- Cable TV Companies & Services, Johnsonville
- Carpet, Rug & Linoleum Flooring Dealers, Johnsonville
- Cars, Truck, Van & SUV Car Dealerships, Johnsonville - Auto Dealers
- Casual Dining Restaurants, Johnsonville
- Cellular & Mobile Phone Service, Johnsonville
- Central American Restaurants, Johnsonville
- Child Care & Day Care Services, Johnsonville
- Christian Churches, Johnsonville
- Churches 1 Of 3, Johnsonville
- Churches 2 Of 3, Johnsonville
- City & County Administrative Agencies, Johnsonville
- City & County Government, Johnsonville
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- City & County Law Enforcement, Johnsonville
- Clinics, Johnsonville
- Communications Services, Johnsonville
- Community Services, Johnsonville
- Computer Networks, Johnsonville - Design & Systems
- Construction, Johnsonville
- Consultants & Services, Johnsonville
- Contact Lenses, Johnsonville
- Convenience Stores, Johnsonville
- Cosmetics, Toiletries, Perfumes & Beauty Supply Stores, Johnsonville
- County Police, Johnsonville
- CV Joint & Axle, Johnsonville
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