CountyAtlas

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. Color 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 CountyBoiseIdaho FallsCaldwellPocatelloCoeur d'AleneTwin FallsRexburgLewistonMoscowMountain Home Lemhi  Valley  Bonner  Clark  Oneida  Boise  Idaho Falls  Caldwell  Pocatello  Coeur d'Alene  Twin Falls  Rexburg  Lewiston  Moscow  Mountain Home BoiseNampaIdaho FallsPocatelloCoeur d'AleneTwin FallsRexburgLewistonMoscowMountain Home Idaho  Owyhee  Custer  Lemhi  Valley  Blaine  Shoshone  Bonner  Boise  Fremont  Washington  Boundary  Lincoln  Oneida  Boise  Nampa  Idaho Falls  Pocatello  Coeur d'Alene  Twin Falls  Rexburg  Lewiston  Moscow  Mountain Home BoiseNampaIdaho FallsPocatelloCoeur d'AleneTwin FallsRexburgLewistonMoscowMountain Home Idaho  Owyhee  Custer  Lemhi  Valley  Shoshone  Cassia  Butte  Bingham  Bonner  Boise  Fremont  Washington  Boundary  Oneida  Camas  Bear Lake  Minidoka  Payette  Boise  Nampa  Idaho Falls  Pocatello  Coeur d'Alene  Twin Falls  Rexburg  Lewiston  Moscow  Mountain Home BoiseNampaIdaho FallsPocatelloCoeur d'AleneTwin FallsRexburgLewistonEagleMoscowMountain Home Idaho  Owyhee  Custer  Lemhi  Valley  Elmore  Blaine  Shoshone  Cassia  Butte  Bingham  Bonner  Boise  Fremont  Clark  Washington  Adams  Boundary  Oneida  Bear Lake  Minidoka  Boise  Nampa  Idaho Falls  Pocatello  Coeur d'Alene  Twin Falls  Rexburg  Lewiston  Eagle  Moscow  Mountain Home 
Albers Equal Area ConicDatum WGS 84Census PEP V2025 · Census SAIPE 2024 · BLS LAUS September 2026, preliminary · Census TIGER 2026
CountyAtlasEdition
Idaho’s 44 counties, projected equal-area. Hover over a county, or tap it, for its seat and key numbers; select it for all its data.
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Tap any county for its population, income, and more.

Idaho at a glance

Idaho’s 44 counties, by the numbers

The table lists every county’s population, median household income, unemployment, density, and land area. Sort it by any column to find yours or rank them. A few patterns stand out:

  • Concentrated. Half of Idaho’s 2,029,733 residents live in just 4 of 44 counties, and the 5 largest hold 61.4% of the total. calculated from Census PEP V2025
  • Income tracks poverty. The gap from richest to poorest runs 2.1×, and the 10 highest-income counties average 8.5% in poverty against 15.0% for the 10 lowest. calculated from Census SAIPE 2024
  • The median county. Half of Idaho’s counties have fewer than 15,049 residents, and half report a median household income below $70,416. calculated from Census PEP V2025 · Census SAIPE 2024
  • Lopsided density. Only 16 of 44 counties are denser than Idaho’s statewide average of 25 people per square mile. calculated from Census PEP V2025 · Census TIGER 2026
Ada County546,141$91,8983.1%519/sq mi1,052 sq miBoise City
Adams County5,013$64,6104.6%4/sq mi1,363 sq miCouncil
Bannock County91,591$69,7443.8%82/sq mi1,112 sq miPocatello
Bear Lake County6,727$75,3372.7%7/sq mi976 sq miParis
Benewah County10,508$61,1284.3%14/sq mi777 sq miSt. Maries
Bingham County51,153$74,8273.4%24/sq mi2,094 sq miBlackfoot
Blaine County25,517$117,2692.6%10/sq mi2,638 sq miHailey
Boise County8,545$80,4493.3%4/sq mi1,899 sq miIdaho City
Bonner County54,420$71,8914.2%31/sq mi1,733 sq miSandpoint
Bonneville County135,771$83,9223.0%73/sq mi1,866 sq miIdaho Falls
Boundary County13,997$69,7804.0%11/sq mi1,269 sq miBonners Ferry
Butte County2,783$65,0573.2%1/sq mi2,236 sq miArco
Camas County1,316$76,5484.4%1/sq mi1,074 sq miFairfield
Canyon County275,123$84,1643.2%469/sq mi587 sq miCaldwell
Caribou County7,252$77,6353.2%4/sq mi1,764 sq miSoda Springs
Cassia County26,397$70,4942.9%10/sq mi2,566 sq miBurley
Clark County783$58,7263.3%0/sq mi1,763 sq miDubois
Clearwater County9,118$62,2255.4%4/sq mi2,453 sq miOrofino
Custer County4,636$62,4003.5%1/sq mi4,922 sq miChallis
Elmore County29,465$68,0673.7%10/sq mi3,075 sq miMountain Home
Franklin County15,889$79,3142.8%24/sq mi663 sq miPreston
Fremont County14,208$73,1472.7%8/sq mi1,864 sq miSt. Anthony
Gem County21,773$66,8873.1%39/sq mi560 sq miEmmett
Gooding County16,446$63,0732.9%23/sq mi729 sq miGooding
Idaho County17,874$66,1893.3%2/sq mi8,478 sq miGrangeville
Jefferson County35,297$88,1242.7%32/sq mi1,094 sq miRigby
Jerome County26,362$71,2382.8%44/sq mi598 sq miJerome
Kootenai County191,864$83,3303.7%155/sq mi1,238 sq miCoeur d'Alene
Latah County41,842$64,9612.9%39/sq mi1,080 sq miMoscow
Lemhi County8,474$59,9593.3%2/sq mi4,564 sq miSalmon
Lewis County3,704$60,3843.8%8/sq mi479 sq miNezperce
Lincoln County5,603$69,8193.0%5/sq mi1,201 sq miShoshone
Madison County55,172$55,9404.2%118/sq mi469 sq miRexburg
Minidoka County22,911$72,1493.0%30/sq mi757 sq miRupert
Nez Perce County42,905$73,2553.1%51/sq mi848 sq miLewiston
Oneida County5,085$72,9372.9%4/sq mi1,199 sq miMalad City
Owyhee County12,661$61,8542.9%2/sq mi7,668 sq miMurphy
Payette County27,824$70,3383.9%68/sq mi407 sq miPayette
Power County8,246$65,0022.4%6/sq mi1,404 sq miAmerican Falls
Shoshone County14,130$56,3094.1%5/sq mi2,638 sq miWallace
Teton County13,254$110,1462.0%30/sq mi449 sq miDriggs
Twin Falls County97,539$73,0983.2%51/sq mi1,922 sq miTwin Falls
Valley County12,831$82,5953.4%4/sq mi3,665 sq miCascade
Washington County11,583$57,5394.3%8/sq mi1,453 sq miWeiser

Click a column heading to sort all 44 counties. 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. Where Wikidata has none, the seat comes from the page cited for that county in the seat file, and where the table names no seat, it says why. See the methodology.

Download & print this Idaho map

Map of Idaho's 44 counties on official U.S. Census boundaries, with major cities: Boise, Nampa, Idaho Falls, Pocatello, Coeur d'Alene, Twin Falls

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

  • Full map (counties and major cities): PNG · PDF
  • Blank outline to print and label yourself: PNG · PDF
  • Counties only, labeled, for reference: PNG · PDF

Idaho maps, colored by the data

Map of Idaho counties shaded by population, from official U.S. Census data
Population Map by County · Census PEP V2025
Map of Idaho counties shaded by median household income, from official U.S. Census data
Median Household Income Map by County · Census SAIPE 2024
Map of Idaho counties shaded by unemployment rate, from U.S. Bureau of Labor Statistics data
Unemployment Rate Map by County · BLS LAUS September 2026, preliminary

Cities in Idaho

Idaho has 199 incorporated cities. The largest is Boise in Ada County with 237,242 residents. Use the search on the map above to find any city and highlight the county it sits in.

BoiseAda County237,242
MeridianAda County130,138
NampaCanyon County110,319
Idaho FallsBonneville County67,725
CaldwellCanyon County66,516
PocatelloBannock County +1 more (also Power County)57,635
Coeur d'AleneKootenai County56,447
Twin FallsTwin Falls County54,164
Post FallsKootenai County43,391
RexburgMadison County40,543
LewistonNez Perce County34,651
EagleAda County32,855
KunaAda County27,158
MoscowLatah County26,286
AmmonBonneville County19,064
Mountain HomeElmore County16,493
HaydenKootenai County16,338
ChubbuckBannock County16,126
StarAda County +1 more (also Canyon County)14,745
JeromeJerome County12,930
BlackfootBingham County12,782
Garden CityAda County12,654
BurleyCassia County +1 more (also Minidoka County)11,958
RathdrumKootenai County10,874
MiddletonCanyon County10,649
HaileyBlaine County9,665
SandpointBonner County9,637
PayettePayette County8,536
EmmettGem County8,275
FruitlandPayette County6,663
RupertMinidoka County6,190
WeiserWashington County5,935
PrestonFranklin County5,928
RigbyJefferson County5,404
KimberlyTwin Falls County5,111
ShelleyBingham County5,092
American FallsPower County4,712
BuhlTwin Falls County4,673
McCallValley County3,946
St. AnthonyFremont County3,911
GoodingGooding County3,778
HeyburnMinidoka County3,693
KetchumBlaine County3,594
GrangevilleIdaho County3,515
OrofinoClearwater County3,260
SalmonLemhi County3,203
Soda SpringsCaribou County3,158
HomedaleOwyhee County3,069
VictorTeton County3,067
IonaBonneville County2,984

The table shows the 50 most populous. Search the map above for the other 149.

A city can reach into more than one county. The table names the one its center falls in; “+N more” counts the others, from the Census Bureau’s count of each city by county part Census ACS 2020–2024 place parts.

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

  • Idaho’s highest median household income is in Blaine County ($117,269); the lowest is in Madison County ($55,940). Census SAIPE 2024
  • Idaho’s most populous county is Ada County (546,141); the least populous is Clark County (783), a 697× spread. calculated from Census PEP V2025
  • Idaho’s largest county by land area is Idaho County (8,478 sq mi); the smallest is Payette County (407 sq mi). Census TIGER 2026
  • Idaho’s highest population density is in Ada County (519/sq mi); the lowest is in Clark County (0/sq mi). calculated from Census PEP V2025 · Census TIGER 2026
  • Idaho’s highest poverty rate is in Madison County (24.3%); the lowest is in Blaine County (6.7%). Census SAIPE 2024
  • In Idaho, unemployment is highest in Clearwater County (5.4%) and lowest in Teton County (2.0%), for September 2026 (preliminary). BLS LAUS September 2026, preliminary
  • Idaho’s highest median age is in Custer County (60.0); the lowest is in Madison County (21.4). Census ACS 2020–2024
  • Idaho’s highest share of adults 25 and over with a bachelor’s degree or higher is in Teton County (49.9%); the lowest is in Lincoln County (11.1%). Census ACS 2020–2024

Every figure is a current official estimate from the source named, never 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 and in the table above.

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 (546,141 residents).

What county is Boise in?

Boise, population 237,242, 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, Blaine County is the richest at $117,269; the poorest is Madison County at $55,940. Census SAIPE 2024

What is the most populous county in Idaho?

Ada County, with 546,141 residents, about 26.9% of Idaho’s people. That is 697× the least populous, Clark County (783).

Sources & vintages

Data current through .

By , BSc Physics, University of Ljubljana · How this site is made