Broxbourne is a town in Hertfordshire, England, 17.1 miles north of London, with a population of 15,303 at the 2011 Census. It is about 1 mile north of Wormley and immediately south of Hoddesdon. The town is near the River Lea, which forms the boundary with Essex, and 4.5 miles north of the M25 motorway. To the west of the town are Broxbourne Woods, a national nature reserve. The Prime Meridian runs just east of Broxbourne.