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County ZIP codes · Idaho · FIPS 16055

Kootenai County, ID ZIP Codes

Kootenai County, Idaho has 15 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 13 residential and 2 for PO boxes or a single organization. 11 of the residential ones lie mainly in Kootenai County and 2 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $60,729 in 83876 (Worley) to $95,380 in 83858 (Rathdrum) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Kootenai County?

83801 · Athol: $71k83803 · Bayview: $61k83810 · Cataldo: $132k83814 · Coeur D Alene: $75k83815 · Coeur D Alene: $78k83833 · Harrison: $82k83835 · Hayden: $91k83842 · Medimont: $91k83854 · Post Falls: $83k83858 · Rathdrum: $95k83861 · Saint Maries: $66k83869 · Spirit Lake: $67k83876 · Worley: $61k8386183814838038380183833838108383583876838588386983854838428381583801 · Athol: $71k83803 · Bayview: $61k83810 · Cataldo: $132k83814 · Coeur D Alene: $75k83815 · Coeur D Alene: $78k83833 · Harrison: $82k83835 · Hayden: $91k83842 · Medimont: $91k83854 · Post Falls: $83k83858 · Rathdrum: $95k83861 · Saint Maries: $66k83869 · Spirit Lake: $67k83876 · Worley: $61k83861838148380383801838338381083835838768385883869838548384283801 · Athol: $71k83803 · Bayview: $61k83810 · Cataldo: $132k83814 · Coeur D Alene: $75k83815 · Coeur D Alene: $78k83833 · Harrison: $82k83835 · Hayden: $91k83842 · Medimont: $91k83854 · Post Falls: $83k83858 · Rathdrum: $95k83861 · Saint Maries: $66k83869 · Spirit Lake: $67k83876 · Worley: $61k8386183814838038380183833838108383583858838698385483842
The residential ZIP codes of Kootenai 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 $67,099 and $82,742.

They carry 12 postal town names.

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

All 13 residential ZIP codes in Kootenai County

11 ZIP codes lie mainly in Kootenai County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Kootenai County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
83854 Post Falls 54,851 707 $83k $490k 100%
83815 Coeur D Alene 41,405 2,651 $78k $498k 100%
83814 Coeur D Alene 26,059 134 $75k $590k 100%
83835 Hayden 24,238 244 $91k $562k 100%
83858 Rathdrum 20,137 180 $95k $508k 100%
83801 Athol 7,553 43 $71k $613k 65%
83869 Spirit Lake 5,504 84 $67k $466k 57%
83876 Worley 1,563 13 $61k $537k 100%
83810 Cataldo 1,412 9 $132k $571k 98%
83833 Harrison 1,365 13 $82k $562k 100%
83842 Medimont 141 7 $91k $625k 100%

Partly in Kootenai County

Residential ZIP codes mainly in another county that reach at least 1% into Kootenai County, by their share here
In this county
83803 Bayview 650 5 $61k $703k 7%
83861 Saint Maries 7,275 16 $66k $308k 5%

Download the 15 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 Kootenai County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Kootenai County and in the neighboring counties
ZIPIn KootenaiElsewhere
8380165%Bonner County 35%
838615%Benewah County 89%; Shoshone County 6%
8386957%Bonner County 43%
8381098%Shoshone County 3%
838037%Bonner County 93%

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

PO Box and single-organization ZIP codes

ZIP codes in Kootenai County without a residential area (GeoNames postal codes)
ZIPPostal name
83816Coeur d'Alene
83877Post Falls

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Kootenai County starts with 838.

Three-digit prefixes of Kootenai 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 Kootenai County's
PrefixSectional centerHereAll codes
838 Spokane, WA (SCF 990) 15 64

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