- Lawn & Garden Chemicals, Insecticides & Fertilizers, Sac City
- Lawyers & Attorneys, Sac City
- Legal Professionals, Sac City
- Libraries, Sac City
- Life Insurance, Sac City
- Liquor Stores, Sac City
- Livestock, Sac City
- Livestock Dealers, Sac City
- Loans Personal, Sac City
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- Local & Short Haul Trucking Companies, Sac City
- Locks, Sac City
- Locksmiths, Sac City - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Sac City
- Lodging, Sac City
- Long Haul Trucking Companies, Sac City
- Lumber & Lumber Products, Sac City
- Lumber & Lumber Products, Sac City
- Lutheran Church, Sac City
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