| Churches in Knox, PA (11) | Restaurants in Knox, PA (8) |
| Government Offices in Knox, PA (6) | Beauty Salons in Knox, PA (4) |
| Automobile Repairing & Service in Knox, PA (3) | Bars in Knox, PA (3) |
| Clergy in Knox, PA (3) | Schools in Knox, PA (3) |
| Schools - Nursery & Kindergarten in Knox, PA (3) | Service Stations - Gasoline & Oil in Knox, PA (3) |
| Automobile Dealers - Used Cars in Knox, PA (2) | Clubs in Knox, PA (2) |
| Cosmetics & Perfumes - Retail in Knox, PA (2) | Electric Contractors in Knox, PA (2) |
| Electrical Contractor in Knox, PA (2) | Excavating Contractors in Knox, PA (2) |
| Florists - Retail in Knox, PA (2) | Funeral Home in Knox, PA (2) |
| General Contractors in Knox, PA (2) | Grocery - Retail in Knox, PA (2) |
| Insurance in Knox, PA (2) | Landscape Contractors in Knox, PA (2) |
| Sporting Goods - Retail in Knox, PA (2) | Taxidermists in Knox, PA (2) |
| Accountants in Knox, PA (1) | Ambulance Service in Knox, PA (1) |
| Animal Feed & Supplies Nursery in Knox, PA (1) | Apartments in Knox, PA (1) |
| Appliances - Household - Major - Repairing in Knox, PA (1) | Automobile Parts & Supplies - Retail - New in Knox, PA (1) |
| Bakers - Retail in Knox, PA (1) | Banks in Knox, PA (1) |
| Barbers in Knox, PA (1) | Bed & Breakfast Accommodations in Knox, PA (1) |
| Bowling Centers in Knox, PA (1) | Campgrounds in Knox, PA (1) |
| Carpet Layers in Knox, PA (1) | Child Care Service in Knox, PA (1) |
| Chiropractors in Knox, PA (1) | City Govt - Regulation Adm - Comms Utilities in Knox, PA (1) |
| Computer Software in Knox, PA (1) | Computers - Service & Repair in Knox, PA (1) |
| Concrete Breaking Cutting & Sawing & Etc in Knox, PA (1) | Concrete Contractors in Knox, PA (1) |
| Copying & Duplicating Machines & Supls in Knox, PA (1) | Craft Supplies in Knox, PA (1) |
| Dentists in Knox, PA (1) | Farm Equipment (Wholesale) in Knox, PA (1) |
| Federally Chartered Credit Unions in Knox, PA (1) | Fire Departments in Knox, PA (1) |
| Floor Laying Refinishing & Resurfacing in Knox, PA (1) | Foods in Knox, PA (1) |
| Garbage Collection in Knox, PA (1) | Gas Companies in Knox, PA (1) |
| Gift Shops in Knox, PA (1) | Government Offices - County in Knox, PA (1) |
| Government Offices - State in Knox, PA (1) | Group Homes in Knox, PA (1) |
| Home Health Service in Knox, PA (1) | Hospitals in Knox, PA (1) |
| House Construction Contractors in Knox, PA (1) | Hypnotists in Knox, PA (1) |
| Libraries - Public in Knox, PA (1) | Liquors - Retail in Knox, PA (1) |
| Local Passenger Transportation in Knox, PA (1) | Lumber - Retail in Knox, PA (1) |
| Machine Shops in Knox, PA (1) | Mfg Misc Products in Knox, PA (1) |
| Miscellaneous Industrial Supplies (Whol) in Knox, PA (1) | Mobile Homes - Manufacturers in Knox, PA (1) |
| Mobile Homes - Renting & Leasing in Knox, PA (1) | Modular Homes - Dealers in Knox, PA (1) |
| Molding - Manufacturers in Knox, PA (1) | Motorcycles & Motor Scooters - Repair Service in Knox, PA (1) |
| Paint - Retail in Knox, PA (1) | Pallets & Skids (Wholesale) in Knox, PA (1) |
| Photographers - Portrait in Knox, PA (1) | Physicians & Surgeons in Knox, PA (1) |
| Pizza in Knox, PA (1) | Police Departments in Knox, PA (1) |
| Post Offices in Knox, PA (1) | Printers in Knox, PA (1) |
| Real Estate Loans in Knox, PA (1) | Remodeling & Repairing Contractors in Knox, PA (1) |
| Retail Shops in Knox, PA (1) | Road Building Equipment (Wholesale) in Knox, PA (1) |
| Roofing Contractors & Roofers in Knox, PA (1) | Septic Tanks Systems - Cleaning Repairing in Knox, PA (1) |
| Sewage Disposal Systems in Knox, PA (1) | State Government - Environmental Programs in Knox, PA (1) |
| Storage - Household & Commercial in Knox, PA (1) | Thrift Shops in Knox, PA (1) |
| Tire - Dealers - Retail in Knox, PA (1) | Tire - Distributors in Knox, PA (1) |
| Toilets - Portable in Knox, PA (1) | Tours - Operators & Promoters in Knox, PA (1) |
| Transportation Services in Knox, PA (1) | Travel Agencies & Bureaus in Knox, PA (1) |
| Trucking - Heavy Hauling in Knox, PA (1) | Trucking Operator - Nonlocal in Knox, PA (1) |
