Onarga, IL Profile: Facts, Map & Data


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Onarga, Illinois - Basic Facts

The Village of Onarga had a population of 1,270 as of July 1, 2017. Onarga ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Onarga is located at latitude 40.7157 and longitude -88.0064 in Iroquois County. The formal boundaries for the Village of Onarga (see map below) encompass a land area of 1.18 sq. miles and a water area of 0 sq. miles. Iroquois County is in the Central time zone (GMT -6). The elevation is 673 feet.

The Village of Onarga (GNIS ID: 2399574) 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 Onarga is located within Township of Onarga, a minor civil division (MCD) of Iroquois County.

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

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Village of Onarga, IL Boundary Map

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


Total Population 1,270
Daytime Population: Workers 841
Daytime Population: Residents 621
Total Daytime Population (TDP) 1,462
Ratio TDP/Total Population1 1.15
Population in Households 1,176
Population in Familes 991
Population in Group Qrtrs 94
Population Density2 1,075
Diversity Index3 76


Median Household Income $44,367
Average Household Income $56,858
Per Capita Income $20,041


Total Housing Units 477 (100%)
Owner Occupied HU 308 (64.6%)
Renter Occupied HU 109 (22.9%)
Vacant Housing Units 61 (12.8%)
Median Home Value $92,626
Average Home Value $127,199


Total Households 416
Average Household Size 2.83
Family Households 291
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 -0.47% -0.65%
Households -0.46% -0.68%
Families -1.09% -0.84%
Median Household Income   1.24%
Per Capita Income   2.3%

Onarga, IL - Peer Comparisons by Rank and Percentile

The table below compares Onarga 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 # 638 54th
Population Density # 712 48th
Diversity Index # 37 97th
Median Household Income # 1025 25th
Per Capita Income # 1263 8th

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

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