MK45 postcode district: Flitwick and around

MK45 is a postcode district in England, with 1,313 postcodes in use in 7 sectors. It has postcodes in Flitwick, Ampthill, Barton-le-Clay and 7 more places. It is split between 2 councils: Central Bedfordshire (1,169 postcodes) and Bedford (144).

Postcodes in use: 1,313
Sectors: 7
Councils: 2 councils
Places: 10 places

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

Every postcode in MK45, and which are new since 2020

New since 2020: 102
In use before 2020: 1,211
Outline: where 5 or more new postcodes since 2020 lie together

Of the 1,313 postcodes in MK45 that ONS places, 102 are new since 2020 and 1,211 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 170 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 52.0230, longitude -0.4699. 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

MK45 3SYJuly 2026 MK45 3TDJuly 2026 MK45 3UUJuly 2026 MK45 3SLMay 2026 MK45 5FQMay 2026

Where the new postcodes lie together

24 new postcodes since 2020, outlined on the map. MK45 3UN, is the newest of them.
16 new postcodes since 2020, outlined on the map. MK45 3SY, is the newest of them.
9 new postcodes since 2020, outlined on the map. MK45 3SL, is the newest of them.
7 new postcodes since 2020, outlined on the map. MK45 9GY, is the newest of them.
6 new postcodes since 2020, outlined on the map. MK45 3TZ, is the newest of them.
5 new postcodes since 2020, outlined on the map. MK45 5FQ, is the newest of them.

What broadband can you get in MK45?

Ofcom reports on 1,256 of the 1,313 postcodes in MK45. At 784 of them every home and business can get gigabit broadband, and at 12 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit784 of 1,256

Postcodes where every home can get superfast1,122 of 1,256

Postcodes where some cannot get decent broadband12 of 1,256

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 MK45 at risk of flooding?

64 of the 1,313 postcodes in MK45 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 198 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 64 of 1,313 postcodes High: 62Medium: 136Low: 171Very low: 5

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 MK45?

Homes in MK45 sold for a typical £398,000 in the 12 months to August 2026, across 681 sales, up 1.4% on the 12 months before, HM Land Registry's figures show.

£398,000 typical price, the 12 months to August 2026

£392,500 12 months to August 2025

▲ up 1.4% on the 12 months before

Detached £530,000 243 sales
Semi-detached £375,000 232 sales
Terraced £320,000 161 sales
Flat or maisonette £215,000 45 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