|Area||0.71 sq mi (2 km2)|
|- land||0.69 sq mi (2 km2)|
|- water||0.02 sq mi (0 km2)|
|Density||538.1 / km2 (1,394 / sq mi)|
|- summer (DST)||CDT (UTC-5)|
|Wikimedia Commons: Marine, Illinois|
The village was so named for the fact a share of the early settlers were sea captains.
Marine is located at (38.787365, -89.778135).
According to the 2010 census, Marine has a total area of 0.71 square miles (1.84 km2), of which 0.69 square miles (1.79 km2) (or 97.18%) is land and 0.02 square miles (0.05 km2) (or 2.82%) is water.
As of the census of 2010, there were 960 people, 393 households, and 259 families residing in the village. The population density was 1,196.3 people per square mile (462.3/km²). There were 380 housing units at an average density of 499.6 per square mile (193.1/km²). The racial makeup of the village was 97.6% White, 0.6% African American, 0.4% Native American, 0.0% Asian, 0.7% from other races, and 0.6% from two or more races. Hispanic or Latino of any race were 1.3% of the population.
There were 393 households out of which 26.7% had children under the age of 18 living with them, 53.2% were married couples living together, 7.1% had a female householder with no husband present, and 34.1% were non-families. 28.8% of all households were made up of individuals and 23.2% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 3.03.
In the village the population was spread out with 20.2% under the age of 18, 8.3% from 20 to 24, 27.0% from 25 to 44, 29.6% from 45 to 64, and 12.7% who were 65 years of age or older. The median age was 38.3 years. For every 100 females there were 97.9 males. For every 100 males age 18 and over, there were 99.5 females.
As of the 2000 census, the median income for a household in the village was $37,361, and the median income for a family was $44,500. Males had a median income of $38,654 versus $22,188 for females. The per capita income for the village was $18,133. About 4.5% of families and 6.2% of the population were below the poverty line, including 10.0% of those under age 18 and 2.8% of those age 65 or over.
- Ewald Max Hoyer, first mayor of Bossier City, Louisiana, at incorporation in 1907; born in Marine
- Jerry Neudecker, umpire for Major League Baseball (1966–85); born in Marine
- Rusty Pence, pitcher for the Chicago White Sox; born in Marine
- Mark Voigt, racer with several NASCAR starts
The mayor of Marine is John Molitor. 
Marine is part of the Triad Community Unit School District No. 2 which also includes the towns of Troy, IL and St. Jacob, IL. Marine has one elementary school which is located within the city limits. Students in grades preK-5 attend this school. Then students will attend Triad Middle School followed by Triad High School along with students from Troy and St. Jacob.
- "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data (DP-1): Marine village, Illinois". U.S. Census Bureau, American Factfinder. Retrieved January 23, 2012.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. U.S. Government Printing Office. p. 199.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "G001 - Geographic Identifiers - 2010 Census Summary File 1". United States Census Bureau. Retrieved 2015-10-26.
- "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2015". Retrieved July 2, 2016.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.