IP4 1FT Ipswich
Live postcode, introduced May 2009. Ward: Alexandra. Region: East of England.
Streets
- College Street, Ipswich: 80 addresses
- Key Street, Ipswich: 10 addresses
- The Mill, Ipswich: 4 addresses
- Foundry Lane, Ipswich: 3 addresses
Council tax
What each band costs in Ipswich in 2026-27: Band D £2,468 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,646 | £1,920 | £2,194 | £2,468 | £3,017 | £3,565 | £4,114 | £4,937 |
Homes by band in the neighbourhood around this postcode: most are in band C (37% of about 1,060 homes).
Flood risk
Rivers, the sea or surface water: in this postcode, 38 addresses are in areas at high risk, 0 at medium risk and 22 at low risk. Each address counts once, at the higher of its rivers-and-sea and surface-water risk.
Rivers and the sea alone: of the 41 homes the Environment Agency counts, 0 are in areas at high risk, 0 medium, 0 low and 41 very low.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. Very low: under 0.1%. The rivers and sea figures allow for flood defences. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: the postcode centre is in flood zone 3. Zone 3 is a 1% (1 in 100) or greater annual chance of flooding from rivers, or 0.5% from the sea, ignoring defences.
Broadband
Superfast 100%, ultrafast 100%, gigabit 100% of premises; 0% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.
The full dossier for this postcode's main street is on College Street.