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County ZIP codes · Washington · FIPS 53047

Okanogan County, WA ZIP Codes

Okanogan County, Washington has 22 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 19 of the residential ones lie mainly in Okanogan County and 3 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $44,201 in 98844 (Oroville) to $84,464 in 98846 (Pateros) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Okanogan County?

98812 · Brewster: $59k98813 · Bridgeport: $50k98814 · Carlton: $99k98816 · Chelan: $83k98819 · Conconully: $63k98827 · Loomis: $43k98829 · Malott: $37k98833 · Mazama: $118k98834 · Methow: $72k98840 · Okanogan: $57k98841 · Omak: $72k98844 · Oroville: $44k98846 · Pateros: $85k98849 · Riverside: $64k98855 · Tonasket: $60k98856 · Twisp: $70k98859 · Wauconda: $98k98862 · Winthrop: $71k99116 · Coulee Dam: $66k99124 · Elmer City: $70k99155 · Nespelem: $51k99166 · Republic: $57k98816988409886298855988569883399166988419884498827991559881298849988149881998846988599881398834988299911698812 · Brewster: $59k98813 · Bridgeport: $50k98814 · Carlton: $99k98816 · Chelan: $83k98819 · Conconully: $63k98827 · Loomis: $43k98829 · Malott: $37k98833 · Mazama: $118k98834 · Methow: $72k98840 · Okanogan: $57k98841 · Omak: $72k98844 · Oroville: $44k98846 · Pateros: $85k98849 · Riverside: $64k98855 · Tonasket: $60k98856 · Twisp: $70k98859 · Wauconda: $98k98862 · Winthrop: $71k99116 · Coulee Dam: $66k99124 · Elmer City: $70k99155 · Nespelem: $51k99166 · Republic: $57k98816988409886298855988569883399166988419884498827991559881298849988149881998846988599881398834988299911698812 · Brewster: $59k98813 · Bridgeport: $50k98814 · Carlton: $99k98816 · Chelan: $83k98819 · Conconully: $63k98827 · Loomis: $43k98829 · Malott: $37k98833 · Mazama: $118k98834 · Methow: $72k98840 · Okanogan: $57k98841 · Omak: $72k98844 · Oroville: $44k98846 · Pateros: $85k98849 · Riverside: $64k98855 · Tonasket: $60k98856 · Twisp: $70k98859 · Wauconda: $98k98862 · Winthrop: $71k99116 · Coulee Dam: $66k99124 · Elmer City: $70k99155 · Nespelem: $51k99166 · Republic: $57k988169884098862988559885698833991669884498827988129884998814
The residential ZIP codes of Okanogan 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 $49,969 and $71,809.

They carry 22 postal town names.

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

All 22 residential ZIP codes in Okanogan County

19 ZIP codes lie mainly in Okanogan County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Okanogan County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
98841 Omak 9,737 33 $72k $274k 100%
98855 Tonasket 5,857 9 $60k $258k 100%
98840 Okanogan 4,892 9 $57k $262k 100%
98844 Oroville 4,873 15 $44k $294k 100%
98812 Brewster 4,834 25 $59k $355k 77%
98862 Winthrop 2,995 6 $71k $720k 100%
98856 Twisp 2,920 7 $70k $485k 100%
99116 Coulee Dam 1,786 38 $66k $239k 98%
98846 Pateros 1,376 16 $85k $338k 96%
98849 Riverside 1,096 6 $64k $277k 100%
99155 Nespelem 1,009 3 $51k $143k 100%
98814 Carlton 473 3 $99k $583k 100%
98859 Wauconda 435 4 $98k – 100%
98829 Malott 361 5 $37k $392k 100%
99124 Elmer City 326 934 $70k $202k 100%
98827 Loomis 289 1 $43k – 100%
98833 Mazama 245 0 $118k $610k 100%
98819 Conconully 182 1 $63k $219k 100%
98834 Methow 178 2 $72k $590k 100%

Partly in Okanogan County

Residential ZIP codes mainly in another county that reach at least 1% into Okanogan County, by their share here
In this county
98813 Bridgeport 2,826 28 $50k $177k 22%
99166 Republic 2,953 6 $57k $286k 2%
98816 Chelan 7,752 16 $83k $499k 1%

Download the 22 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?

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

Share of each ZIP code's land in Okanogan County and in the neighboring counties
ZIPIn OkanoganElsewhere
988161%Chelan County 99%
9881277%Douglas County 23%
991662%Ferry County 98%
9881322%Douglas County 78%
9911698%Grant County 2%
9884696%Chelan County 4%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Okanogan County's ZIP codes use 2 prefixes: 988 and 991.

Three-digit prefixes of Okanogan 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 Okanogan County's
PrefixSectional centerHereAll codes
988 Wenatchee, WA (SCF 988) 18 46
991 Spokane, WA (SCF 990) 4 67

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