A camera assembly for a vehicle vision system includes a housing having a first housing portion and a second housing portion, with a circuit element disposed within the first housing portion. The second housing portion has a connector portion configured for connecting to a vehicle wiring when the camera assembly is installed at a vehicle. A coaxial connector is disposed at the connector portion of the second housing portion. The coaxial connector includes a plurality of electrical coaxial connector elements. Each of the electrical coaxial connector elements has (i) a first end that is configured for electrically connecting to circuitry of the circuit element within the first housing portion and (ii) a second end that is configured for electrically connecting to the vehicle wiring.