| Value | Category |
|---|---|
| 00 | Nairobi |
| 01 | Kiambu |
| 02 | Kirinyaga |
| 03 | Muranga |
| 04 | Nyandarua |
| 05 | Nyeri |
| 06 | Other Central province |
| 07 | Kilifi |
| 08 | Kwale |
| 09 | Lamu |
| 10 | Monbasa |
| 11 | Taita |
| 12 | Tana River |
| 13 | Other Coast province |
| 14 | Embu |
| 15 | Isiolo |
| 16 | Kitui |
| 17 | Mackakos |
| 18 | Marsabit |
| 19 | Meru |
| 20 | Other Eastern province |
| 21 | Garissa |
| 22 | Mandera |
| 23 | Wajir |
| 24 | Other North Eastern province |
| 25 | Kisii |
| 26 | Kisumu |
| 27 | Siaya |
| 28 | South Nyanza |
| 29 | Other Nyanza |
| 30 | Baringo |
| 31 | Elgeyo Karakwet |
| 32 | Kajiado |
| 33 | Kericho |
| 34 | Laikipia |
| 35 | Nakuru |
| 36 | Nandi |
| 37 | Narok |
| 38 | Samburu |
| 39 | Trans Nzoia |
| 40 | Turkana |
| 41 | Uasin Gishu |
| 42 | West Pokot |
| 43 | Other Rift Valley |
| 44 | Bungoma |
| 45 | Busia |
| 46 | Kakamega |
| 47 | Other Western province |
| 48 | Other Kenya |
| 49 | Tanzania |
| 50 | Uganda |
| 51 | Rwanda |
| 52 | Burundi |
| 53 | Somalia |
| 54 | Ethiopia |
| 55 | Sudan |
| 56 | Congo |
| 57 | Other African country |
| 58 | UK and Ireland |
| 59 | Other European |
| 60 | USA |
| 61 | Other American |
| 62 | Australia, New Zealand, and Oceania |
| 63 | India |
| 64 | Pakistan |
| 65 | Arabia and Persia |
| 66 | Other Asian countries |
| 67 | Not stated |