Louisa County IA Information


Louisa County Subdivisions

Louisa County IA Data & Demographics (As of July 1, 2017)


Total Population 11,251
Daytime Population: Workers 4,054
Daytime Population: Residents 5,578
Total Daytime Population (TDP) 9,632
Ratio TDP/Total Population1 0.86
Population in Households 11,135
Population in Familes 9,217
Population in Group Qrtrs 116
Population Density2 28
Diversity Index3 43


Median Household Income $54,389
Average Household Income $63,775
Per Capita Income $24,506


Total Housing Units 5,027 (100%)
Owner Occupied HU 3,337 (66.4%)
Renter Occupied HU 967 (19.2%)
Vacant Housing Units 723 (14.4%)
Median Home Value $113,173
Average Home Value $151,026


Total Households 4,304
Average Household Size 2.59
Family Households 3,006
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 -0.17% -0.26%
Households -0.13% -0.25%
Families -0.27% -0.32%
Median Household Income   2.46%
Per Capita Income   2.9%


Louisa County IA - Peer Comparisons by Rank and Percentile

The table below compares Louisa County to the other 99 counties and county equivalents in Iowa 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 # 67 33rd
Population Density # 50 52nd
Diversity Index # 6 95th
Median Household Income # 25 76th
Per Capita Income # 87 13th

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