Koontz Lake, IN Profile: Facts & Data

The primary coordinate point for Koontz Lake is located at latitude 41.4181 and longitude -86.4858 in Starke County. The formal boundaries for the Koontz Lake Census Designated Place encompass a land area of 3.37 sq. miles and a water area of 0.52 sq. miles. Starke County is in the Central time zone (GMT -6).

While the primary coordinates for Koontz Lake Census Designated Place are located in Starke County, it should be noted that the formal boundaries for this community also extend into and Marshall County.

The Koontz Lake Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Koontz Lake, IN Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	1,670 (100%)
Population in Households	1,670 (100.0%)
Population in Families	1,338 (80.1%)
Population in Group Quarters¹	0
Population Density	474
Diversity Index²	22


INCOME
Median Household Income	$73,969
Average Household Income	$79,241
% of Income for Mortgage⁴	14%
Per Capita Income	$33,927
Wealth Index⁵	68
Socioeconomic Status Index⁶	Moderate (61.0)

HOUSING
Total HU (Housing Units)	1,022 (100%)
Owner Occupied HU	588 (57.5%)
Renter Occupied HU	127 (12.4%)
Vacant Housing Units	307 (30.0%)
Median Home Value	$167,969
Average Home Value	$215,038
Housing Affordability Index³	159

HOUSEHOLDS
Total Households	715
Average Household Size	2.34
Family Households	448
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Koontz Lake, IN - Peer Comparisons by Rank and Percentile

The table below compares Koontz Lake to the other 976 incorporated cities, towns and CDPs in Indiana by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	0.03%	-0.33%
Households	0.05%	-0.20%
Families		-0.36%
Median Household Income		0.87%
Per Capita Income		1.48%
Owner Occupied HU		-0.20%

Variable Description	Rank	Percentile
Total Population	# 260	73rd
Population Density	# 668	32nd
Median Household Income	# 455	53rd
Housing Affordability Index	# 843	86th
Per Capita Income	# 560	43rd
Diversity Index	# 355	64th

Koontz Lake, IN Profile: Facts & Data

Koontz Lake, Indiana - Basic Facts

Koontz Lake, IN Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Koontz Lake, IN - Peer Comparisons by Rank and Percentile

Koontz Lake, IN - Most Popular Things to Do

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Starke County