Eneo bunge la Kwanza ni mojawapo ya Majimbo ya Uchaguzi nchini Kenya. Ni moja kati ya Majimbo matano katika Kaunti ya Trans-Nzoia. Jimbo hili lina wodi saba, kila moja ikichagua madiwani kwa baraza la Kaunti. Jimbo hili lilianzishwa wakati wa Uchaguzi Mkuu wa 1988. Maeneo bunge ya Kenya Uchaguzi Mkuu wa Kenya, 1992 Uchaguzi Mkuu wa Kenya, 1997 Uchaguzi Mkuu wa Kenya, 2002 Center for Multiparty Democracy: Politics and Parliamenterians in Kenya 1944-2007 Archived 28 Februari 2008 at the Wayback Machine. Daily Nation, 17 Aprili 2000: Kanu loss in by-election more than a triumph for opposition party Electoral Commission of Kenya: Registered voters per polling station by electoral area/ward and constituency