Belknap, IL Profile: Facts, Map & Data


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Belknap, Illinois - Basic Facts

The Village of Belknap had a population of 109 as of July 1, 2018. Belknap 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 Belknap is located at latitude 37.3226 and longitude -88.9397 in Johnson County. The formal boundaries for the Village of Belknap (see map below) encompass a land area of 1.06 sq. miles and a water area of 0 sq. miles. Johnson County is in the Central time zone (GMT -6). The elevation is 404 feet.

The Village of Belknap (GNIS ID: 2398072) 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 Belknap is located within Belknap Election Precinct, a minor civil division (MCD) of Johnson County.

Beneath the boundary map are tables with Belknap population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

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Village of Belknap, IL Boundary Map

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Boundary Maps: Belknap Election Precinct | Johnson County | Illinois Counties

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Belknap, IL Data & Demographics (As of July 1, 2018)


Total Population 109
Population in Households 109
Population in Familes 91
Population in Group Qrtrs 0
Population Density2 103
Diversity Index3 12


Median Household Income $38,057
Average Household Income $51,175
Per Capita Income $21,762


Total Housing Units 64 (100%)
Owner Occupied HU 46 (71.9%)
Renter Occupied HU 4 ( 6.2%)
Vacant Housing Units 14 (21.9%)
Median Home Value $84,375
Average Home Value $114,130


Total Households 50
Average Household Size 2.18
Family Households 34
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 0.57% 0.36%
Households 0.75% 0.4%
Families 2.38% 0.58%
Median Household Income   0.87%
Per Capita Income   1.75%

Belknap, IL - Peer Comparisons by Rank and Percentile

The table below compares Belknap to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2018 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 # 1304 5th
Population Density # 1349 1st
Diversity Index # 716 48th
Median Household Income # 1264 8th
Per Capita Income # 1194 13th

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

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