How thoroughly have you researched this? The University of Michigan reports a 25th percentile English-section ACT score of 31 on its CDS, for example.
In general, you can regard your 34 composite score as your “true” score with which to compare yourself to most college profiles, in that none of your section scores diverge to a great degree from this level. Since English represents an important subsection, however, a score below the 25th percentile could make admission additionally challenging at the few highly selective colleges for which this may be the case.