Mason County IL Information


Mason County Subdivisions

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


Total Population 13,581
Daytime Population: Workers 4,513
Daytime Population: Residents 7,409
Total Daytime Population (TDP) 11,922
Ratio TDP/Total Population1 0.88
Population in Households 13,375
Population in Familes 10,686
Population in Group Qrtrs 206
Population Density2 25
Diversity Index3 9


Median Household Income $45,817
Average Household Income $60,235
Per Capita Income $25,203


Total Housing Units 7,054 (100%)
Owner Occupied HU 4,278 (60.6%)
Renter Occupied HU 1,375 (19.5%)
Vacant Housing Units 1,401 (19.9%)
Median Home Value $86,836
Average Home Value $110,279


Total Households 5,653
Average Household Size 2.37
Family Households 3,731
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 -1.05% -1.2%
Households -1.0% -1.17%
Families -1.16% -1.29%
Median Household Income   2.18%
Per Capita Income   2.74%


Mason County IL - Peer Comparisons by Rank and Percentile

The table below compares Mason County to the other 102 counties and county equivalents 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 # 79 24th
Population Density # 87 16th
Diversity Index # 91 14th
Median Household Income # 72 30th
Per Capita Income # 65 37th

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