  We present the luminosity functions and host galaxy properties of the Dark
Energy Survey (DES) core-collapse supernova (CCSN) sample, consisting of 69
Type II and 50 Type Ibc spectroscopically and photometrically-confirmed
supernovae over a redshift range $0.045<z<0.25$. We fit the observed DES $griz$
CCSN light-curves and K-correct to produce rest-frame $R$-band light curves. We
compare the sample with lower-redshift CCSN samples from Zwicky Transient
Facility (ZTF) and Lick Observatory Supernova Search (LOSS). Comparing
luminosity functions, the DES and ZTF samples of SNe II are brighter than that
of LOSS with significances of 3.0$\sigma$ and 2.5$\sigma$ respectively. While
this difference could be caused by redshift evolution in the luminosity
function, simpler explanations such as differing levels of host extinction
remain a possibility. We find that the host galaxies of SNe II in DES are on
average bluer than in ZTF, despite having consistent stellar mass
distributions. We consider a number of possibilities to explain this --
including galaxy evolution with redshift, selection biases in either the DES or
ZTF samples, and systematic differences due to the different photometric bands
available -- but find that none can easily reconcile the differences in host
colour between the two samples and thus its cause remains uncertain.
