Saint John, IN Profile: Facts, Map & Data


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Saint John, Indiana - Basic Facts

The Town of Saint John had a population of 16,675 as of July 1, 2016. Saint John ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Indiana. See peer rankings below.

The primary coordinate point for Saint John is located at latitude 41.4418 and longitude -87.4678 in Lake County. The formal boundaries for the Town of Saint John (see map below) encompass a land area of 11.65 sq. miles and a water area of 0.09 sq. miles. Lake County is in the Central time zone (GMT -6). The elevation is 725 feet.

The Town of Saint John (GNIS ID: 2396898) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Town of Saint John is located within Township of Saint John, a minor civil division (MCD) of Lake County.

Beneath the boundary map are tables with Saint John population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for Saint John: Prairie West, Western Prairie.

Neighborhood Data

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Town of Saint John, IN Boundary Map

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Boundary Maps: Township of Saint John | Lake County | Indiana Counties

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Saint John, IN Data & Demographics (As of July 1, 2016)


Total Population 16,675
Population in Households 16,667
Population in Familes 15,208
Population in Group Qrtrs 8
Population Density1 1,431
Diversity Index2 32


Total Households 5,693
Average Household Size 2.93
Family Households 4,653
Average Family Size 3


Total Housing Units 5,755 (100%)
Owner Occupied HU 5,331 (92.6%)
Renter Occupied HU 362 ( 6.3%)
Vacant Housing Units 62 ( 1.1%)
Median Home Value $268,621
Average Home Value $292,534


Median Household Income $91,671
Average Household Income $105,490
Per Capita Income $36,252
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.87% 1.68%
Households 1.95% 1.71%
Families 1.56% 1.59%
Median Household Income   1.94%
Per Capita Income   2.06%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Saint John, IN - Peer Comparisons by Rank and Percentile

The table below compares Saint John to the other 680 incorporated cities, towns and CDPs in Indiana by rank and percentile using July 1, 2016 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.

Variable Description Rank Percentile
Total Population # 54 92nd
Population Density1 # 304 55th
Diversity Index2 # 92 87th
Median Household Income # 13 98th
Per Capita Income # 26 96th

Additional comparisons and rankings can be made with a VERY EASY TO USE Indiana Census Data Comparison Tool.

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