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Idaho: demographics by county and ZIP code

Olympus publishes Census demographics for 44 counties or county equivalents and 280 ZIP Code Tabulation Areas (ZCTAs) in Idaho (ACS 5-year 2020-2024). Each has its own page with population, income, home value, rent, education, poverty and unemployment estimates and their margins of error.

A ZCTA is listed under the state of its primary (2020) county, even when it crosses a state line. Population figures below are ACS 5-year estimates with 90% margins of error.

Data as of Oct 22, 2026 (Olympus publication) · Markdown version

  • ZCTAs are Census statistical areas that approximate USPS ZIP code delivery areas; the code was matched to the ZCTA with the same code, which may not cover the same addresses as the ZIP code.
  • Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.

Counties (44)

CountyFIPSTotal population
Ada County, Idaho16001518,935
Adams County, Idaho160034,744
Bannock County, Idaho1600589,454
Bear Lake County, Idaho160076,650
Benewah County, Idaho1600910,142
Bingham County, Idaho1601149,664
Blaine County, Idaho1601324,951
Boise County, Idaho160158,273
Bonner County, Idaho1601751,049
Bonneville County, Idaho16019129,523
Boundary County, Idaho1602113,172
Butte County, Idaho160232,684
Camas County, Idaho160251,124 (±148)
Canyon County, Idaho16027250,790
Caribou County, Idaho160297,162
Cassia County, Idaho1603125,483
Clark County, Idaho16033849 (±148)
Clearwater County, Idaho160359,012
Custer County, Idaho160374,470
Elmore County, Idaho1603929,321
Franklin County, Idaho1604115,056
Fremont County, Idaho1604313,943
Gem County, Idaho1604520,614
Gooding County, Idaho1604715,931
Idaho County, Idaho1604917,432
Jefferson County, Idaho1605133,154
Jerome County, Idaho1605325,173
Kootenai County, Idaho16055181,996
Latah County, Idaho1605741,049
Lemhi County, Idaho160598,249
Lewis County, Idaho160613,682
Lincoln County, Idaho160635,358
Madison County, Idaho1606554,618
Minidoka County, Idaho1606722,208
Nez Perce County, Idaho1606942,697
Oneida County, Idaho160714,768
Owyhee County, Idaho1607312,503
Payette County, Idaho1607526,771
Power County, Idaho160778,133
Shoshone County, Idaho1607913,785
Teton County, Idaho1608112,425
Twin Falls County, Idaho1608393,734
Valley County, Idaho1608512,389
Washington County, Idaho1608711,142

ZIP Code Tabulation Areas (280)

ZCTAPrimary countyTotal population
83120Bonneville County, Idaho232 (±175)
83201Bannock County, Idaho39,902 (±1,161)
83202Bannock County, Idaho24,513 (±829)
83203Bingham County, Idaho38 (±10)
83204Power County, Idaho18,580 (±979)
83209Bannock County, Idaho937 (±320)
83210Bingham County, Idaho3,843 (±515)
83211Power County, Idaho6,743 (±246)
83212Power County, Idaho388 (±178)
83213Butte County, Idaho1,349 (±191)
83214Bannock County, Idaho586 (±133)
83215Bingham County, Idaho15 (±13)
83217Caribou County, Idaho712 (±226)
83218Bingham County, Idaho569 (±202)
83220Bear Lake County, Idaho138 (±93)
83221Bingham County, Idaho29,081 (±856)
83223Bear Lake County, Idaho255 (±85)
83226Custer County, Idaho2,100 (±313)
83227Custer County, Idaho200 (±119)
83228Franklin County, Idaho1,134 (±326)
83232Franklin County, Idaho562 (±208)
83233Bear Lake County, Idaho147 (±109)
83234Bannock County, Idaho1,417 (±269)
83235Custer County, Idaho1 (±2)
83236Bingham County, Idaho1,840 (±330)
83237Franklin County, Idaho1,567 (±289)
83238Bear Lake County, Idaho129 (±93)
83239Bear Lake County, Idaho887 (±200)
83241Caribou County, Idaho2,488 (±254)
83243Oneida County, Idaho49 (±53)
83244Butte County, Idaho386 (±156)
83245Bannock County, Idaho2,321 (±435)
83246Bannock County, Idaho821 (±279)
83250Bannock County, Idaho2,179 (±397)
83251Custer County, Idaho1,443 (±335)
83252Oneida County, Idaho4,707 (±58)
83253Lemhi County, Idaho112 (±80)
83254Bear Lake County, Idaho3,792 (±220)
83255Butte County, Idaho1,222 (±209)
83261Bear Lake County, Idaho562 (±156)
83262Bingham County, Idaho1,090 (±343)
83263Franklin County, Idaho9,940 (±498)
83271Power County, Idaho415 (±159)
83272Bear Lake County, Idaho219 (±107)
83274Bingham County, Idaho11,699 (±733)
83276Caribou County, Idaho4,155 (±211)
83277Bingham County, Idaho164 (±124)
83278Custer County, Idaho454 (±294)
83281Bannock County, Idaho148 (±105)
83283Franklin County, Idaho185 (±98)
83285Bonneville County, Idaho80 (±72)
83286Franklin County, Idaho1,668 (±355)
83287Bear Lake County, Idaho255 (±94)
83301Twin Falls County, Idaho63,592 (±1,027)
83302Twin Falls County, Idaho35 (±29)
83311Cassia County, Idaho903 (±429)
83312Cassia County, Idaho278 (±221)
83313Blaine County, Idaho3,692 (±393)
83314Gooding County, Idaho670 (±228)
83316Twin Falls County, Idaho10,456 (±763)
83318Cassia County, Idaho19,459 (±765)
83320Blaine County, Idaho1,600 (±426)
83321Twin Falls County, Idaho482 (±150)
83322Camas County, Idaho16 (±21)
83323Cassia County, Idaho1,984 (±769)
83324Lincoln County, Idaho851 (±202)
83325Jerome County, Idaho944 (±214)
83327Camas County, Idaho1,037 (±148)
83328Twin Falls County, Idaho6,320 (±633)
83330Gooding County, Idaho7,347 (±510)
83332Twin Falls County, Idaho2,569 (±362)
83333Blaine County, Idaho12,682 (±518)
83334Twin Falls County, Idaho2,227 (±397)
83335Jerome County, Idaho2,335 (±305)
83336Minidoka County, Idaho6,075 (±549)
83337Elmore County, Idaho29 (±22)
83338Jerome County, Idaho21,944 (±447)
83340Blaine County, Idaho5,325 (±468)
83341Twin Falls County, Idaho9,531 (±720)
83342Cassia County, Idaho1,231 (±380)
83344Cassia County, Idaho1,234 (±271)
83346Cassia County, Idaho1,451 (±289)
83347Minidoka County, Idaho3,465 (±538)
83348Blaine County, Idaho124 (±83)
83349Lincoln County, Idaho1,211 (±205)
83350Minidoka County, Idaho12,671 (±654)
83352Lincoln County, Idaho3,317 (±279)
83353Blaine County, Idaho1,450 (±415)
83354Blaine County, Idaho10 (±16)
83355Gooding County, Idaho5,469 (±416)
83401Bonneville County, Idaho47,972 (±1,725)
83402Bonneville County, Idaho29,994 (±1,279)
83404Bonneville County, Idaho27,500 (±1,397)
83406Bonneville County, Idaho19,696 (±1,122)
83420Fremont County, Idaho2,580 (±428)
83421Fremont County, Idaho220 (±180)
83422Teton County, Idaho3,847 (±492)
83423Clark County, Idaho729 (±139)
83424Teton County, Idaho168 (±119)
83425Jefferson County, Idaho622 (±268)
83427Bonneville County, Idaho2,931 (±75)
83428Bonneville County, Idaho576 (±267)
83429Fremont County, Idaho628 (±186)
83431Jefferson County, Idaho1,045 (±272)
83433Fremont County, Idaho36 (±26)
83434Jefferson County, Idaho1,816 (±397)
83435Jefferson County, Idaho600 (±184)
83436Madison County, Idaho778 (±277)
83438Fremont County, Idaho327 (±251)
83440Madison County, Idaho51,421 (±645)
83442Jefferson County, Idaho25,609 (±707)
83443Bonneville County, Idaho1,364 (±431)
83444Jefferson County, Idaho1,261 (±308)
83445Fremont County, Idaho7,975 (±465)
83446Clark County, Idaho24 (±23)
83448Madison County, Idaho3,365 (±621)
83449Bonneville County, Idaho273 (±124)
83450Jefferson County, Idaho1,207 (±267)
83451Madison County, Idaho993 (±206)
83452Teton County, Idaho2,237 (±434)
83454Bonneville County, Idaho409 (±189)
83455Teton County, Idaho6,173 (±508)
83460Madison County, Idaho56 (±88)
83462Lemhi County, Idaho667 (±284)
83463Lemhi County, Idaho66 (±55)
83464Lemhi County, Idaho296 (±97)
83465Lemhi County, Idaho104 (±44)
83466Lemhi County, Idaho197 (±129)
83467Lemhi County, Idaho6,590 (±339)
83468Lemhi County, Idaho191 (±120)
83469Lemhi County, Idaho25 (±22)
83501Nez Perce County, Idaho37,520 (±400)
83520Clearwater County, Idaho144 (±60)
83522Idaho County, Idaho2,692 (±341)
83523Lewis County, Idaho797 (±97)
83524Nez Perce County, Idaho1,050 (±163)
83525Idaho County, Idaho296 (±157)
83526Idaho County, Idaho242 (±91)
83530Idaho County, Idaho6,406 (±472)
83533Idaho County, Idaho121 (±55)
83535Nez Perce County, Idaho1,143 (±157)
83536Idaho County, Idaho4,444 (±383)
83537Latah County, Idaho1,125 (±231)
83539Idaho County, Idaho2,427 (±367)
83540Nez Perce County, Idaho2,096 (±289)
83541Nez Perce County, Idaho940 (±134)
83542Idaho County, Idaho147 (±113)
83543Lewis County, Idaho739 (±90)
83544Clearwater County, Idaho6,798 (±237)
83545Nez Perce County, Idaho458 (±104)
83546Clearwater County, Idaho422 (±116)
83547Idaho County, Idaho241 (±120)
83548Nez Perce County, Idaho145 (±52)
83549Idaho County, Idaho587 (±109)
83552Idaho County, Idaho806 (±173)
83553Clearwater County, Idaho1,038 (±217)
83554Idaho County, Idaho350 (±122)
83555Nez Perce County, Idaho493 (±69)
83602Boise County, Idaho0 (±12)
83604Owyhee County, Idaho583 (±265)
83605Canyon County, Idaho41,325 (±1,855)
83607Canyon County, Idaho35,491 (±1,927)
83610Washington County, Idaho992 (±210)
83611Valley County, Idaho3,329 (±615)
83612Adams County, Idaho2,085 (±248)
83615Valley County, Idaho1,452 (±483)
83616Ada County, Idaho35,413 (±724)
83617Gem County, Idaho19,058 (±402)
83619Payette County, Idaho8,823 (±474)
83622Boise County, Idaho2,132 (±246)
83623Elmore County, Idaho1,521 (±274)
83624Owyhee County, Idaho1,349 (±403)
83626Canyon County, Idaho1,935 (±412)
83627Owyhee County, Idaho575 (±176)
83628Owyhee County, Idaho5,006 (±337)
83629Boise County, Idaho1,749 (±370)
83631Boise County, Idaho1,916 (±392)
83632Adams County, Idaho704 (±187)
83633Elmore County, Idaho502 (±156)
83634Ada County, Idaho36,286 (±1,025)
83636Gem County, Idaho109 (±107)
83637Boise County, Idaho226 (±86)
83638Valley County, Idaho7,750 (±576)
83639Owyhee County, Idaho3,311 (±362)
83641Owyhee County, Idaho4,061 (±550)
83642Ada County, Idaho62,279 (±2,245)
83643Adams County, Idaho166 (±105)
83644Canyon County, Idaho16,293 (±1,263)
83645Washington County, Idaho970 (±164)
83646Ada County, Idaho76,023 (±2,328)
83647Elmore County, Idaho22,952 (±564)
83648Elmore County, Idaho3,219 (±386)
83650Owyhee County, Idaho464 (±168)
83651Canyon County, Idaho38,121 (±2,863)
83654Adams County, Idaho1,763 (±258)
83655Payette County, Idaho5,748 (±476)
83656Canyon County, Idaho560 (±178)
83657Gem County, Idaho156 (±103)
83660Canyon County, Idaho6,434 (±692)
83661Payette County, Idaho11,105 (±577)
83666Boise County, Idaho30 (±15)
83669Ada County, Idaho16,827 (±826)
83670Gem County, Idaho752 (±316)
83672Washington County, Idaho9,176 (±279)
83676Canyon County, Idaho5,105 (±759)
83677Valley County, Idaho17 (±25)
83686Canyon County, Idaho60,993 (±2,476)
83687Canyon County, Idaho43,135 (±1,695)
83702Ada County, Idaho24,163 (±1,245)
83703Ada County, Idaho17,583 (±1,204)
83704Ada County, Idaho42,719 (±2,189)
83705Ada County, Idaho26,830 (±1,637)
83706Ada County, Idaho35,524 (±1,680)
83709Ada County, Idaho58,928 (±2,502)
83712Ada County, Idaho9,071 (±719)
83713Ada County, Idaho31,549 (±2,011)
83714Ada County, Idaho27,564 (±975)
83716Elmore County, Idaho21,402 (±1,111)
83720Ada County, Idaho0 (±12)
83725Ada County, Idaho0 (±12)
83801Kootenai County, Idaho7,553 (±1,008)
83802Shoshone County, Idaho124 (±49)
83803Bonner County, Idaho650 (±385)
83804Bonner County, Idaho2,092 (±470)
83805Boundary County, Idaho9,174 (±646)
83806Latah County, Idaho172 (±63)
83808Shoshone County, Idaho132 (±76)
83809Bonner County, Idaho393 (±153)
83810Kootenai County, Idaho1,412 (±512)
83811Bonner County, Idaho1,997 (±638)
83812Shoshone County, Idaho11 (±10)
83813Bonner County, Idaho1,249 (±295)
83814Kootenai County, Idaho26,059 (±1,311)
83815Kootenai County, Idaho41,405 (±1,178)
83821Bonner County, Idaho259 (±132)
83822Bonner County, Idaho2,442 (±486)
83823Latah County, Idaho1,559 (±231)
83824Benewah County, Idaho452 (±172)
83825Bonner County, Idaho226 (±126)
83826Boundary County, Idaho63 (±55)
83827Clearwater County, Idaho154 (±60)
83830Benewah County, Idaho45 (±56)
83832Latah County, Idaho1,961 (±285)
83833Kootenai County, Idaho1,365 (±292)
83834Latah County, Idaho189 (±147)
83835Kootenai County, Idaho24,238 (±937)
83836Bonner County, Idaho980 (±219)
83837Shoshone County, Idaho3,203 (±356)
83839Shoshone County, Idaho1,287 (±425)
83840Bonner County, Idaho653 (±184)
83841Bonner County, Idaho492 (±299)
83842Kootenai County, Idaho141 (±100)
83843Latah County, Idaho26,591 (±488)
83844Latah County, Idaho2,971 (±146)
83845Boundary County, Idaho2,202 (±493)
83846Shoshone County, Idaho918 (±270)
83847Boundary County, Idaho1,714 (±443)
83848Bonner County, Idaho315 (±182)
83849Shoshone County, Idaho2,086 (±441)
83850Shoshone County, Idaho2,704 (±378)
83851Benewah County, Idaho2,113 (±230)
83852Bonner County, Idaho1,515 (±353)
83854Kootenai County, Idaho54,851 (±1,180)
83855Latah County, Idaho2,260 (±335)
83856Bonner County, Idaho6,885 (±892)
83857Latah County, Idaho1,074 (±437)
83858Kootenai County, Idaho20,137 (±1,006)
83860Bonner County, Idaho7,806 (±1,017)
83861Benewah County, Idaho7,275 (±375)
83864Bonner County, Idaho20,514 (±797)
83866Benewah County, Idaho352 (±246)
83867Shoshone County, Idaho652 (±318)
83868Shoshone County, Idaho906 (±240)
83869Kootenai County, Idaho5,504 (±902)
83870Benewah County, Idaho421 (±202)
83871Latah County, Idaho2,240 (±313)
83872Latah County, Idaho818 (±243)
83873Shoshone County, Idaho1,569 (±251)
83874Shoshone County, Idaho76 (±51)
83876Kootenai County, Idaho1,563 (±209)

Sources

  • American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024. https://api.census.gov/data/2024/acs/acs5
  • Published by Olympus on Oct 22, 2026.
  • Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
  • This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Get this data from the API

The same figures, with provenance on every value, from the API (free API key, reference).

curl
curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/geographies?type=county&state=ID" -H "X-API-Key: $OLYMPUS_API_KEY"

curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/geographies?type=zcta&state=ID" -H "X-API-Key: $OLYMPUS_API_KEY"

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