| Churches in Duncan, AZ (8) | Bars in Duncan, AZ (5) |
| Schools in Duncan, AZ (5) | Restaurants in Duncan, AZ (4) |
| Beauty Salons in Duncan, AZ (3) | Convenience Stores in Duncan, AZ (3) |
| Fire Departments in Duncan, AZ (3) | Government Offices in Duncan, AZ (3) |
| Snack Products in Duncan, AZ (3) | City Government - Executive Offices in Duncan, AZ (2) |
| Clinics in Duncan, AZ (2) | Government Offices - County in Duncan, AZ (2) |
| Grocery - Retail in Duncan, AZ (2) | Hotels & Motels in Duncan, AZ (2) |
| Libraries - Public in Duncan, AZ (2) | Restaurant in Duncan, AZ (2) |
| State Government - Transportation Programs in Duncan, AZ (2) | Trucking Operator - Nonlocal in Duncan, AZ (2) |
| Animal Feed & Supplies Nursery in Duncan, AZ (1) | Apartments in Duncan, AZ (1) |
| Automobile Dealers - Used Cars in Duncan, AZ (1) | Automobile Repairing & Service in Duncan, AZ (1) |
| Building Construction - Consultants in Duncan, AZ (1) | Cattle Ranching in Duncan, AZ (1) |
| Chiropractors in Duncan, AZ (1) | Cotton Farm Cash Grains Farm Vegetable Melon Farm Real in Duncan, AZ (1) |
| County Government - Executive Offices in Duncan, AZ (1) | County Government - Public Health Programs in Duncan, AZ (1) |
| Dairies in Duncan, AZ (1) | Dairy Farm in Duncan, AZ (1) |
| Fairgrounds in Duncan, AZ (1) | Farms in Duncan, AZ (1) |
| Federal Government - Agricultural Programs in Duncan, AZ (1) | Federal Government - Conservation Depts in Duncan, AZ (1) |
| Fencing Contractors in Duncan, AZ (1) | Fire Protection in Duncan, AZ (1) |
| Florists - Retail in Duncan, AZ (1) | Fruits & Vegetables & Produce - Retail in Duncan, AZ (1) |
| Fruits Vegetables in Duncan, AZ (1) | Gas - Liquefied Petro - Bttld Bulk (Whol) in Duncan, AZ (1) |
| Gas Transmission Distribution Real Estate Agent Manager in Duncan, AZ (1) | Gasoline Service Station in Duncan, AZ (1) |
| General Construction in Duncan, AZ (1) | General Contractor in Duncan, AZ (1) |
| Golf Courses - Private in Duncan, AZ (1) | Government - Forestry Services in Duncan, AZ (1) |
| Grading Contractors in Duncan, AZ (1) | Grocery Store in Duncan, AZ (1) |
| Guide Service in Duncan, AZ (1) | Hardware - Retail in Duncan, AZ (1) |
| Heavy Construction in Duncan, AZ (1) | Legislative Body in Duncan, AZ (1) |
| Meat - Retail in Duncan, AZ (1) | Meat Fish in Duncan, AZ (1) |
| Mobile Home Site Operator in Duncan, AZ (1) | Mobile Homes - Park Developers in Duncan, AZ (1) |
| National Commercial Bank in Duncan, AZ (1) | Nonmetallic Mineral Services in Duncan, AZ (1) |
| Pawnshop in Duncan, AZ (1) | Periodicals - Publishing Printing in Duncan, AZ (1) |
| Police Departments in Duncan, AZ (1) | Post Offices in Duncan, AZ (1) |
| Quilting Materials & Supplies in Duncan, AZ (1) | Ranch in Duncan, AZ (1) |
| Ranches in Duncan, AZ (1) | Refuse System in Duncan, AZ (1) |
| Regulation Administrative Transportation Highway Street in Duncan, AZ (1) | Remodeling & Repairing Contractors in Duncan, AZ (1) |
| Rubber - Foam & Sponge (Wholesale) in Duncan, AZ (1) | Saddlery & Harness in Duncan, AZ (1) |
| Sand & Gravel (Wholesale) in Duncan, AZ (1) | Schools - Nursery & Kindergarten in Duncan, AZ (1) |
| Senior Citizens Service in Duncan, AZ (1) | Stamps For Collectors in Duncan, AZ (1) |
| State Government - Conservation Depts in Duncan, AZ (1) | Subdivider Developer Nonresidential Construction in Duncan, AZ (1) |
| Swimming Pools - Public in Duncan, AZ (1) | Tack & Board Horses in Duncan, AZ (1) |
| Taxidermists in Duncan, AZ (1) | Telecommunications Services in Duncan, AZ (1) |
| Television - Cable & Catv in Duncan, AZ (1) | Toilets - Portable in Duncan, AZ (1) |
| Trucking - Heavy Hauling in Duncan, AZ (1) | Trucking - Liquid & Dry Bulk in Duncan, AZ (1) |
| Trucking, Except Local in Duncan, AZ (1) | Variety Store in Duncan, AZ (1) |
| Whol Farm Supplies in Duncan, AZ (1) | Wrecker Service & Towing in Duncan, AZ (1) |
