Lanark, IL Profile: Facts, Map & Data


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Lanark, Illinois - Basic Facts

The City of Lanark had a population of 1,401 as of July 1, 2016.

The primary coordinate point for Lanark is located at latitude 42.1019 and longitude -89.8328 in Carroll County. The formal boundaries for the City of Lanark (see map below) encompass a land area of 1.13 sq. miles and a water area of 0 sq. miles. Carroll County is in the Central time zone (GMT -6). The elevation is 879 feet.

The City of Lanark (GNIS ID: 2395622) 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 City of Lanark is located within Township of Rock Creek-Lima, a minor civil division (MCD) of Carroll County.

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

Neighborhood Data

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City of Lanark, IL Boundary Map

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Boundary Maps: Township of Rock Creek-Lima | Carroll County | Illinois Counties

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Lanark, IL Data & Demographics (As of July 1, 2016)


Total Population 1,401
Population in Households 1,386
Population in Familes 1,114
Population in Group Qrtrs 15
Population Density1 1,245
Diversity Index2 8


Total Households 599
Average Household Size 2.31
Family Households 388
Average Family Size 3


Total Housing Units 692 (100%)
Owner Occupied HU 460 (66.5%)
Renter Occupied HU 139 (20.1%)
Vacant Housing Units 93 (13.4%)
Median Home Value $91,960
Average Home Value $114,696


Median Household Income $43,670
Average Household Income $52,279
Per Capita Income $22,479
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.63% -0.68%
Households -0.65% -0.71%
Families -0.88% -0.84%
Median Household Income   1.07%
Per Capita Income   1.25%
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.

Lanark, IL - Peer Comparisons by Rank and Percentile

The table below compares Lanark to the other 1,368 incorporated cities, towns and CDPs in Illinois 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 # 609 56th
Population Density1 # 617 55th
Diversity Index2 # 1012 26th
Median Household Income # 998 27th
Per Capita Income # 1012 26th

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

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