Replaced light switch in the bedroom, light works in room but it is tied to one breaker which operates the bedroom light, the kitchen light, the porch light and one outlet in the kitchen. The bedroom light works where I replaced the switch but now the other items on the breaker do not work. What could be wrong?

Did u use same wires that were on old switch?

Check other wires in switch box. Be sure that all wire nuts are tight and secure. When doing this be sure to turn breaker off.

Chuck

Yes I did you same wires, new switch. Checked wire nuts, took switch off and put it back on with the same results.

Describe the wiring in the switch box. How many cables, how many and what color wires in each cable and how are they connected.