What does an MK77 postcode tell you?

That the address lies in the MK77 district of the MK (Milton Keynes) postcode area, and the place OS Open Names most often lists first for its postcodes is Milton Keynes. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 64 live postcodes.

MK77 postcode district

MK77, in the MK (Milton Keynes) postcode area, has 64 live and 5 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files no road under it.

postcode area	MK (Milton Keynes)
live postcodes	64
terminated postcodes	5
sectors	1
roads listed	0
centroid	52.04152, -0.81728
directory release	2026-08

Postcodes and sectors

64 of the district's 69 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 52.04152, -0.81728, which locates the district, not a building.

sector	live	terminated
MK77 1	64	5

Places OS Open Names lists for MK77

Milton Keynes
South East
Bletchley

Roads filed under MK77

OS Open Names files no road under MK77, so a street here cannot be confirmed from the register and the lookup answers about the postcode alone.

Check an address in MK77

Common questions about MK77

What does an MK77 postcode tell you?: That the address lies in the MK77 district of the MK (Milton Keynes) postcode area, and the place OS Open Names most often lists first for its postcodes is Milton Keynes. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 64 live postcodes.

Where the counts come from

ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest MK77

MK81.1 km
MK121.9 km
MK111.9 km
MK132.7 km
MK53.2 km
MK94.2 km
MK194.7 km
MK44.8 km
MK144.9 km
MK65.3 km
MK156.2 km
MK37.0 km
Every district
How a British address is written
Check any address

distance between the districts' centroids

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