[4] Beginning in 1994, Busia became an epicenter of economic research as the location of one of the first successful randomized controlled trials in development economics,[5] evaluating the efficacy of a school-based deworming program in improving health and educational outcomes.

[8] Dean Karlan, chief economist of the United States Agency for International Development, has described Busia as the "birthplace for this [the RCT] movement", with more than 27 experiments ongoing as of 2024.

There has been an outcry from the Samia people on why the colonial government decided to cut and separate them placing them in different countries.

Busia with approximately 1700 square kilometers is bordered to the south by Lake Victoria with some rivers pouring water into it.

Several swamps are also located across the county with species such as crocodiles, hippos, and multiple types of fish.

The county's climatic conditions are greatly affected by Lake Victoria which borders it to the south western part.

[10] The Kenya national languages are English and Swahili, in Busia county Swahili is commonly used but most residents speak their native mother tongue that is either Luhya or Iteso language Busia county has a total population of 893,681 persons.

Sub-Counties Sospeter Ojaamong has been governor since being first elected in 2013 and he will finish his second term in 2022 and thus not eligible to run for the seat.

[16] Florence Mwikali Mutua is the current women representative after taking office in 2013.