This table breaks down all the 47 Counties in Kenya and their respective County Codes. This is a resource that wasn’t readily available on Google Search (only via Wikipedia) so we are adding it with this post to make it easier for everyone Googling to find their code.

County	County Code
Mombasa	001
Kwale	002
Kilifi	003
Tana River	004
Lamu	005
Taita Taveta	006
Garissa	007
Wajir	008
Mandera	009
Marsabit	010
Isiolo	011
Meru	012
Tharaka-Nithi	013
Embu	014
Kitui	015
Machakos	016
Makueni	017
Nyandarua	018
Nyeri	019
Kirinyaga	020
Murang’a	021
Kiambu	022
Turkana	023
West Pokot	024
Samburu	025
Trans-Nzoia	026
Uasin Gishu	027
Elgeyo-Marakwet	028
Nandi	029
Baringo	030
Laikipia	031
Nakuru	032
Narok	033
Kajiado	034
Kericho	035
Bomet	036
Kakamega	037
Vihiga	038
Bungoma	039
Busia	040
Siaya	041
Kisumu	042
Homa Bay	043
Migori	044
Kisii	045
Nyamira	046
Nairobi County	047