Hennepin, IL Profile: Facts, Map & Data


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Hennepin, Illinois - Basic Facts

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The Village of Hennepin had a population of 741 as of July 1, 2017. Hennepin ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Hennepin is located at latitude 41.2469 and longitude -89.314 in Putnam County. The formal boundaries for the Village of Hennepin (see map below) encompass a land area of 5.26 sq. miles and a water area of 0.37 sq. miles. Putnam County is in the Central time zone (GMT -6). The elevation is 502 feet.

The Village of Hennepin (GNIS ID: 2398489) 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 Village of Hennepin is located within Township of Hennepin, a minor civil division (MCD) of Putnam County.

Beneath the boundary map are tables with Hennepin population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Hennepin: Fort Deposit, Fort Wilbourn, Prairie de Prue.

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Village of Hennepin, IL Boundary Map

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Hennepin, IL Data & Demographics (As of July 1, 2017)


Total Population 741
Daytime Population: Workers 487
Daytime Population: Residents 318
Total Daytime Population (TDP) 805
Ratio TDP/Total Population1 1.09
Population in Households 739
Population in Familes 607
Population in Group Qrtrs 2
Population Density2 141
Diversity Index3 14


Median Household Income $57,339
Average Household Income $71,652
Per Capita Income $30,452


Total Housing Units 393 (100%)
Owner Occupied HU 248 (63.1%)
Renter Occupied HU 70 (17.8%)
Vacant Housing Units 75 (19.1%)
Median Home Value $149,123
Average Home Value $166,230


Total Households 318
Average Household Size 2.32
Family Households 217
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 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.


2010-2017 2017-2022
Population -0.29% -1.36%
Households -0.34% -1.42%
Families -0.06% -1.42%
Median Household Income   2.3%
Per Capita Income   2.98%

Hennepin, IL - Peer Comparisons by Rank and Percentile

The table below compares Hennepin to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2017 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 # 790 42nd
Population Density # 1320 4th
Diversity Index # 633 54th
Median Household Income # 516 62nd
Per Capita Income # 404 71st

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

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