Rob's OSM Stuff » UK Addresses » Postcode Stats » SL » SL1

OSM Postcode Stats for SL1 Postal District

Rank	Sector	NG	Units	Geo. Units	Mapped	%
1	SL1 4		102	95	65	68.4%
2	SL1 1		180	176	59	33.5%
3	SL1 3		252	250	58	23.2%
4	SL1 6		122	121	11	9.1%
5	SL1 5		250	247	19	7.7%
6	SL1 2		277	274	16	5.8%
7	SL1 7		126	126	5	4.0%
8	SL1 8		161	160	4	2.5%
9	SL1 9		57	57	1	1.8%
10	SL1 0	*	109	1	0	0.0%
Totals			1636	1507	238	15.8%

Explanation of the columns in the table above:

S0: The number of sectors (excluding non-geographic sectors) for which there are no valid postcodes in OSM. So if s0=0, every sector has at least one unit appearing at least once in OSM.
S5: The number of sectors (excluding non-geographic sectors) for which fewer then 5% of the geographic units appear on at least one object in OSM. So if s5=0, then every sector has at least 5% of its geographic units appearing at least once in OSM.
Units: The total number of units (individual postcodes) listed in Code-Point Open
Geo. Units: An estimate of the number of geographic units, computed as follows: The number of postal units which either exist in OSM or have fewer than 5 or more other units with the same coordinates in Code-Point Open. This is designed to exclude PO Box units that are located at Royal Mail Delivery Offices.
Mapped: The number of unique valid units appearing as an addr:postcode value in OSM.
%: OSM progress towards mapping at least one example of each unit, measured against the number of geographic units.

Data derived from OpenStreetMap data, © OpenStreetMap Contributors, licensed under Open Data Commons Open Database License (ODbL). Data derived in part using Code-Point Open under the Open Government Licence v3; Contains OS data © Crown copyright and database right 2020; Contains Royal Mail data © Royal Mail copyright and Database right 2016; Contains National Statistics data © Crown copyright and database right 2020.