What is standard height for a kitchen counter bar top & does it vary?

34 inches for handicapped 36 to 38 regularly.

36 inch is standard in the industry. If you ever want to sell the home, 36 is a must. If it's your forever home, make it comfortable with your height

When we bought our home it had really short counters. The original owners/builders must have been short at 35". When we redid the kitchen I had the counters raised to 39". Love the height. Good on the back.

Standard is typically 36" but the bar top portions vary greatly. If making for your home, make the bar top portion a comfortable height for your family.

36" is the standard height for kitchen countertops...and a bar top is typically between 36" and 42".