sentences:  The entire constituency is located within Nairobi County, and has an area of 135.33 km².It borders Ruaraka, Embakasi Central, Embakasi North Embakasi East constituencies to the south, Roysambu constituency to the west, Ruiru constituency to the north and Kangundo constituency to the east.The constituency was known as Nairobi Northeast Constituency at the 1963 and 1969 elections and as Mathare Constituency from 1974 elections to 1994 by-elections.