- Sand Gravel & Aggregate, Slayton
- Sandwich Shop Restaurants, Slayton
- Screen Printing, Slayton
- Secondary Schools, Slayton
- Security Brokers & Dealers, Slayton
- Senior Citizens Service & Health Organizations, Slayton
- Sheriff's Department, Slayton
- Shoe Dyers, Slayton
- Shoe Repair & Shoeshine Parlors, Slayton
- Shoe Repair Shops, Slayton
- Shooting & Target Ranges, Slayton
- Shopping & Shopping Services, Slayton
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- Sightseeing Tours, Slayton
- Snowmobile Dealers, Slayton - Parts, Gear, Clothing & Accessories
- Social Services & Welfare, Slayton
- Speciality Food Stores, Slayton
- Specialty Animal Services, Slayton
- Specialty Stores, Slayton
- Sporting Goods Stores, Slayton
- Spraying Booths & Equipment, Slayton
- State Government, Slayton
- Stocks & Bond Brokers, Slayton
- Supper Club Restaurants, Slayton
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