To be the most focused facilitator of equitable and sustainable development and provider of local quality services in the country.
The population of the whole municipality according to the 1999 census was 47,971 people. And according to a Physical Development research project of 2004 the total population was 61,809 people.
The population growth rate for municipality is 1.7% and for Athi River Township is 5.2%.
The population of the town grows in the evening because of factory workers who break from work and also workers from Nairobi who reside in Athi-River making Mavoko a dormitory of Nairobi.