There isn't a specific height for a stop sign, I've seen short stop signs, tall stop signs, etc. Taller stop signs would probably be in areas where there's high traffic so everyone can see them, the shorter stop signs are used in parking lots.
50
You are generally not allowed to park within 30 feet of a stop sign.
In Texas, you must park at least 30 feet away from a stop sign.
25 feet 2405.2 d No person shall stand or park a motor vehicle within 25 feet of the approach side of any "stop" or "yield" sign located at the side of the roadway.
50 ft
50 feet
5 feet
30 feet
how mant feet from the stop sign ahould you stop
30 feet
25 feet
30 feet