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RANKING · 2000 CENSUS · 44 SHOWN OF 44

Largest senior population, Idaho counties · 2000

Idaho counties home to the most residents aged 65 and over as of 2000. Ranked by number of people, not the senior share. This list covers the 44 counties in Idaho that qualify, ranked against each other statewide.

IdahoAll statesAll rankings
SAME RANKING BYCitiesStatesMetros
RELATEDLargest foreign-born populationMost residents with a disabilityLargest veteran populationMost uninsured peopleMost unmarried peopleMost unmarried men
YEAR19902000201020202024
Largest senior population by state
All USAlaskaAlabamaArkansasArizonaCaliforniaColoradoFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming
RANKPLACESTATEPOPRESIDENTS 65 AND OVERVS 1990
01Ada County, IDID546,14127,301+27%
02Canyon County, IDID275,12314,461+18%
03Kootenai County, IDID191,86413,345+43%
04Twin Falls County, IDID97,5399,172+12%
05Bonneville County, IDID135,7718,398+30%
06Bannock County, IDID91,5917,662+14%
07Nez Perce County, IDID42,9056,175+14%
08Bonner County, IDID54,4204,835+23%
09Bingham County, IDID51,1534,318+15%
10Latah County, IDID41,8423,312+12%
11Cassia County, IDID26,3972,730+15%
12Payette County, IDID27,8242,723+2%
13Minidoka County, IDID22,9112,658+11%
14Idaho County, IDID17,8742,644+23%
15Shoshone County, IDID14,1302,400+3%
16Gem County, IDID21,7732,374+12%
17Jerome County, IDID26,3622,251+6%
18Gooding County, IDID16,4462,178+9%
19Elmore County, IDID29,4652,079+31%
20Jefferson County, IDID35,2971,775+10%
21Washington County, IDID11,5831,763+5%
22Madison County, IDID55,1721,659+21%
23Blaine County, IDID25,5171,482+65%
24Fremont County, IDID14,2081,469+19%
25Clearwater County, IDID9,1181,393+9%
26Boundary County, IDID13,9971,321+29%
27Franklin County, IDID15,8891,321+3%
28Lemhi County, IDID8,4741,308+9%
29Benewah County, IDID10,5081,305+25%
30Owyhee County, IDID12,6611,293+21%
31Valley County, IDID12,8311,134+45%
32Bear Lake County, IDID6,727997+9%
33Caribou County, IDID7,252994+22%
34Power County, IDID8,246783+8%
35Boise County, IDID8,545732+91%
36Lewis County, IDID3,704693+13%
37Oneida County, IDID5,085655+6%
38Custer County, IDID4,636630+27%
39Adams County, IDID5,013561+18%
40Lincoln County, IDID5,603528+13%
41Teton County, IDID13,254448+17%
42Butte County, IDID2,783433+15%
43Camas County, IDID1,316129+30%
44Clark County, IDID78394+1%
SHOWING 1–44 OF 44
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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS