CountyAtlas

CountyAtlas Idaho

Idaho County Map with Cities — All 44 Counties

All 44 of Idaho's counties, mapped from official U.S. Census boundaries with population, income, and unemployment for every one. Colour the map by any measure, tap a county for its data, or download a print-ready copy.

Idaho CountiesFIPS 16
Ada CountyAdams CountyBannock CountyBear Lake CountyBenewah CountyBingham CountyBlaine CountyBoise CountyBonner CountyBonneville CountyBoundary CountyButte CountyCamas CountyCanyon CountyCaribou CountyCassia CountyClark CountyClearwater CountyCuster CountyElmore CountyFranklin CountyFremont CountyGem CountyGooding CountyIdaho CountyJefferson CountyJerome CountyKootenai CountyLatah CountyLemhi CountyLewis CountyLincoln CountyMadison CountyMinidoka CountyNez Perce CountyOneida CountyOwyhee CountyPayette CountyPower CountyShoshone CountyTeton CountyTwin Falls CountyValley CountyWashington County
Albers Equal Area ConicDatum NAD83Census PEP · SAIPE · BLS LAUS · TIGER
CountyAtlasEdition
Idaho’s 44 counties, projected equal-area. Hover or tap a county for its name; select it for full data.
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Tap any county for its population, income, and more.

Idaho at a glance

  • Scale. Idaho is divided into 44 counties across 82,645 sq mi of land — an average of 1,878 sq mi each. Census TIGER
  • People. Its counties are home to 1,964,726 residents — an average of 44,653 each, or 24 per square mile statewide. Census PEP 2023
  • Water. Another 923 sq mi is water — 1.1% of the state’s area, led by Bonner County. Census TIGER

Idaho’s 44 counties, by the numbers

Every county’s population, median household income, unemployment, density, and land area — sortable by any column, so you can find yours or rank by what matters to you. A few patterns run through the data:

  • Concentrated. Half of Idaho’s 1,964,726 residents live in just 4 of 44 counties, and the five largest hold 60.8% of the total. Census PEP 2023
  • Income tracks poverty. The gap from richest to poorest runs 1.8×, and the 10 highest-income counties average 8.5% in poverty against 14.6% for the 10 lowest. Census SAIPE 2023
  • Mostly small. Half of Idaho’s counties have fewer than 14,845 residents, and half report a median household income below $67,254 — a few metros lift the statewide totals well above both. Census PEP 2023 · SAIPE 2023
  • Lopsided density. Only 17 of 44 counties are denser than Idaho’s statewide average of 24 people per square mile — the rest are more rural. Census PEP 2023 · TIGER
Ada County524,673$90,5133.2%499/sq mi1,052 sq miBoise City
Adams County4,903$59,8296.3%4/sq mi1,363 sq miCouncil
Bannock County90,400$67,3714.1%81/sq mi1,112 sq miPocatello
Bear Lake County6,766$67,5193.0%7/sq mi976 sq miParis
Benewah County10,369$60,8724.8%13/sq mi777 sq miSt. Maries
Bingham County50,395$73,4093.3%24/sq mi2,094 sq miBlackfoot
Blaine County25,041$94,4713.3%9/sq mi2,638 sq miHailey
Boise County8,517$74,4333.8%4/sq mi1,899 sq miIdaho City
Bonner County52,547$68,0304.9%30/sq mi1,733 sq miSandpoint
Bonneville County131,366$74,9483.2%70/sq mi1,866 sq miIdaho Falls
Boundary County13,557$65,0444.6%11/sq mi1,269 sq miBonners Ferry
Butte County2,758$57,6783.8%1/sq mi2,236 sq miArco
Camas County1,232$72,1753.8%1/sq mi1,074 sq miFairfield
Canyon County257,674$72,0593.4%439/sq mi587 sq miCaldwell
Caribou County7,219$70,1833.5%4/sq mi1,764 sq miSoda Springs
Cassia County25,696$68,2673.2%10/sq mi2,566 sq miBurley
Clark County801$55,6253.7%0/sq mi1,763 sq miDubois
Clearwater County9,214$58,7575.7%4/sq mi2,453 sq miOrofino
Custer County4,523$58,2944.3%1/sq mi4,922 sq miChallis
Elmore County29,724$64,2473.8%10/sq mi3,075 sq miMountain Home
Franklin County15,494$80,7683.1%23/sq mi663 sq miPreston
Fremont County14,196$72,0613.0%8/sq mi1,864 sq miSt. Anthony
Gem County21,071$62,4793.6%38/sq mi560 sq miEmmett
Gooding County16,061$65,6623.1%22/sq mi729 sq miGooding
Idaho County17,890$57,2104.1%2/sq mi8,478 sq miGrangeville
Jefferson County34,198$81,5662.9%31/sq mi1,094 sq miRigby
Jerome County25,479$62,5433.0%43/sq mi598 sq miJerome
Kootenai County185,010$75,2354.0%149/sq mi1,238 sq miCoeur d'Alene
Latah County41,301$63,9163.1%38/sq mi1,080 sq miMoscow
Lemhi County8,441$57,5623.8%2/sq mi4,564 sq miSalmon
Lewis County3,739$53,2124.3%8/sq mi479 sq miNezperce
Lincoln County5,450$65,5113.6%5/sq mi1,201 sq miShoshone
Madison County54,547$58,2363.8%116/sq mi469 sq miRexburg
Minidoka County22,480$68,0293.4%30/sq mi757 sq miRupert
Nez Perce County42,987$70,3403.4%51/sq mi848 sq miLewiston
Oneida County4,953$67,1372.7%4/sq mi1,199 sq miMalad City
Owyhee County12,722$60,7013.6%2/sq mi7,668 sq miMurphy
Payette County27,279$67,5324.1%67/sq mi407 sq miPayette
Power County8,253$68,4032.9%6/sq mi1,404 sq miAmerican Falls
Shoshone County14,026$59,9374.6%5/sq mi2,638 sq miWallace
Teton County12,549$94,8952.9%28/sq mi449 sq miDriggs
Twin Falls County95,156$66,6643.2%50/sq mi1,922 sq miTwin Falls
Valley County12,644$84,0244.2%3/sq mi3,665 sq miCascade
Washington County11,425$57,3694.3%8/sq mi1,453 sq miWeiser

All 44 counties, sortable by any column — click a heading. A suppressed estimate (coefficient of variation ≥ 0.30) shows a marker, never a guess. County seats are from Wikidata (CC0), each validated to a Census place inside its county; a county with no validated seat is left blank. See the methodology.

Download & print this Idaho map

Map of Idaho's 44 counties — on official U.S. Census boundaries

Free, print-ready maps of Idaho — all 44 counties on official U.S. Census boundaries, no watermark. Public domain (CC0).

  • Full map — counties + major cities: PNG · PDF
  • Blank outline — print & label it yourself: PNG · PDF
  • Counties only — clean labeled reference: PNG · PDF

Idaho maps, coloured by the data

Map of Idaho counties shaded by population — official U.S. Census data
Population Map by County · Census PEP 2023
Map of Idaho counties shaded by median household income — official U.S. Census data
Median Household Income Map by County · Census SAIPE 2023
Map of Idaho counties shaded by unemployment rate — U.S. Bureau of Labor Statistics
Unemployment Rate Map by County · BLS LAUS

Cities in Idaho

Idaho has 200 incorporated cities. The largest is Boise City in Ada County with 235,701 residents. Use the search on the map above to find any city and highlight the county it sits in.

Boise CityAda County235,701
MeridianAda County124,865
NampaCanyon County106,289
Idaho FallsBonneville County66,672
CaldwellCanyon County63,465
PocatelloBannock County57,152
Coeur d'AleneKootenai County55,558
Twin FallsTwin Falls County53,219
Post FallsKootenai County41,716
RexburgMadison County39,589
LewistonNez Perce County34,471
EagleAda County31,490
KunaAda County25,960
MoscowLatah County25,868
AmmonBonneville County18,496
Mountain HomeElmore County16,265
HaydenKootenai County16,021
ChubbuckBannock County15,900
StarAda County13,231
JeromeJerome County12,689
BlackfootBingham County12,628
Garden CityAda County12,483
BurleyCassia County11,721
RathdrumKootenai County10,133
MiddletonCanyon County10,101
HaileyBlaine County9,439
SandpointBonner County9,244
PayettePayette County8,358
EmmettGem County7,948
FruitlandPayette County6,405
RupertMinidoka County6,157
WeiserWashington County5,803
PrestonFranklin County5,800
RigbyJefferson County5,251
ShelleyBingham County4,987
KimberlyTwin Falls County4,883
American FallsPower County4,636
BuhlTwin Falls County4,624
McCallValley County3,847
St. AnthonyFremont County3,818
GoodingGooding County3,731
HeyburnMinidoka County3,678
KetchumBlaine County3,551
GrangevilleIdaho County3,443
OrofinoClearwater County3,254
SalmonLemhi County3,196
Soda SpringsCaribou County3,150
St. MariesBenewah County3,032
VictorTeton County3,024
HomedaleOwyhee County3,006

Showing the 50 most populous — and 150 more. Search the map above for any Idaho city or village.

A city can span more than one county; each is listed in its primary county — the one its center falls in.

Which Idaho county is the richest, largest, most crowded? The answers

  • Idaho’s highest median household income is in Teton County ($94,895); the lowest is in Lewis County ($53,212). Census SAIPE 2023
  • Idaho’s most populous county is Ada County (524,673); the least populous is Clark County (801) — a 655× spread. Census PEP 2023
  • Idaho’s largest county by land area is Idaho County (8,478 sq mi); the smallest is Payette County (407 sq mi). Census TIGER
  • Idaho’s highest population density is in Ada County (499/sq mi); the lowest is in Clark County (0/sq mi). Census PEP 2023 · TIGER
  • Idaho’s highest poverty rate is in Madison County (20.6%); the lowest is in Teton County (6.6%). Census SAIPE 2023
  • In Idaho, unemployment is highest in Adams County (6.3%) and lowest in Oneida County (2.7%), for May 2026. BLS LAUS
  • Idaho’s highest median age is in Custer County (59.5); the lowest is in Madison County (21.4). Census ACS 2019–2023
  • Idaho’s highest share of bachelor’s degrees is in Teton County (48.3% of adults); the lowest is in Shoshone County (11.5%). Census ACS 2019–2023

Every figure is a current official estimate from the source named — not a crowd-sourced or copied value. Suppressed estimates (coefficient of variation ≥ 0.30) are omitted, never guessed. See the full methodology.

Idaho counties: common questions

How many counties are in Idaho?

Idaho has 44 counties covering 82,645 sq mi and about 2.0M residents. Every one is on the map above and in the table below.

What is the largest county in Idaho?

It depends on the measure. By land area it’s Idaho County (8,478 sq mi); by population it’s Ada County (524,673 residents).

What county is Boise City in?

Boise City (population 235,701) is in Ada County. Use the search on the map to find any Idaho city’s county.

What is the richest county in Idaho?

By median household income, Teton County is the richest at $94,895; the poorest is Lewis County at $53,212 (Census SAIPE 2023).

What is the most populous county in Idaho?

Ada County, with 524,673 residents — about 26.7% of Idaho’s people, and 655× the least populous, Clark County (801).

Sources & vintages

  • Population — PEP Vintage 2023 (July 1, 2023) — pep/charv
  • Median household income & poverty — SAIPE 2023
  • Unemployment — BLS LAUS May 2026 (preliminary)
  • Geometry & boundaries — Census TIGERweb
  • Cities & city population — Census TIGERweb Incorporated Places + ACS 5-year 2019–2023

Data current through .