Meet Donald Rosier
Donald Rosier was elected as the Jefferson County Commissioner for District 3 in 2010 and was re-elected to a second term in 2014. Rosier, a fifth-generation Coloradoan who grew up in Arvada, has lived in Jefferson County his entire life. A graduate of Colorado State University with a bachelor’s degree in civil engineering with an emphasis in water resources, Rosier worked in the consulting engineering field, the public engineering sector, the land development and construction field, and in energy development and exploration.
WHAT'S IMPORTANT FOR JEFFERSON COUNTY
Commissioner it will be my job once again to serve as the conduit between the many levels of county
government and you, the residents of Jefferson County.
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YOUR COMMISSIONER'S JOB
Ever wondered what your commissioner really does?
The roles and duties of county commissioners are numerous and varied. Commissioners must understand each level of their responsibility to effectively lead a county.