| Schools in Porcupine, SD (8) | Government Offices - Indian in Porcupine, SD (4) |
| Churches in Porcupine, SD (3) | Convenience Stores in Porcupine, SD (3) |
| Child Care Referral Services in Porcupine, SD (2) | Health Services in Porcupine, SD (2) |
| Radio Stations & Broadcasting Companies in Porcupine, SD (2) | Administrative Public Health Programs in Porcupine, SD (1) |
| Animal Services in Porcupine, SD (1) | Auto Glass Replacement Ret & Install Garage Doors & Ret in Porcupine, SD (1) |
| Automobile Repairing & Service in Porcupine, SD (1) | Automotive Repair & Service in Porcupine, SD (1) |
| Business Management Consultants in Porcupine, SD (1) | Child Care Service in Porcupine, SD (1) |
| Clinics in Porcupine, SD (1) | Driving Instruction in Porcupine, SD (1) |
| Electric Contractors in Porcupine, SD (1) | Electrical Contractor in Porcupine, SD (1) |
| Elementary Secondary School in Porcupine, SD (1) | Formal Wear - Rental in Porcupine, SD (1) |
| General Crop Farm in Porcupine, SD (1) | Grocery Store in Porcupine, SD (1) |
| Horse Breeders in Porcupine, SD (1) | Hotel Motel Operation in Porcupine, SD (1) |
| Non - Profit Organizations in Porcupine, SD (1) | Police Departments in Porcupine, SD (1) |
| Polygraph Service in Porcupine, SD (1) | Radio Broadcast Stations in Porcupine, SD (1) |
| Retreat Houses in Porcupine, SD (1) | Schools - Universities & Colleges Academic in Porcupine, SD (1) |
| Snack Products in Porcupine, SD (1) | Social Service & Welfare Organizations in Porcupine, SD (1) |
| Social Services in Porcupine, SD (1) | Social Services With A Newspaper in Porcupine, SD (1) |
| Specialty Outpatient Clinic Health Practitioner's Offic in Porcupine, SD (1) | Store Fuels Hotels & General Contractor in Porcupine, SD (1) |
| Us Postal Service in Porcupine, SD (1) |
