This paper examined preposition pied piping and stranding in academic and popular Nigerian English writing with a view to determining their pattern of occurrence. Preposition placement has not been studied in Nigerian English and in specific genres. The 160 246-word relevant component of ICE-Nigeria was the sub-corpus used, and the Systemic Theory guided the study. Analysed using a multi-layered qualitative approach, the data comprised 112 cases of pied piping, 64 of stranding and 4 of doubling. Pied piping was dominant over stranding in Academic Writing (78 percent v 22 percent), and stranding was 1.7 times more frequent in Popular Writing than in Academic Writing. Though evenly distributed in Popular Writing (44 each), pied piping was about twice as frequent as stranding in Popular Natural Sciences while stranding was virtually non-existent in Academic Natural Sciences. Whereas to-infinitive and passive clauses were stranding favourite sites (21 and 15 respectively), only in wh-relative clauses did pied piping operate and in which was the prominent sequence. In Academic Writing prepositions were pied-piped and stranded at an average of 3.83 and 1.82 per form respectively, but the rates were 3.31 and 3.1 in Popular Writing. Whereas in was the most pied-piped preposition and was 5.2 times more likely to be pied-piped than stranded, up was the most stranded form and its stranding relative to pied piping was infinitely more. Subtle differences in the genres’ degree of formality explain the disparities in the distribution of pied piping and stranding in the sub-corpus analysed.