Plain

County ZIP codes · Washington · FIPS 53037

Kittitas County, WA ZIP Codes

Kittitas County, Washington has 12 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 10 of the residential ones lie mainly in Kittitas County and 2 mainly in a neighboring county; 3 cross the county line. Median household income ranges from $57,392 in 98901 (Yakima) to $73,603 in 98922 (Cle Elum) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Kittitas County?

98068 · Snoqualmie Pass: $100k98828 · Malaga: $70k98901 · Yakima: $57k98922 · Cle Elum: $74k98925 · Easton: $97k98926 · Ellensburg: $71k98934 · Kittitas: $79k98940 · Ronald: $246k98941 · Roslyn: $105k98943 · South Cle Elum: $67k98946 · Thorp: $122k98950 · Vantage: –98926989229806898901989259894098828989509894698068 · Snoqualmie Pass: $100k98828 · Malaga: $70k98901 · Yakima: $57k98922 · Cle Elum: $74k98925 · Easton: $97k98926 · Ellensburg: $71k98934 · Kittitas: $79k98940 · Ronald: $246k98941 · Roslyn: $105k98943 · South Cle Elum: $67k98946 · Thorp: $122k98950 · Vantage: –989269892298068989019892598940988289894698068 · Snoqualmie Pass: $100k98828 · Malaga: $70k98901 · Yakima: $57k98922 · Cle Elum: $74k98925 · Easton: $97k98926 · Ellensburg: $71k98934 · Kittitas: $79k98940 · Ronald: $246k98941 · Roslyn: $105k98943 · South Cle Elum: $67k98946 · Thorp: $122k98950 · Vantage: –989269892298068989019892598946
The residential ZIP codes of Kittitas 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?

They carry 12 postal town names.

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

All 12 residential ZIP codes in Kittitas County

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

Residential ZIP codes mainly in Kittitas County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
98926 Ellensburg 34,353 37 $71k $470k 100%
98922 Cle Elum 7,688 18 $74k $648k 100%
98941 Roslyn 1,076 679 $105k $565k 100%
98940 Ronald 858 5 $246k $613k 100%
98925 Easton 850 7 $97k $769k 100%
98934 Kittitas 775 680 $79k $320k 100%
98943 South Cle Elum 579 695 $67k $374k 100%
98068 Snoqualmie Pass 482 2 $100k $904k 55%
98946 Thorp 398 9 $122k $385k 100%
98950 Vantage 61 2 – – 100%

Partly in Kittitas County

Residential ZIP codes mainly in another county that reach at least 1% into Kittitas County, by their share here
In this county
98828 Malaga 1,898 31 $70k $438k 9%
98901 Yakima 31,366 170 $57k $280k 9%

Download the 12 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?

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

Share of each ZIP code's land in Kittitas County and in the neighboring counties
ZIPIn KittitasElsewhere
989019%Yakima County 91%
988289%Chelan County 91%
9806855%King County 45%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Kittitas County's ZIP codes use 3 prefixes: 980, 988 and 989.

Three-digit prefixes of Kittitas 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 Kittitas County's
PrefixSectional centerHereAll codes
980 Seattle, WA (SCF 980) 1 71
988 Wenatchee, WA (SCF 988) 1 46
989 Yakima, WA (SCF 989) 10 34

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