Koontz Lake, Indiana

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Koontz Lake, Indiana
Location of Koontz Lake in Marshall County and Starke County, Indiana.
Location of Koontz Lake in Marshall County and Starke County, Indiana.
Coordinates: 41°24′50″N 86°28′57″W / 41.41389°N 86.48250°W / 41.41389; -86.48250Coordinates: 41°24′50″N 86°28′57″W / 41.41389°N 86.48250°W / 41.41389; -86.48250
CountryUnited States
CountiesStarke, Marshall
TownshipOregon, Polk
 • Total3.9 sq mi (10.1 km2)
 • Land3.4 sq mi (8.8 km2)
 • Water0.5 sq mi (1.3 km2)
Elevation735 ft (224 m)
 • Total1,557
 • Density459/sq mi (177.3/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
FIPS code18-40464[2]
GNIS feature ID437438

Koontz Lake is a census-designated place (CDP) in Marshall and Starke counties, in the U.S. state of Indiana.[3] The population was 1,557 at the 2010 census.[4]


Koontz Lake was named for the nearby lake named after the owner of a nearby mill, Samuel Koontz.[5] The community was devastated by tornadoes as part of the Palm Sunday Tornado Outbreak of 1965.


Koontz Lake is located at 41°24′50″N 86°28′57″W / 41.41389°N 86.48250°W / 41.41389; -86.48250 (41.413804, -86.482628).[6]

According to the United States Census Bureau, the CDP has a total area of 3.9 square miles (10 km2), of which 3.4 square miles (8.8 km2) is land and 0.5 square miles (1.3 km2) (12.85%) is water.


Historical population
Census Pop.
U.S. Decennial Census[7]

As of the census[2] of 2000, there were 1,554 people, 652 households, and 449 families residing in the CDP. The population density was 459.1 people per square mile (177.0/km2). There were 931 housing units at an average density of 275.0/sq mi (106.0/km2). The racial makeup of the CDP was 97.75% White, 0.13% African American, 0.58% Native American, 0.58% from other races, and 0.97% from two or more races. Hispanic or Latino of any race were 1.74% of the population.

There were 652 households, out of which 26.7% had children under the age of 18 living with them, 56.6% were married couples living together, 8.4% had a female householder with no husband present, and 31.0% were non-families. 26.5% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.85.

In the CDP, the population was spread out, with 21.6% under the age of 18, 7.7% from 18 to 24, 25.7% from 25 to 44, 27.0% from 45 to 64, and 18.0% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 93.8 males. For every 100 females age 18 and over, there were 94.1 males.

The median income for a household in the CDP was $37,137, and the median income for a family was $45,114. Males had a median income of $35,388 versus $21,563 for females. The per capita income for the CDP was $21,429. About 6.7% of families and 7.7% of the population were below the poverty line, including 11.5% of those under age 18 and 5.7% of those age 65 or over.


Koontz Lake has a public library, a branch of the Starke County Public Library System.[8]


  1. ^ "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
  2. ^ a b "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
  3. ^ "Koontz Lake, Indiana". Geographic Names Information System. United States Geological Survey. Retrieved 2016-11-05.
  4. ^ "U.S. Census website". United States Census Bureau. Retrieved 2017-09-17.
  5. ^ Baker, Ronald L.; Marvin Carmony (1995). Indiana Place Names. Bloomington: Indiana University Press. p. 83. ISBN 0-253-28340-X.
  6. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
  7. ^ "Census of Population and Housing". Census.gov. Retrieved June 4, 2016.
  8. ^ "Hours & Locations". Starke County Public Library System. Retrieved 15 March 2018.

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