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Idaho City, ID Profile: Facts & Data

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Idaho City, Idaho - Basic Facts

The City of Idaho City had a population of 494 as of July 1, 2025.

The primary coordinate point for Idaho City is located at latitude 43.8285 and longitude -115.8346 in Boise County. The formal boundaries for the City of Idaho City encompass a land area of 0.67 sq. miles and a water area of 0 sq. miles. Boise County is in the Mountain time zone (GMT -7).

The City of Idaho City has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Idaho is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Idaho City is located within Idaho City Division of Boise County.


Jump to... (On This Page!)
  1. Idaho City 2025 Demographic Data
  2. Growth Rates for Idaho City (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Idaho Research Tools (Easy Tools & Current Data)
  3. Idaho Data Comparison Tool - 2025 Demographics
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Idaho City, ID Data & Demographics (As of July 1, 2025)

POPULATION

Total Population 494 (100%)
Population in Households 494 (100.0%)
Population in Families 367 (74.3%)
Population in Group Quarters1 0
Population Density 742
Diversity Index2 30
 
 

INCOME

Median Household Income $63,037
Average Household Income $70,717
% of Income for Mortgage4 55%
Per Capita Income $32,209
Wealth Index5 49
Socioeconomic Status Index6 Moderate (56.7)
 

HOUSING

Total HU (Housing Units) 283 (100%)
Owner Occupied HU 181 (64.0%)
Renter Occupied HU 44 (15.5%)
Vacant Housing Units 58 (20.5%)
Median Home Value $557,927
Average Home Value $607,238
Housing Affordability Index3 46
 

HOUSEHOLDS

Total Households 225
Average Household Size 2.20
Family Households 143
Average Family Size 3.00
NOTES
  1. 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.
  2. 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.
  3. 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.
  4. 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).
  5. 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.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2025 2025-2030
Population 1.12% 2.02%
Households 0.78% 2.37%
Families   2.53%
Median Household Income   1.35%
Per Capita Income   2.07%
Owner Occupied HU   3.60%

Idaho City, ID - Peer Comparisons by Rank and Percentile

The table below compares Idaho City to the other 236 incorporated cities, towns and CDPs in Idaho by rank and percentile using July 1, 2025 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 # 139 42nd
Population Density # 132 44th
Median Household Income # 156 34th
Housing Affordability Index # 43 18th
Per Capita Income # 136 43rd
Diversity Index # 131 45th

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

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