Silvis, IL Profile: Facts & Data


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Silvis, Illinois - Basic Facts

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The City of Silvis had a population of 7,225 as of July 1, 2021. Silvis 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 Silvis is located at latitude 41.5123 and longitude -90.4151 in Rock Island County. The formal boundaries for the City of Silvis 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 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.

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  1. Silvis 2021 Demographic Data
  2. Growth Rates for Silvis (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Illinois Research Tools (Easy Tools & Current Data)
  3. Illinois Data Comparison Tool - 2021 Demographics

Silvis, IL Data & Demographics (As of July 1, 2021)


Total Population 7,225 (100%)
Population in Households 7,225 (100.0%)
Population in Families 5,398 (74.7%)
Population in Group Quarters1 0
Population Density 1,686
Diversity Index2 55


Median Household Income $53,009
Average Household Income $61,153
% of Income for Mortgage4 11%
Per Capita Income $27,802
Wealth Index5 48


Total HU (Housing Units) 3,558 (100%)
Owner Occupied HU 1,749 (49.2%)
Renter Occupied HU 1,519 (42.7%)
Vacant Housing Units 290 ( 8.2%)
Median Home Value $133,891
Average Home Value $147,084
Housing Affordability Index3 206


Total Households 3,268
Average Household Size 2.21
Family Households 1,842
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population -0.43% -0.7%
Households -0.18% -0.54%
Families -0.58% -0.67%
Median Household Income   1.7%
Per Capita Income   2.49%
Owner Occupied HU   0.37%

Silvis, IL - Peer Comparisons by Rank and Percentile

The table below compares Silvis to the other 1,369 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2021 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 # 279 80th
Population Density # 371 73rd
Median Household Income # 916 33rd
Housing Affordability Index # 551 40th
Per Capita Income # 869 37th
Diversity Index # 157 89th

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

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