Silvis, IL Profile: Facts, Map & Data


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Silvis, Illinois - Basic Facts

The City of Silvis had a population of 7,537 as of July 1, 2017. Silvis ranks in the upper quartile for Population Density and 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 Silvis is located at latitude 41.4979 and longitude -90.4101 in Rock Island County. The formal boundaries for the City of Silvis (see map below) encompass a land area of 4.2 sq. miles and a water area of 0 sq. miles. Rock Island County is in the Central time zone (GMT -6). The elevation is 594 feet.

The City of Silvis (GNIS ID: 2395890) 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 Silvis is located within Township of Hampton, a minor civil division (MCD) of Rock Island County.

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

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Boundary Maps: Township of Hampton | Rock Island County | Illinois Counties

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


Total Population 7,537
Daytime Population: Workers 3,490
Daytime Population: Residents 3,694
Total Daytime Population (TDP) 7,184
Ratio TDP/Total Population1 0.95
Population in Households 7,537
Population in Familes 5,676
Population in Group Qrtrs 0
Population Density2 1,792
Diversity Index3 53


Median Household Income $36,862
Average Household Income $52,630
Per Capita Income $23,581


Total Housing Units 3,567 (100%)
Owner Occupied HU 1,882 (52.8%)
Renter Occupied HU 1,479 (41.5%)
Vacant Housing Units 206 ( 5.8%)
Median Home Value $108,464
Average Home Value $130,154


Total Households 3,361
Average Household Size 2.24
Family Households 1,921
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 0.03% -0.13%
Households 0.2% -0.05%
Families -0.18% -0.18%
Median Household Income   0.41%
Per Capita Income   2.37%

Silvis, IL - Peer Comparisons by Rank and Percentile

The table below compares Silvis 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 # 274 80th
Population Density # 346 75th
Diversity Index # 165 88th
Median Household Income # 1278 7th
Per Capita Income # 995 27th

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

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