The 6C survey of radio sources. VI. The continuous zone30<delta<51, Oh<alpha<09h05m and 22h<alpha<24h.

This paper complements Paper II of the series on the 6C survey of radio sources, presenting the remainder of the strip 30^deg^ < δ < 51^deg^ which extends the coverage into the regions of lower Galactic latitude at these declinations. The observations made and the data reduction methods and other conventions adopted for the strip are fully described in that paper; details will not be repeated except where they differ or require comment. The data here presented consist of 192 pages of maps covering the continuous region 30^deg^ < δ < 51^deg^, 0^h^< α < 09^h^05^m^ and 22^h^35^m^ < α < 24^h^, together with a corresponding list of 6752 sources in the 2440 deg^2^ covered. The region has some right ascension overlap with the zone 30^deg^ < δ < 51^deg^, 08^h^ 30^m^ < α < 17^h^30^m^ covered in Paper II, so that 199 sources have alternative entries in that list. Furthermore,the subarea 48^deg^ < δ < 51^deg^, ~2^h^ < α < 09^h^ 05^m^ is also covered in Papers III and V of this series.