Sierra Brooks first appeared as a
census designated place in the
2010 U.S. census. The whole population lived in households. There were 184 households, out of which 64 (34.8%) had children under the age of 18 living in them, 114 (62.0%) were married-couple households, 9 (4.9%) were
cohabiting couple households, 35 (19.0%) had a female householder with no partner present, and 26 (14.1%) had a male householder with no partner present. 32 households (17.4%) were one person, and 16 (8.7%) were one person aged 65 or older. The average household size was 2.54. The age distribution was 116 people (24.8%) under the age of 18, 10 people (2.1%) aged 18 to 24, 102 people (21.8%) aged 25 to 44, 133 people (28.5%) aged 45 to 64, and 106 people (22.7%) who were 65years of age or older. The median age was 46.8years. For every 100 females, there were 99.6 males. There were 206 housing units at an average density of , of which 184 (89.3%) were occupied. Of these, 176 (95.7%) were owner-occupied, and 8 (4.3%) were occupied by renters. ==Politics==