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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 70801 61.3% 2019‑11‑14
OSM (matched refs) 55439 48.0% 2019‑11‑14

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. IP9 16
2. EC3R 5
3. WC1X 4
4. NG9 3
5. WF11 3
6. ML11 3
7. W2 3
# Username Updates %Ref'd
1. smb1001 16 100%
2. fitzsimons 10 100%
3. SK53 4 0%
4. Belahzur 4 100%
5. Robert Whittaker 3 100%
6. Martin Constantino–Bodin 3 33%
7. RedRocker87 3 0%

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

# District Updates
1. TW9 16
2. IP9 16
3. IP14 12
4. IP6 11
5. IP7 11
6. W2 8
7. IP13 7
8. WC1X 6
9. EC3R 5
10. HR2 5
11. NW6 5
12. DE4 5
13. CH1 4
14. LA11 4
# Username Updates %Ref'd
1. Robert Whittaker 103 84%
2. smb1001 59 98%
3. Hobgoblin 21 100%
4. robbieonsea 19 100%
5. Djminisite 12 75%
6. Belahzur 11 82%
7. caranteth 11 55%
8. fitzsimons 10 100%
9. mueschel 9 100%
10. Mikhail1412 8 100%
11. eteb3 8 0%
12. Pink Duck 7 14%
13. Martin Constantino–Bodin 7 43%
14. alpman 7 29%

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