MK1 postcode district: Bletchley and around, Milton Keynes

MK1 is a postcode district in England, with 105 postcodes in use in 2 sectors. It has postcodes in Bletchley. Its council is Milton Keynes.

Postcodes in use: 105
Sectors: 2
Council: Milton Keynes
Places: Bletchley

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

Every postcode in MK1, and which are new since 2020

New since 2020: 15
In use before 2020: 90
Outline: where 5 or more new postcodes since 2020 lie together

Of the 105 postcodes in MK1 that ONS places, 15 are new since 2020 and 90 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 180 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. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 52.0055, longitude -0.7245. 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

MK1 9NPFebruary 2026 MK1 9NNNovember 2025 MK1 9NENovember 2024 MK1 9NDJuly 2024 MK1 9NAJune 2024

Where the new postcodes lie together

10 new postcodes since 2020, outlined on the map. MK1 9NP, is the newest of them.

What broadband can you get in MK1?

Ofcom reports on 77 of the 105 postcodes in MK1. At 55 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit55 of 77

Postcodes where every home can get superfast66 of 77

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 MK1 at risk of flooding?

None of the 105 postcodes in MK1 is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.

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 MK1?

HM Land Registry records 4 sales of homes in MK1 in the 12 months to August 2026: too few to give a typical price.

Detached 2 sales, too few to price
Semi-detached 1 sale, too few to price
Terraced 1 sale, too few to price

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