Most new bathroom vanities come with the countertop, but if you’re just looking to replace the countertop, the cost will depend on the size and material chosen. According to Architectural Digest, these are the costs of various popular countertop materials (per square foot): ceramic $2–$20, porcelain $4–$30, laminate $9–$30, granite $20–$140, marble $30–$200, quartz $50–$175, and concrete $60–$140. The cost of labor may range from $50+ per hour and should only take a few hours.