The town centre is about 50 feet (15 m) above sea level on a gravel terrace rising from the River Thames.
The north of the town has developed on London Clay and is situated as much as 150 feet (46 m) above sea level.
The town centre is for the most part contained within a ring road formed of St Edwards Way, Mercury Gardens, Thurloe Gardens, Oldchurch Road and Waterloo Road.
The market place and much of South Street and the High Street are pedestrianised.
The railway cuts through the town from east to west on a viaduct, with the bulk of the central Romford area to its north.
The River Rom flows through the town in underground channels and joins the Thames after flowing through Hornchurch; elsewhere along its course it is known as the River Beam and forms part of the strategic waterways Blue Ribbon Network.
Romford has formed part of the continuously built-up area of London since the 1930s and is contiguous with Rush Green to the west, Collier Row to the north, Gidea Park to the east and Hornchurch to the south east.

The Romford post town covers all of the former municipal borough and extends over a much wider area, including parts of Barking and Dagenham and Epping Forest.

Neighbourhoods of Romford include: Collier Row, Gidea Park, Harold Hill, Harold Park, Harold Wood, Havering-atte-Bower, Rise Park and Rush Green.

Romford is located 14 miles (23 km) north-east of Charing Cross in central London; 4.7 miles (7.6 km) north-east of Ilford; 2.5 miles (4.0 km) north of Dagenham; 9.1 miles (14.6 km) north-west of Grays; 6.2 miles (10.0 km) south-west of Brentwood; 12 miles (19 km) west of Basildon; and 8.9 miles (14.3 km) south-east of Epping.
The town centre is about 50 feet (15 m) above sea level on a gravel terrace rising from the River Thames. The north of the town has developed on London Clay and is situated as much as 150 feet (46 m) above sea level. The town centre is for the most part contained within a ring road formed of St Edwards Way, Mercury Gardens, Thurloe Gardens, Oldchurch Road and Waterloo Road. The market place and much of South Street and the High Street are pedestrianised. The railway cuts through the town from east to west on a viaduct, with the bulk of the central Romford area to its north. The River Rom flows through the town in underground channels and joins the Thames after flowing through Hornchurch; elsewhere along its course it is known as the River Beam and forms part of the strategic waterways Blue Ribbon Network. Romford has formed part of the continuously built-up area of London since the 1930s and is contiguous with Rush Green to the west, Collier Row to the north, Gidea Park to the east and Hornchurch to the south east. 
The Romford post town covers all of the former municipal borough and extends over a much wider area, including parts of Barking and Dagenham and Epping Forest.
Neighbourhoods of Romford include: Collier Row, Gidea Park, Harold Hill, Harold Park, Harold Wood, Havering-atte-Bower, Rise Park and Rush Green.
Romford is located 14 miles (23 km) north-east of Charing Cross in central London; 4.7 miles (7.6 km) north-east of Ilford; 2.5 miles (4.0 km) north of Dagenham; 9.1 miles (14.6 km) north-west of Grays; 6.2 miles (10.0 km) south-west of Brentwood; 12 miles (19 km) west of Basildon; and 8.9 miles (14.3 km) south-east of Epping.
Romford