A Map of the U.S. state New Jersey

New Jersey Facts

  • U.S. State: New Jersey
  • Abbreviation: NJ
  • Joined the USA: December 18th, 1787 (3rd State)
  • Located: Northeastern United States
  • Capital City: Trenton, NJ
  • Most Populated City: Newark, NJ

33 New Jersey Facts for Kids

  1. New Jersey is a state in the United States of America.
  2. New Jersey became a U.S. State on Tuesday, December 18th, 1787.
  3. New Jersey was the 3rd state to join the United States.
  4. The U.S. state of New Jersey covers 8,722 square miles.
  5. New Jersey is the 47th largest state by area in the United States.
  6. In 2019, the population of New Jersey was estimated to be 8,882,000 residents by the U.S. Census Bureau.
  7. In 2019, New Jersey was the 11th most populated state in the United States.
  8. A person who is from or lives in New Jersey is called a New Jerseyan.
  9. The capital city of New Jersey is Trenton.
  10. The four most populated cities in New Jersey are Newark, Jersey City, Paterson and Elizabeth.
  11. The largest city by population in New Jersey is Newark.
  12. The largest metropolitan area in New Jersey is the New York metropolitan area.
  13. The U.S. state of New Jersey has 21 counties.
  14. The most populated county in New Jersey is Bergen County with 932,202 residents (2019, U.S. Census Bureau).
  15. The largest county by area in New Jersey is Burlington County with 805 square miles.
  16. The highest elevation point in New Jersey is High Point at 1,803 feet above sea level.
  17. The lowest elevation point in New Jersey is the shoreline of the Atlantic Ocean at sea level.
  18. The average precipitation (rain and snow) in New Jersey is 48 inches.
  19. New Jersey is the 13th wettest state by precipitation (rain and snow) in the United States.
  20. The average temperature in New Jersey is 51.9 °F.
  21. New Jersey is the 24th warmest state in the United States.
  22. The warmest temperature ever recorded in New Jersey was 110 °F on July 10th, 1936.
  23. The coldest temperature ever recorded in New Jersey was -34 °F on January 5th, 1904.
  24. A few natural disasters that can affect New Jersey are heat waves, hurricanes, ice storms and nor'easters.
  25. New Jersey is in one time zone, Eastern Time Zone (ET).
  26. The USPS abbreviation for New Jersey is NJ.
  27. New Jersey is also known as the Garden State.
  28. The official state insect of New Jersey is the honeybee (Apis).
  29. The official state fish of New Jersey is the brook trout (Salvelinus fontinalis).
  30. The official state bird of New Jersey is the eastern goldfinch (Spinus tristis).
  31. The official state animal of New Jersey is the horse (Equus ferus caballus).
  32. The official state flower of New Jersey is the purple violet.
  33. The official state tree of New Jersey is the red oak (Quercus rubra).

Additional Resources on New Jersey