Pine Flat first appeared as a
census designated place in the
2010 U.S. census. The whole population lived in households. There were 96 households, out of which 22 (22.9%) had children under the age of 18 living in them, 59 (61.5%) were married-couple households, 4 (4.2%) were
cohabiting couple households, 17 (17.7%) had a female householder with no partner present, and 16 (16.7%) had a male householder with no partner present. 15 households (15.6%) were one person, and 12 (12.5%) were one person aged 65 or older. The average household size was 2.15. The age distribution was 24 people (11.7%) under the age of 18, 8 people (3.9%) aged 18 to 24, 45 people (21.8%) aged 25 to 44, 43 people (20.9%) aged 45 to 64, and 86 people (41.7%) who were 65years of age or older. The median age was 59.4years. There were 121 males and 85 females. There were 263 housing units at an average density of , of which 96 (36.5%) were occupied. Of these, 68 (70.8%) were owner-occupied, and 28 (29.2%) were occupied by renters. ==Education==