Please take comfort in knowing that we have always strictly adhered to CDC infection control standards and have now implemented additional protocols to help ensure patient and employee safety. For more details about our COVID-19 sterilization protocols, please see our Patient Safety page.
Dedicated to Excellence
People are our focus.
General Dentistry
Restore Your Smile Today
Family Dentistry
Dental Care for All Ages
Cosmetic Dentistry
Brighten Your Smile
Emergency Dentistry
Dentistry When You Need It
Welcome to County Line Dental
Family Dentistry in Germantown, WI
Welcome to County Line Dental, our goal is to make sure that every dental visit is an excellent experience. Our caring team takes pride in offering high-quality dental care and addressing your questions and concerns to help you enjoy your visit. Our office provides dental care for the entire family to help establish excellent oral health from a young age for smiles that remain beautiful and healthy for a lifetime.
Our dental office utilizes the latest and best dental technology and services to provide you with excellent dental care. If you have any questions, you can always contact our office and let our friendly staff assist you. We look forward to your first visit to County Line Dental!
Dentist Near You.
We are proud to offer dental care services to the Germantown neighborhood and have been serving the local community for over thirty years. Call our friendly staff today and schedule your first appointment!

Office Hours
Monday | 8:00 am – 6:00 pm |
Tuesday | 8:00 am – 5:00 pm |
Wednesday | 8:00 am – 6:00 pm |
Thursday | 8:00 am – 5:00 pm |
Friday | 8:00 am – 12:00 pm |
Saturday | Closed |
Sunday | Closed |

Meet Our Doctors.
Dr. John Watson, DDS
Dr. Watson is a third generation dentist who graduated from Marquette University in 1983. His father was a graduate of Marquette University Class of 1955 and his grandfather was a Class of 1921 Marquette graduate. Dr. Watson proudly joined his father’s practice in 1983 and worked along side him until he retired in 2000. He married his wife, Sharon, in 1981 and has been happily married ever since. They have two children, Jason, 28, and Lauren, 26, and 2 grandchildren, Alice, 5, and Sera, 1. Outside of his practice, Dr. Watson enjoys spending time at their family retreat in Three Lakes, WI, where they swim, go boating, fish, and explore the Nicolet National Forest. Dr. Watson’s passion is driving his 1936 Garwood Mahogany speedboat. His other interests include collecting, repairing, and running vintage Lionel trains. Dr. Watson takes great pride in this practice and his patients always remain a priority.

Dr. Jessica Gruber
I am originally from Germantown, Wisconsin and couldn’t be more excited to serve my hometown as a healthcare professional. In my undergraduate career, I studied at Marquette University with a major in biomedical sciences. I continued my education in Milwaukee at Marquette University School of Dentistry, where I received an excellent education in the many facets of dentistry including fillings, crowns, veneers, root canals, dentures, restoring implants, and much more. During my time at Marquette’s dental school I had countless opportunities to partake in service to the community, including the Wisconsin Dental Associations Mission of Mercy, Give Kids a Smile Day, and the Hispanic Student Dental Associations Kids Wellness Day. Giving back to my community with my time and talents is extremely important to me.


Associations and Accolades
Our office is a proud member of many associations. We stay up to date on the latest in dental technology to ensure you have the most satisfying visit.

New Patient Experience!
$59 New Patient Experience. Includes exam, bitewing x-rays and consultation. Contact us below to claim offer. Book an Appointment
Germantown, WI Family and Cosmetic Dental Office. Call our friendly staff today.
Office Hours
Monday | 8:00 am – 6:00 pm |
Tuesday | 8:00 am – 5:00 pm |
Wednesday | 8:00 am – 6:00 pm |
Thursday | 8:00 am – 5:00 pm |
Friday | 8:00 am – 12:00 pm |
Saturday | Closed |
Sunday | Closed |
Office Hours
Monday | 8:00 am – 6:00 pm |
Tuesday | 8:00 am – 5:00 pm |
Wednesday | 8:00 am – 6:00 pm |
Thursday | 8:00 am – 5:00 pm |
Friday | 8:00 am – 12:00 pm |
Saturday | Closed |
Sunday | Closed |