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Post Hoc — Analysing UK OSM Postbox Data

OpenStreetMap records the location of postboxes using the amenity=post_box tag. The Post Hoc tool provides statistics, reports and maps to compare the data in OpenStreetMap with data from Royal Mail and from Matthew Somerville's former 'Locating Postboxes' webapp. The Royal Mail Post Box data comes an FOI request. For further information, please see the Technical Details page.

Postbox Summary Statistics

Source Boxes Percent Updated
Royal Mail list 115485   2013‑11‑11
OSM 68734 59.5% 2019‑04‑22
OSM (matched refs) 53234 46.1% 2019‑04‑22

View history graphs.

Local maps showing potential issues to survey

OSM Post Box Progress
View the progress of mapping all post boxes by postal area and then district. At district level a map shows a comparison between official location data from Royal Mail and current OSM data. Discrepencies are highlighted for ground surveys. Note that the official locations are © Royal Mail, and we do not have permission to use them in OSM.
Local Post Box Comparison
Enter a postal district (first half of a postcode) in the box below to view a comparison between an official Post Box list and the current OSM data. Discrepencies are highlighted for ground surveys, and a GPX file can be exported. Note that the official locations are © Royal Mail, and we do not have permission to use them in OSM.
Postal district:
Local Post Office Comparison
Functionality has now moved to the new Post Office Progress Tool.

General Postbox Reports

OSM Reference Issues
Results of various checks on the values in 'ref' fields of post box nodes on OpenStreetMap.
OSM Collection Times Issues
Postboxes with possible errors in the collection_times key.
OSM Royal Cypher Issues
Postboxes with possible errors in the royal_cypher key.
OSM Box Type Report
Report on usage of tags to describe box types.
OSM Operator Report
Report on usage of tags to describe the operator of the box.
OSM Tag Keys Report
List of all keys used on post box nodes, ordered by number of occurrences.
OSM Tag Lists
Various reports listing postboxes with specific tags defined:

General Post Office Reports

These reports have now moved to the Post Office Tools page.

Post Box League Tables

Top postal districts and users by updates to post box nodes in last 7 days.

# District Updates
1. NN10 29
2. NN9 29
3. NN14 27
4. BH19 20
5. B29 19
6. B30 18
7. B14 16
# Username Updates %Ref'd
1. smb1001 125 100%
2. RAC_UK 91 100%
3. manof25 40 100%
4. robbieonsea 39 95%
5. southglos 17 12%
6. Hobgoblin 15 100%
7. Robert Whittaker 10 90%

Top postal districts and users by updates to post box nodes in last 28 days.

# District Updates
1. NN9 30
2. NN10 29
3. NN14 27
4. B77 26
5. B31 21
6. BH19 20
7. B29 19
8. B30 19
9. KT20 17
10. B14 16
11. B36 15
12. B37 14
13. B38 13
14. GU35 13
# Username Updates %Ref'd
1. smb1001 297 100%
2. Robert Whittaker 254 83%
3. RAC_UK 91 100%
4. caranteth 53 100%
5. manof25 50 100%
6. robbieonsea 43 95%
7. fitzsimons 25 96%
8. Pink Duck 24 96%
9. southglos 20 10%
10. macroderma 17 0%
11. Hobgoblin 16 100%
12. Vombata 15 100%
13. HighlandMark 14 100%
14. brianboru 13 69%

Data derived from OpenStreetMap data, © OpenStreetMap Contributors, licensed under Open Data Commons Open Database License (ODbL). XAPI courtesy of Overpass API.