IP11 postcode district: Felixstowe and around, Suffolk

IP11 is a postcode district in Suffolk, with 974 postcodes in use in 8 sectors. It has postcodes in Felixstowe, Trimley St Mary and Trimley St Martin. Its council is East Suffolk.

Postcodes in use: 974
Sectors: 8
Council: East Suffolk
Places: 3 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in IP11, and which are new since 2020

New since 2020: 63
In use before 2020: 911
Outline: where 5 or more new postcodes since 2020 lie together

Of the 974 postcodes in IP11 that ONS places, 63 are new since 2020 and 911 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.9681, longitude 1.3409. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 5 newest postcodes

IP11 6ASJune 2026 IP11 7FFJune 2026 IP11 0AHApril 2026 IP11 0AGFebruary 2026 IP11 9GUFebruary 2026

5 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

IP11 0QL IP11 0SH IP11 0SQ IP11 3TW IP11 9RZ

Where the new postcodes lie together

12 new postcodes since 2020, outlined on the map. IP11 6AS, is the newest of them.
12 new postcodes since 2020, outlined on the map. IP11 9GU, is the newest of them.
8 new postcodes since 2020, outlined on the map. IP11 9FW, is the newest of them.
5 new postcodes since 2020, outlined on the map. IP11 9GZ, is the newest of them.

What broadband can you get in IP11?

Ofcom reports on 945 of the 974 postcodes in IP11. At 865 of them every home and business can get gigabit broadband, and at 1 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit865 of 945

Postcodes where every home can get superfast919 of 945

Postcodes where some cannot get decent broadband1 of 945

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is IP11 at risk of flooding?

150 of the 974 postcodes in IP11 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 237 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 150 of 974 postcodes High: 197Medium: 40Low: 1,354Very low: 997

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in IP11?

Homes in IP11 sold for a typical £277,500 in the 12 months to August 2026, across 429 sales, down 5.9% on the 12 months before, HM Land Registry's figures show.

£277,500 typical price, the 12 months to August 2026

£295,000 12 months to August 2025

▼ down 5.9% on the 12 months before

Detached £380,000 133 sales
Semi-detached £267,000 139 sales
Terraced £235,000 103 sales
Flat or maisonette £159,250 54 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it