Ionia County MI Information


Ionia County Subdivisions

Ionia County MI Data & Demographics (As of July 1, 2016)


Total Population 65,162
Population in Households 59,625
Population in Familes 49,665
Population in Group Qrtrs 5,537
Population Density1 114
Diversity Index2 26


Total Households 22,563
Average Household Size 2.64
Family Households 16,114
Average Family Size 3


Total Housing Units 25,363 (100%)
Owner Occupied HU 17,335 (68.3%)
Renter Occupied HU 5,228 (20.6%)
Vacant Housing Units 2,800 (11.0%)
Median Home Value $123,187
Average Home Value $147,030


Median Household Income $51,499
Average Household Income $59,740
Per Capita Income $21,306
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.31% 0.45%
Households 0.3% 0.47%
Families 0.14% 0.37%
Median Household Income   1.99%
Per Capita Income   1.95%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Ionia County MI - Peer Comparisons by Rank and Percentile

The table below compares Ionia County to the other 83 counties and county equivalents in Michigan by rank and percentile using July 1, 2016 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 # 30 65th
Population Density1 # 30 65th
Diversity Index2 # 31 64th
Median Household Income # 17 81st
Per Capita Income # 65 23rd

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