Myers Flat was founded by the Myers family in the mid-19th century. The Myerses were some of the first homesteaders in the area, growing apples, pears, sweet potatoes, and corn.^[7] The town initially served as a coach stop for travelers on their way to San Francisco. The Morrison-Jackson mill was started and remained active for a long time – until the mid-1980s, when the mill closed down. The old mill site and most of its land are now a part of Riverbend Cellars and much of the land is covered in grape vineyards. Much of the town was destroyed in the Christmas flood of 1964. Because of its low elevation and proximity to the Eel River, the town still has problems with flooding. The town lies below the 100-year flood line. Much of the town consists of trailers and cabins, and some people have homes built to withstand floodwaters.

The 2010 United States Census^[8] reported that Myers Flat had a population of 146. The population density was 299.8 inhabitants per square mile (115.8/km²). The racial makeup of Myers Flat was 125 (85.6%) White, 0 (0.0%) African American, 6 (4.1%) Native American, 1 (0.7%) Asian, 0 (0.0%) Pacific Islander, 4 (2.7%) from other races, and 10 (6.8%) from two or more races. Hispanic or Latino of any race were 11 persons (7.5%).

The Census reported that 146 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.

There were 80 households, out of which 15 (18.8%) had children under the age of 18 living in them, 13 (16.3%) were opposite-sex married couples living together, 6 (7.5%) had a female householder with no husband present, 9 (11.3%) had a male householder with no wife present. There were 9 (11.3%) unmarried opposite-sex partnerships, and 0 (0%) same-sex married couples or partnerships. 43 households (53.8%) were made up of individuals, and 7 (8.8%) had someone living alone who was 65 years of age or older. The average household size was 1.83. There were 28 families (35.0% of all households); the average family size was 2.68.

The population was spread out, with 20 people (13.7%) under the age of 18, 14 people (9.6%) aged 18 to 24, 33 people (22.6%) aged 25 to 44, 64 people (43.8%) aged 45 to 64, and 15 people (10.3%) who were 65 years of age or older. The median age was 46.7 years. For every 100 females, there were 97.3 males. For every 100 females age 18 and over, there were 100.0 males.

There were 110 housing units at an average density of 225.9 per square mile (87.2/km²), of which 80 were occupied, of which 40 (50.0%) were owner-occupied, and 40 (50.0%) were occupied by renters. The homeowner vacancy rate was 9.1%; the rental vacancy rate was 0%. 82 people (56.2% of the population) lived in owner-occupied housing units and 64 people (43.8%) lived in rental housing units.

Because of its location at the southern entrance to Humboldt Redwoods State Park, the town receives much tourism during the summer months.

In the California State Legislature, Myers Flat is in the 2nd Senate District, represented by Democrat Mike McGuire,^[9] and the 2nd Assembly District, represented by Democrat Jim Wood.^[10]

In the United States House of Representatives, Myers Flat is in California's 2nd congressional district, represented by Democrat Jared Huffman.^[11]

This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F (22.0 °C). According to the Köppen Climate Classification system, Myers Flat has a warm-summer Mediterranean climate, abbreviated Csb on climate maps.^[12]

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