommendations.

Browse Zip Codes in Ontonagon County