Plain

County ZIP codes · Idaho · FIPS 16049

Idaho County, ID ZIP Codes

Idaho County, Idaho has 18 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 16 residential and 2 for PO boxes or a single organization. 12 of the residential ones lie mainly in Idaho County and 4 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $53,707 in 83536 (Kamiah) to $91,750 in 83654 (New Meadows) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Idaho County?

59847 · Lolo: $87k83522 · Cottonwood: $80k83525 · Elk City: $45k83526 · Ferdinand: $70k83530 · Grangeville: $80k83533 · Greencreek: $129k83536 · Kamiah: $54k83539 · Kooskia: $58k83542 · Lucile: –83547 · Pollock: $50k83549 · Riggins: $57k83552 · Stites: $56k83554 · White Bird: $39k83611 · Cascade: $77k83638 · McCall: $75k83654 · New Meadows: $92k83611835398363883525835498353083522836545984783554835368354259847 · Lolo: $87k83522 · Cottonwood: $80k83525 · Elk City: $45k83526 · Ferdinand: $70k83530 · Grangeville: $80k83533 · Greencreek: $129k83536 · Kamiah: $54k83539 · Kooskia: $58k83542 · Lucile: –83547 · Pollock: $50k83549 · Riggins: $57k83552 · Stites: $56k83554 · White Bird: $39k83611 · Cascade: $77k83638 · McCall: $75k83654 · New Meadows: $92k83611835398363883525835498353083522836545984783554835368354259847 · Lolo: $87k83522 · Cottonwood: $80k83525 · Elk City: $45k83526 · Ferdinand: $70k83530 · Grangeville: $80k83533 · Greencreek: $129k83536 · Kamiah: $54k83539 · Kooskia: $58k83542 · Lucile: –83547 · Pollock: $50k83549 · Riggins: $57k83552 · Stites: $56k83554 · White Bird: $39k83611 · Cascade: $77k83638 · McCall: $75k83654 · New Meadows: $92k83611835398352583549835308352283654598478355483536
The residential ZIP codes of Idaho County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $75,217 and $79,688.

They carry 16 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 16 residential ZIP codes in Idaho County

12 ZIP codes lie mainly in Idaho County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Idaho County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
83530 Grangeville 6,406 16 $80k $324k 100%
83536 Kamiah 4,444 22 $54k $242k 92%
83522 Cottonwood 2,692 6 $80k $250k 100%
83539 Kooskia 2,427 1 $58k $348k 100%
83552 Stites 806 7 $56k $240k 100%
83549 Riggins 587 1 $57k $360k 100%
83554 White Bird 350 2 $39k $427k 100%
83525 Elk City 296 1 $45k $289k 100%
83526 Ferdinand 242 6 $70k $246k 100%
83547 Pollock 241 7 $50k $467k 100%
83542 Lucile 147 2 – – 100%
83533 Greencreek 121 4 $129k $353k 100%

Partly in Idaho County

Residential ZIP codes mainly in another county that reach at least 1% into Idaho County, by their share here
In this county
83638 McCall 7,750 12 $75k $730k 47%
83611 Cascade 3,329 1 $77k $429k 40%
83654 New Meadows 1,763 5 $92k $535k 21%
59847 Lolo 6,015 20 $87k $450k 5%

Download the 18 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Idaho County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Idaho County and in the neighboring counties
ZIPIn IdahoElsewhere
8363847%Valley County 52%
598475%Missoula County 95%
8353692%Lewis County 8%
8361140%Valley County 60%
8365421%Adams County 79%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Idaho County without a residential area (GeoNames postal codes)
ZIPPostal name
83531Fenn
83671Warren

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Idaho County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Idaho County's ZIP codes use 3 prefixes: 598, 835 and 836.

Three-digit prefixes of Idaho County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Idaho County's
PrefixSectional centerHereAll codes
598 Missoula, MT (SCF 598) 1 53
835 Spokane, WA (SCF 990) 13 28
836 Boise, ID (SCF 836) 4 58

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.