|Motto: Toothpick Capital of the World|
|• Total||28.94 sq mi (74.95 km2)|
|• Land||28.35 sq mi (73.43 km2)|
|• Water||0.59 sq mi (1.53 km2)|
|Elevation||741 ft (226 m)|
|• Estimate (2012)||1,208|
|• Density||42.8/sq mi (16.5/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|GNIS feature ID||0582753|
The plantation was called Township No. 3, First Range North of Plymouth Claim, West of Kennebec River (or T3 R1 NPC WKR), then successively known as Middletown and Readstown. It was first settled in 1784 by William Read from Nobleboro. Readstown was incorporated on January 31, 1801 and named for Caleb Strong, governor of Massachusetts. The Maine Republican Party was founded here on August 7, 1854.
Set on a hilly intervale above a big bend in the Sandy River, the area provided fertile soil for agriculture. Farmers grew hay, wheat, corn, oats and potatoes. The northeast branch of the Sandy River provided water power for mills, helping make Strong prosperous. By 1859, when the population was 1,008, it had sawmills, a gristmill, a fulling mill, a carding machine, a starch factory and a tannery.
The narrow gauge Sandy River Railroad connected Farmington and Phillips in 1879. By 1886, town industries included a boot and shoe factory, machine shops, a cheese factory, a clothespin manufacturer, a maker of cane seat chair bottoms, and an excelsior factory. It was noted as "one of the prettiest villages in the county." 
According to the United States Census Bureau, the town has a total area of 28.94 square miles (74.95 km2), of which, 28.35 square miles (73.43 km2) of it is land and 0.59 square miles (1.53 km2) is water. Strong is located above a bend in the Sandy River, a tributary of the Kennebec River.
As of the census of 2010, there were 1,213 people, 496 households, and 339 families residing in the town. The population density was 42.8 inhabitants per square mile (16.5 /km2). There were 634 housing units at an average density of 22.4 per square mile (8.6 /km2). The racial makeup of the town was 97.1% White, 0.4% African American, 0.5% Native American, 0.2% Asian, 0.1% Pacific Islander, and 1.6% from two or more races. Hispanic or Latino of any race were 1.2% of the population.
There were 496 households of which 30.8% had children under the age of 18 living with them, 54.0% were married couples living together, 9.5% had a female householder with no husband present, 4.8% had a male householder with no wife present, and 31.7% were non-families. 23.2% of all households were made up of individuals and 11.3% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.85.
The median age in the town was 41.5 years. 22.5% of residents were under the age of 18; 7.8% were between the ages of 18 and 24; 24.3% were from 25 to 44; 30.1% were from 45 to 64; and 15.4% were 65 years of age or older. The gender makeup of the town was 51.2% male and 48.8% female.
As of the census of 2000, there were 1,259 people, 498 households, and 343 families residing in the town. The population density was 43.8 people per square mile (16.9/km²). There were 614 housing units at an average density of 21.4 per square mile (8.3/km²). The racial makeup of the town was 99.21% White, 0.16% African American, 0.32% Native American, 0.08% Asian, 0.08% from other races, and 0.16% from two or more races. Hispanic or Latino of any race were 1.27% of the population.
There were 498 households out of which 30.7% had children under the age of 18 living with them, 54.2% were married couples living together, 9.8% had a female householder with no husband present, and 31.1% were non-families. 23.3% of all households were made up of individuals and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 2.92.
In the town the population was spread out with 25.3% under the age of 18, 7.0% from 18 to 24, 26.8% from 25 to 44, 26.5% from 45 to 64, and 14.3% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 98.3 males. For every 100 females age 18 and over, there were 89.9 males.
The median income for a household in the town was $30,568, and the median income for a family was $36,250. Males had a median income of $26,111 versus $18,636 for females. The per capita income for the town was $14,232. About 9.0% of families and 15.3% of the population were below the poverty line, including 17.3% of those under age 18 and 10.7% of those age 65 or over.
- Elizabeth Chase Allen, author, journalist, poet
- Ben C. Eastman, US congressman
- John A. Eastman, Wisconsin state senator
- James Porter (1847–1876), military officer who died at Custer's Last Stand
- "US Gazetteer files 2010". United States Census Bureau. Retrieved 2012-12-16.
- "American FactFinder". United States Census Bureau. Retrieved 2012-12-16.
- "Population Estimates". United States Census Bureau. Retrieved 2013-07-06.
- "STRONG COMMUNITY PROFILE". www.epodunk.com. Retrieved 2007-04-21.
- Maine League of Historical Societies and Museums (1970). Doris A. Isaacson, ed. Maine: A Guide 'Down East'. Rockland, Me: Courier-Gazette, Inc. p. 389.
- Coolidge, Austin J.; John B. Mansfield (1859). A History and Description of New England. Boston, Massachusetts. pp. 318–319.
- George J. Varney, History of Strong, Maine, Boston, Massachusetts 1886
- "Toothpick Capital of the World". The Center For Land Use Interpretation. Retrieved 2007-04-21.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.