The circles on the map above are the postcode unit 'centriods' from Code-Point Open, under the Open Government Licence. The 'centriod' is calculated by taking the average of the coordinates of all the delivery points with that postcode, and then snapping that location to the nearest delivery point in that postcode. The data may be freely used in OpenStreetMap, but please make sure you understand it first. Also please only add postcodes to objects representing addressable entities; do not add the postcode centroids as themslves. Suggested source tag code-point_open
The circles are coloured by whether or not there is at least one OSM object with that value in its addr:postcode tag. Click on a point to see the postcode. The numbers in brackets are the number of OSM objects with that postcode.
The centroids are the location of the nearest 'delivery point' to the arithmetic mean of the coordinates of all the delivery points within that unit. Those points with a codepoint PQI greater than 40 are excluded from the map above. (Higher values are typically not geographically accurate. In particular, PQI=50 is used for new postcodes before the location has been determined. The location given for such postcodes seems to be derived from other existing postcodes with similar units letters, which may not be close to the new postcode.)
The pale blue lines from the circles join each Code-Point Open centroid to the mean coordiantes of all the OSM objects with that postcode. (For ways an relations, the centre of the rectangular bounding box is used at the coordinates for the OSM object.) Long lines may indicate missing or incorrect OSM objects for that postcode. In particular, if all the postcodes in a givne unit are correctly mapped, the circle should be located on the nearest delivery point within that postcode to the other end of the blue line.
The OSM data for the number of objects with each unit comes from Taginfo GB. It is usually updated once a day at about 10:15 UTC, with data from about 20:30 UTC the previous day. (Current data is from 1970‑01‑01 00:00:00 Z.) The data used to compute the OSM mean position comes from the Overpass API and is updated less frequently, usually about once a week. (Current data is from 2024‑03‑23 18:50:30 Z.)
District | Sector | Units | Geo. Units | Mapped | % |
---|---|---|---|---|---|
CB4 | 0 | 50 | 50 | 49 | 98.0% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
CB4 0AB | 10 | Cambridge Science Park | 3 | 1 | ||
CB4 0AE | 10 | Milton Avenue | 2 | |||
CB4 0AF | 50 | 3 | 0 | |||
CB4 0AJ | 10 | 2015‑10 | 0 | |||
CB4 0AP | 10 | Cowley Road | 2 | |||
CB4 0DL | 10 | Cowley Road | 29 | |||
CB4 0DN | 10 | Cowley Road | 21 | |||
CB4 0DP | 10 | Milton Road | 1 | |||
CB4 0DS | 10 | St John's Innovation Park | 5 | |||
CB4 0DT | 10 | Cowley Road | 1 | |||
CB4 0DW | 10 | Cambridge Science Park | 2 | |||
CB4 0EY | 10 | 2020‑07 | Cambridge Science Park | 1 | ||
CB4 0FB | 10 | 2019‑12 | Cambridge Science Park | 0 | ||
CB4 0FE | 10 | 2020‑07 | Cambridge Science Park | 0 | ||
CB4 0FG | 10 | 2013‑07 | 0 | |||
CB4 0FH | 10 | 2020‑07 | Cambridge Science Park | 0 | ||
CB4 0FJ | 10 | Cambridge Science Park | 2 | |||
CB4 0FN | 10 | Cambridge Science Park | 3 | |||
CB4 0FP | 10 | Cambridge Science Park | 4 | |||
CB4 0FQ | 10 | 2020‑07 | Cambridge Science Park | 0 | ||
CB4 0FR | 10 | 2013‑07 | Cambridge Science Park | 0 | ||
CB4 0FW | 10 | Cambridge Science Park | 2 | |||
CB4 0FX | 10 | Cambridge Science Park | 2 | |||
CB4 0FY | 10 | Cambridge Science Park | 5 | |||
CB4 0FZ | 10 | Cambridge Science Park | 7 | |||
CB4 0GA | 10 | Cambridge Science Park | 3 | |||
CB4 0GD | 10 | Cambridge Science Park | 1 | |||
CB4 0GF | 10 | Cambridge Science Park | 4 | |||
CB4 0GH | 10 | Cambridge Science Park | 3 | |||
CB4 0GJ | 10 | Cambridge Science Park | 1 | |||
CB4 0GL | 10 | 0 | ||||
CB4 0GN | 10 | Cambridge Science Park | 8 | |||
CB4 0GP | 10 | 2015‑10 | Cambridge Science Park | 1 | ||
CB4 0GQ | 10 | Cambridge Science Park | 2 | |||
CB4 0GU | 10 | 0 | ||||
CB4 0GW | 10 | Cambridge Science Park | 3 | 4 | ||
CB4 0GZ | 10 | Cambridge Science Park | 6 | |||
CB4 0HB | 10 | 0 | ||||
CB4 0HD | 10 | 0 | ||||
CB4 0HE | 10 | 0 | ||||
CB4 0HH | 10 | Cambridge Business Park | 1 | |||
CB4 0JL | 50 | 2022‑06 | Cambridge Business Park | 2 | 1 | |
CB4 0PE | 10 | Cambridge Science Park | 2 | |||
CB4 0PP | 10 | Cowley Road | 1 | |||
CB4 0PZ | 10 | Cambridge Science Park | 2 | |||
CB4 0QA | 10 | Cambridge Science Park | 3 | |||
CB4 0WA | 10 | Cambridge Science Park | 5 | |||
CB4 0WB | 10 | Cambridge Science Park | 2 | |||
CB4 0WD | 10 | Cambridge Science Park | 2 | |||
CB4 0WE | 10 | Cambridge Science Park | 4 | |||
CB4 0WF | 10 | Cambridge Science Park | 1 | |||
CB4 0WG | 10 | Cambridge Science Park | 10 | |||
CB4 0WH | 10 | Cambridge Science Park | 2 | |||
CB4 0WN | 10 | Cambridge Science Park | 6 | |||
CB4 0WP | 10 | 0 | ||||
CB4 0WS | 10 | Cowley Road | 3 | |||
CB4 0WT | 10 | Cambridge Business Park | 1 | |||
CB4 0WU | 10 | Cowley Road | 2 | 1 | ||
CB4 0WW | 10 | Cambridge Science Park | 2 | |||
CB4 0WX | 10 | Cowley Road | 2 | 6 | ||
CB4 0WY | 10 | Cowley Road | 1 | |||
CB4 0WZ | 10 | Cambridge Business Park | 14 | |||
CB4 0XB | 10 | Cambridge Business Park | 1 | |||
CB4 0XJ | 10 | 2016‑10 | 220 | 0 | ||
CB4 0XL | 10 | Cambridge Science Park | 4 | |||
CB4 0XR | 10 | 2022‑10 | Cambridge Science Park | 2 | ||
CB4 0XW | 10 | 2019‑07 | 220 | 0 | ||
CB4 0ZR | 10 | 2013‑07 | 3 | 0 | ||
CB4 0ZT | 10 | St John's Innovation Park | 2 | 1 |
Units with street mismatches in this sector:
Unit | Mapped | Dominant Street | OSM Object | Tagged Street |
---|---|---|---|---|
CB4 0AE | 2 | Milton␣Avenue | w496339910 | Cambridge␣Square |
CB4 0DL | 29 | Cowley␣Road | n5591269808 | Cambridge␣Commercial␣Park |
CB4 0DL | 29 | Cowley␣Road | n5591269807 | Cambridge␣Commercial␣Park |
CB4 0DS | 5 | St␣John's␣Innovation␣Park | w625168152 | |
CB4 0DS | 5 | St␣John's␣Innovation␣Park | w249922209 | Cowley␣Road |
CB4 0FN | 3 | Cambridge␣Science␣Park | w48205172 | |
CB4 0FZ | 7 | Cambridge␣Science␣Park | w4013874 | Milton␣Road |
CB4 0GZ | 6 | Cambridge␣Science␣Park | w262515298 | Science␣Park |
CB4 0WS | 3 | Cowley␣Road | w263621287 | St␣John's␣Innovation␣Park |
CB4 0WZ | 14 | Cambridge␣Business␣Park | n3725965718 | Cowley␣Park␣Road |