We identify the rich Carbon star population of the Magellanic-type dwarf irregular galaxy WLM ( Wolf-Lundmark-Melotte ) and study its photometric properties from deep near-IR observations . The galaxy exhibits also a clear presence of Oxygen rich population . We derive a Carbon to M-star ratio of C/M =0.56 \pm 0.12 , relatively high in comparison with many galaxies . The spatial distribution of the AGB stars in WLM hints at the presence of two stellar complexes with a size of a few hundred parsecs . Using the H i map of WLM and the derived gas-to-dust ratio for this galaxy N ( H i ) /E ( B - V ) =60 \pm 10 [ 10 ^ { 21 } at . cm ^ { -2 } mag ^ { -1 } ] we re-determined the distance modulus of WLM from the IR photometry of four known Cepheids , obtaining ( m - M ) _ { 0 } =24.84 \pm 0.14 mag . In addition , we determine the scale length of 0.75 \pm 0.14 kpc of WLM disk in J -band .