SP	GL	NLR
Zone Types	Origin–destination subzones	Transport for London zones	4-digit postcodes
Zones (n)	1,308	3,289	1,031
After listwise deletiona	1,286	3,134	9,72
Total Area (km2)	1,521 km²	1,572 km²	5,327 km²
Total Population (16–64)b	7,805,636	5,440,207	5,305,710
Total Jobsc	4,729,358	3,917,847	3,582,596