No, they are manufactured in China.
The exact diameter of these bulbs is 3.125 inches which is considered a standard 3 inch equivalent. This information is from https://www.homedepot.com/p/60-Watt-Equivalent-G25-Globe-Vanity-Frosted-Glass-Vintage-Edison-Filament-Dimmable-LED-Light-Bulb-Soft-White-24-Pack-FG-03180X4/305334305 Specifications Dimensions Bulb Diameter (In.) 3.125 Product Depth (in.) 3.125 in Product Height (in.) 4.45 in Product Width (in.) 3.125 in Details Actual Color Temperature (K) 2700 Average Life (hours) 15000 Bulb Construction Glass Bulb Shape Globe Bulb Type Decorative Color Rendering Index (CRI) 80 Color Temperature Soft White Decorative Bulb Type Frosted Fixture Color/Finish Soft White Indoor/Outdoor Indoor Light Bulb Base Code E26 Light Bulb Base Type Medium
If you are experiencing a smaller amount of dimming range with your current dimming control, we suggest the Lutron CL series of dimmers. These dimmers were the first to be designed with LED light bulbs in mind and offer a trim adjustment switch that will allow for full and accurate control of dimming range. Since LEDs consume such a low wattage, many types of dimmers do not function with LED in the same way that they do with high wattage load incandescents.