Mexican Colony first appeared as a
census designated place in the
2010 U.S. census. The whole population lived in households. There were 72 households, out of which 37 (51.4%) had children under the age of 18 living in them, 34 (47.2%) were married-couple households, 12 (16.7%) were
cohabiting couple households, 6 (8.3%) had a female householder with no partner present, and 20 (27.8%) had a male householder with no partner present. 15 households (20.8%) were one person, and 4 (5.6%) were one person aged 65 or older. The average household size was 3.93. The age distribution was 107 people (37.8%) under the age of 18, 38 people (13.4%) aged 18 to 24, 55 people (19.4%) aged 25 to 44, 62 people (21.9%) aged 45 to 64, and 21 people (7.4%) who were 65years of age or older. The median age was 23.6years. For every 100 females, there were 122.8 males. There were 73 housing units at an average density of , of which 72 (98.6%) were occupied. Of these, 17 (23.6%) were owner-occupied, and 55 (76.4%) were occupied by renters. ==References==