|— Village —|
|• Total||0.36 sq mi (0.93 km2)|
|• Land||0.36 sq mi (0.93 km2)|
|• Water||0 sq mi (0 km2)|
|Elevation||971 ft (296 m)|
|• Estimate (2011)||502|
|• Density||1,391.7/sq mi (537.3/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|GNIS feature ID||1061498|
||This section needs additional citations for verification. (January 2008)|
The village of McGuffey, home of the first chartered agricultural workers' union and one of the largest agricultural workers' strikes in national history, was honored with a historical marker in August 1999 by the Ohio Bicentennial Commission. At the turn of the 20th century, the Scioto Marsh just outside of McGuffey had become a center of onion trade in the United States. In support of the onion workers, the American Federation of Labor (AFL) helped create the first chartered agricultural workers' union. Intolerable working conditions and low wages caused hundreds of workers to leave the fields in July 1934 and pour into McGuffey, leading to one of the most tumultuous strikes in Ohio history.
McGuffey is located at (40.693352, -83.785881).
2010 census 
As of the census of 2010, there were 501 people, 192 households, and 131 families residing in the village. The population density was 1,391.7 inhabitants per square mile (537.3 /km2). There were 229 housing units at an average density of 636.1 per square mile (245.6 /km2). The racial makeup of the village was 96.6% White, 0.6% African American, 0.4% Native American, 0.4% Asian, and 2.0% from two or more races. Hispanic or Latino of any race were 0.2% of the population.
There were 192 households out of which 40.6% had children under the age of 18 living with them, 41.1% were married couples living together, 19.3% had a female householder with no husband present, 7.8% had a male householder with no wife present, and 31.8% were non-families. 28.1% of all households were made up of individuals and 16.1% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.07.
The median age in the village was 35.6 years. 26.7% of residents were under the age of 18; 9.9% were between the ages of 18 and 24; 25.6% were from 25 to 44; 24% were from 45 to 64; and 14% were 65 years of age or older. The gender makeup of the village was 46.1% male and 53.9% female.
2000 census 
As of the census of 2000, there were 522 people, 207 households, and 138 families residing in the village. The population density was 1,426.6 people per square mile (544.7/km²). There were 235 housing units at an average density of 642.3 per square mile (245.2/km²). The racial makeup of the village was 97.70% White, 1.34% Native American, 0.19% Asian, 0.19% from other races, and 0.57% from two or more races. Hispanic or Latino of any race were 0.77% of the population.
There were 207 households out of which 31.9% had children under the age of 18 living with them, 44.9% were married couples living together, 15.0% had a female householder with no husband present, and 32.9% were non-families. 27.5% of all households were made up of individuals and 13.0% had someone living alone who was 65 years of age or older. The average household size was 2.52 and the average family size was 2.98.
In the village the population was spread out with 28.4% under the age of 18, 9.2% from 18 to 24, 27.2% from 25 to 44, 20.1% from 45 to 64, and 15.1% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 96.2 males. For every 100 females age 18 and over, there were 95.8 males.
The median income for a household in the village was $22,024, and the median income for a family was $25,313. Males had a median income of $26,875 versus $22,000 for females. The per capita income for the village was $10,626. About 12.3% of families and 19.7% of the population were below the poverty line, including 23.0% of those under age 18 and 7.6% of those age 65 or over.
- "US Gazetteer files 2010". United States Census Bureau. Retrieved 2013-01-06.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "American FactFinder". United States Census Bureau. Retrieved 2013-01-06.
- "Population Estimates". United States Census Bureau. Retrieved 2013-01-06.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.