Grangeville Division ID Demographic Data and Boundary Map
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Grangeville Division, ID
The Grangeville Division is a County Subdivision of Idaho County.
The subdivision has a Z5 Census Class Code which indicates that the Grangeville Division is a statistical county subdivision.
Grangeville Division Data & Demographics (As of July 1, 2025)
POPULATION
Total Population
7,007 (100%)
Population in Households
6,975 (99.5%)
Population in Families
5,661 (80.8%)
Population in Group Quarters1
32 ( 0.5%)
Population Density
11
Diversity Index2
26
INCOME
Median Household Income
$76,004
Average Household Income
$85,324
% of Income for Mortgage4
28%
Per Capita Income
$36,390
Wealth Index5
65
HOUSING
Total HU (Housing Units)
3,401 (100%)
Owner Occupied HU
2,283 (67.1%)
Renter Occupied HU
705 (20.7%)
Vacant Housing Units
413 (12.1%)
Median Home Value
$343,135
Average Home Value
$407,787
Housing Affordability Index3
89
HOUSEHOLDS
Total Households
2,988
Average Household Size
2.33000000000
Family Households
1,899
Average Family Size
3
NOTES
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.
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.
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.
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).
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.
