Which of the following statements about demographic details of Punjab is/are correct?

1. The 2011 Census reported Punjab's population density as 551 persons per square kilometer.

2. Amritsar district had the highest population density in Punjab, with 978 persons per square kilometer according to the 2011 Census.

3. The 2011 Census indicated that 37.5% of Punjab's population lived in urban areas.

Which of the statements given above is/are correct?