State profile · ID
Largest Cities in Idaho
Ranked by resident population across 215 tracked cities and towns in Idaho, using Census ACS 5-Year Estimates (2023). This compares cities and Census-designated places, not metropolitan areas, and carries the same rows into the chart, table, and downloadable CSV below.
- 215
- Cities
- 1.4M
- Combined city pop.
- $65,091
- Avg median income
- 9.0%
- Avg poverty rate
Data updated August 2026
The headline finding
Boise City is the largest of 215 tracked cities in Idaho, which ranks #36 of 52 nationally on avg median income.
- Boise City
- largest tracked city (235,701 people)
- #36
- national rank, avg median income
- 215
- cities tracked in this state
Every figure here is read live from the same table rendered below.
88% of Idaho's 215 tracked cities are small towns under 10,000 people -- none crosses the 1-million-resident mark.
Idaho's city-size mix
How the tracked cities and towns split by resident population
- <10K
Small towns under 10,000 residents
190 tracked cities
- 10K-99K 22
Mid-size cities with 10,000-99,999 residents
22 tracked cities
- 100K-999K 3
Large cities with 100,000-999,999 residents
3 tracked cities
What this shows Small towns under 10,000 residents are the largest group in PlainCities' Idaho coverage, with 190 of 215 tracked places. This is a count of profiled places, not a share of the state's population.
How we calculate this mix & the national home-value percentile below
Every tracked city in Idaho is bucketed by population: small town under 10,000; mid-size 10,000–99,999; large 100,000–999,999; megacity 1,000,000+. The national home-value comparison below plots Idaho's average tracked-city home value against all 52 US states/territories, ranked the same way as the per-city percentiles: the state's percentile is the share of states with a lower average home value. See the methodology page for the full source-to-figure lineage.
Largest cities in Idaho
By population, hover or tap a bar for income detail
- Boise City
Boise City, ID
235,701 residents
- Meridian
Meridian, ID
124,865 residents
- Nampa
Nampa, ID
106,289 residents
- Idaho Falls 66,672
Idaho Falls, ID
66,672 residents
- Caldwell 63,465
Caldwell, ID
63,465 residents
- Pocatello 57,152
Pocatello, ID
57,152 residents
- Coeur d'Alene 55,558
Coeur d'Alene, ID
55,558 residents
- Twin Falls 53,219
Twin Falls, ID
53,219 residents
- Post Falls 41,716
Post Falls, ID
41,716 residents
- Rexburg 39,589
Rexburg, ID
39,589 residents
- Lewiston 34,471
Lewiston, ID
34,471 residents
- Eagle 31,490
Eagle, ID
31,490 residents
What this shows Boise City, ID is the most populous city profiled in Idaho; the top 100 rows are listed below and the complete 215-row record is available as a CSV.
How Idaho ranks nationally
Avg median income
$65,091
#36 of 52 · highest income
Avg home value
$279,917
#21 of 52 · highest values
Avg poverty rate
9.0%
#24 of 52 · lowest poverty
Tracked cities
215
#42 of 52 · most tracked cities
Idaho ranks #36 of 52 nationally on average median income and #24 of 52 on average poverty rate, derived live by comparing it against every other tracked state. Averages are computed only across the cities PlainCities tracks in each state, not full state populations.
How Idaho's home values compare nationally
Average tracked-city home value vs. all 52 US states/territories
$279,917 40th percentile more affordable than 40% of 52 US states
Show national distribution
Each bar is a $50K-wide band; taller bars hold more US states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau ACS 5-Year Estimates · 2023
Largest cities in Idaho
Showing the 100 most-populous tracked places, ordered by population. Download the CSV for every one of the 215 city records and their source-backed fields.
What to do with Idaho's city data
215 cities is a lot to browse, here's where to start.
- Boise City is Idaho's largest tracked city by population, start there if you want the fullest picture of a major ID metro. Boise City profile
- Hidden Springs has the highest median household income of any tracked city in Idaho, a different lens than population size alone. Hidden Springs profile
- See how Idaho's cities stack up nationally, not just against each other. National rankings
City counts and averages on this page cover only the 215 places with sufficient Census ACS data, smaller towns below the reporting threshold are not included.
Read our methodology - how this data is sourced, computed, and verified.
Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.
Compare beyond this state
Nationwide similar states
Other states closest to Idaho on two ACS statewide axes: tracked-city population sum and mean of city median household incomes. Link sets are deduped so each column is a distinct comparison path, not a claim that peers share a labor market or climate.
Similar statewide population
Nearest 50-state peers by ACS population of tracked cities. This state: 1,380,327.
Similar mean household income
Nearest peers by mean of city median household incomes. This state: $65,091. Population peers are excluded.
Frequently Asked Questions
How many cities does PlainCities track in Idaho?
PlainCities profiles 215 cities and towns in Idaho, drawn from the U.S. Census Bureau's American Community Survey 5-Year Estimates (2023).
What is the largest city in Idaho?
Boise City is the largest tracked city in Idaho, with a population of 235,701.
What is the average household income in Idaho?
Across the 215 tracked cities in Idaho, the average median household income is $65,091. Individual cities vary widely, with Hidden Springs reporting the highest median income at $159,439.
What is the average poverty rate in Idaho?
The average poverty rate across Idaho's tracked cities is 9.0%, based on Census ACS 5-Year Estimates (2023).
Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.