Idaho Census & Demographic Data - July 1, 2018


Idaho Census Data

The tables below provide updated data and demographic estimates for Idaho as of July 1, 2018. Our Idaho Census Data Comparison Tool allows you to compare and rank ID cities, towns, ZIP Codes and Counties.

Idaho Data & Demographics (As of July 1, 2018)


Total Population 1,760,131
Population in Households 1,730,069
Population in Familes 1,420,759
Population in Group Qrtrs 30,062
Population Density2 21
Diversity Index3 41


Median Household Income $52,294
Average Household Income $69,093
Per Capita Income $25,671


Total Housing Units 740,522 (100%)
Owner Occupied HU 439,455 (59.3%)
Renter Occupied HU 206,065 (27.8%)
Vacant Housing Units 95,002 (12.8%)
Median Home Value $201,162
Average Home Value $257,742


Total Households 645,520
Average Household Size 2.68
Family Households 442,059
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 1.41% 1.47%
Households 1.32% 1.42%
Families 1.12% 1.29%
Median Household Income   2.14%
Per Capita Income   2.69%