Moline, IL Profile: Facts & Data


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Moline, Illinois - Basic Facts

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The City of Moline had a population of 42,621 as of July 1, 2021. Moline 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 Moline is located at latitude 41.5067 and longitude -90.5151 in Rock Island County. The formal boundaries for the City of Moline encompass a land area of 16.55 sq. miles and a water area of 0.23 sq. miles. Rock Island County is in the Central time zone (GMT -6). The elevation is 577 feet.

The City of Moline 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 Moline is located within Township of Moline, a minor civil division (MCD) of Rock Island County.

Alternate Unofficial Names for Moline: Quad Cities.

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  1. Moline 2021 Demographic Data
  2. Growth Rates for Moline (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

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


Total Population 42,621 (100%)
Population in Households 42,114 (98.8%)
Population in Families 32,170 (75.5%)
Population in Group Quarters1 507 ( 1.2%)
Population Density 2,544
Diversity Index2 58


Median Household Income $57,213
Average Household Income $72,690
% of Income for Mortgage4 10%
Per Capita Income $31,479
Wealth Index5 67


Total HU (Housing Units) 20,027 (100%)
Owner Occupied HU 11,325 (56.5%)
Renter Occupied HU 7,123 (35.6%)
Vacant Housing Units 1,579 ( 7.9%)
Median Home Value $135,508
Average Home Value $167,627
Housing Affordability Index3 197


Total Households 18,448
Average Household Size 2.28
Family Households 10,938
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 -0.15% -0.53%
Households -0.03% -0.45%
Families -0.3% -0.57%
Median Household Income   1.67%
Per Capita Income   2.09%
Owner Occupied HU   -0.09%

Moline, IL - Peer Comparisons by Rank and Percentile

The table below compares Moline 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 # 35 98th
Population Density # 164 88th
Median Household Income # 752 45th
Housing Affordability Index # 483 35th
Per Capita Income # 567 59th
Diversity Index # 146 89th

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

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