Gridley, IL Profile: Facts, Map & Data


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Gridley, Illinois - Basic Facts

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The Village of Gridley had a population of 1,521 as of July 1, 2017.

The primary coordinate point for Gridley is located at latitude 40.7439 and longitude -88.8806 in McLean County. The formal boundaries for the Village of Gridley (see map below) encompass a land area of 1.23 sq. miles and a water area of 0 sq. miles. McLean County is in the Central time zone (GMT -6). The elevation is 755 feet.

The Village of Gridley (GNIS ID: 2398210) 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 Gridley is located within Township of Gridley, a minor civil division (MCD) of McLean County.

Beneath the boundary map are tables with Gridley 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 Gridley, IL Boundary Map

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Boundary Maps: Township of Gridley | McLean County | Illinois Counties

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


Total Population 1,521
Daytime Population: Workers 586
Daytime Population: Residents 766
Total Daytime Population (TDP) 1,352
Ratio TDP/Total Population1 0.89
Population in Households 1,521
Population in Familes 1,330
Population in Group Qrtrs 0
Population Density2 1,233
Diversity Index3 10


Median Household Income $68,335
Average Household Income $78,121
Per Capita Income $29,869


Total Housing Units 651 (100%)
Owner Occupied HU 491 (75.4%)
Renter Occupied HU 119 (18.3%)
Vacant Housing Units 41 ( 6.3%)
Median Home Value $128,716
Average Home Value $143,929


Total Households 610
Average Household Size 2.49
Family Households 449
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 0.84% 0.76%
Households 0.84% 0.77%
Families 1.47% 0.7%
Median Household Income   3.15%
Per Capita Income   2.9%

Gridley, IL - Peer Comparisons by Rank and Percentile

The table below compares Gridley 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 # 577 58th
Population Density # 621 55th
Diversity Index # 831 39th
Median Household Income # 281 80th
Per Capita Income # 443 68th

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

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