A camera assembly for a vision system of a vehicle includes a front housing portion having a lens, a circuit board having an imager and circuitry having an electrical connecting element, and a rear housing portion having a rear attachment portion and a mounting portion configured to attach at a vehicle. When the front housing portion is joined with the rear housing portion, the electrical connecting element of the circuit board is aligned with an aperture of the attachment plate and a connecting end of an electrical connector protrudes through the aperture to electrically connect with the electrical connecting element of the circuit board. A structural element of the electrical connector is attached at the attachment plate of the bracket to seal the aperture and to maintain electrical connection of the connecting end of the electrical connector with the electrical connecting element of the circuit board.