Editing Middletown, California (section)

===2010===
At the [[2010 United States Census|2010 census]] Middletown had a population of 1,323. The population density was {{convert|717.4|PD/sqmi|PD/km2|sp=us|adj=off}}. The racial makeup of Middletown was 985 (74.5%) White, 5 (0.4%) African American, 28 (2.1%) Native American, 18 (1.4%) Asian, 0 (0.0%) Pacific Islander, 225 (17.0%) from other races, and 62 (4.7%) from two or more races.  Hispanic or Latino of any race were 413 people (31.2%).<ref>{{cite web|url=http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0647332|archive-url=https://archive.today/20140715031509/http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0647332|url-status=dead|archive-date=July 15, 2014|title=2010 Census Interactive Population Search: CA - Middletown CDP|publisher=U.S. Census Bureau|access-date=July 12, 2014}}</ref>

The census reported that 1,317 people (99.5% of the population) lived in households, 6 (0.5%) lived in non-institutionalized group quarters, and no one was institutionalized.

There were 508 households; 189 (37.2%) had children under the age of 18 living in them, 223 (43.9%) were [[marriage|opposite-sex married couples]] living together, 72 (14.2%) had a female householder with no husband present, 41 (8.1%) had a male householder with no wife present.  There were 36 (7.1%) [[POSSLQ|unmarried opposite-sex partnerships]], and 4 (0.8%) [[same-sex partnerships|same-sex married couples or partnerships]]. 140 households (27.6%) consisted of a single person and 52 (10.2%) had someone living alone who was 65 or older. The average household size was 2.59.  There were 336 families (66.1% of households); the average family size was 3.15.

The age distribution was 376 people (28.4%) under the age of 18, 114 people (8.6%) aged 18 to 24, 309 people (23.4%) aged 25 to 44, 374 people (28.3%) aged 45 to 64, and 150 people (11.3%) who were 65 or older.  The median age was 37.4 years. For every 100 females, there were 102.9 males.  For every 100 females age 18 and over, there were 103.2 males.

There were 557 housing units at an average density of 302.0 per square mile; of the occupied units, 251 (49.4%) were owner-occupied and 257 (50.6%) were rented. The homeowner vacancy rate was 3.8% and the rental vacancy rate was 4.1%.  659 people (49.8% of the population) lived in owner-occupied housing units and 658 people (49.7%) lived in rental housing units.