Peru, IL Profile: Facts, Map & Data


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Peru, Illinois - Basic Facts

The City of Peru had a population of 10,122 as of July 1, 2017.

The primary coordinate point for Peru is located at latitude 41.3468 and longitude -89.1331 in LaSalle County. The formal boundaries for the City of Peru (see map below) encompass a land area of 9.01 sq. miles and a water area of 0.11 sq. miles. LaSalle County is in the Central time zone (GMT -6). The elevation is 600 feet.

The City of Peru (GNIS ID: 2396189) 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 Peru is located within Township of Peru, a minor civil division (MCD) of LaSalle County.

Beneath the boundary map are tables with Peru 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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City of Peru, IL Boundary Map

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Boundary Maps: Township of Peru | LaSalle County | Illinois Counties

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


Total Population 10,122
Daytime Population: Workers 7,895
Daytime Population: Residents 5,319
Total Daytime Population (TDP) 13,214
Ratio TDP/Total Population1 1.31
Population in Households 9,673
Population in Familes 7,435
Population in Group Qrtrs 449
Population Density2 1,123
Diversity Index3 29


Median Household Income $51,479
Average Household Income $67,254
Per Capita Income $28,927


Total Housing Units 4,788 (100%)
Owner Occupied HU 3,048 (63.7%)
Renter Occupied HU 1,325 (27.7%)
Vacant Housing Units 415 ( 8.7%)
Median Home Value $131,482
Average Home Value $145,028


Total Households 4,373
Average Household Size 2.21
Family Households 2,615
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 -0.24% -0.45%
Households -0.33% -0.47%
Families -0.33% -0.6%
Median Household Income   1.05%
Per Capita Income   2.72%

Peru, IL - Peer Comparisons by Rank and Percentile

The table below compares Peru 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 # 223 84th
Population Density # 686 50th
Diversity Index # 381 72nd
Median Household Income # 767 44th
Per Capita Income # 500 63rd

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

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