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County ZIP codes · Oregon · FIPS 41035

Klamath County, OR ZIP Codes

Klamath County, Oregon has 19 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 18 residential and 1 for PO boxes or a single organization. 17 of the residential ones lie mainly in Klamath County and 1 mainly in a neighboring county; 2 cross the county line. Median household income ranges from $51,780 in 97601 to $66,937 in 97603 (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Klamath County?

97601 · Klamath Falls: $52k97603 · Klamath Falls: $67k97604 · Crater Lake: –97621 · Beatty: $24k97622 · Bly: $25k97623 · Bonanza: $67k97624 · Chiloquin: $49k97625 · Dairy: $123k97626 · Fort Klamath: –97627 · Keno: $64k97632 · Malin: $44k97633 · Merrill: $62k97634 · Midland: $69k97639 · Sprague River: –97731 · Chemult: $148k97733 · Crescent: $46k97737 · Gilchrist: $108k97739 · La Pine: $59k9762497601977339760397739976239773197622976219762697625976279763997604976329773797601 · Klamath Falls: $52k97603 · Klamath Falls: $67k97604 · Crater Lake: –97621 · Beatty: $24k97622 · Bly: $25k97623 · Bonanza: $67k97624 · Chiloquin: $49k97625 · Dairy: $123k97626 · Fort Klamath: –97627 · Keno: $64k97632 · Malin: $44k97633 · Merrill: $62k97634 · Midland: $69k97639 · Sprague River: –97731 · Chemult: $148k97733 · Crescent: $46k97737 · Gilchrist: $108k97739 · La Pine: $59k976249760197733976039773997623977319762297621976259762797639976329773797601 · Klamath Falls: $52k97603 · Klamath Falls: $67k97604 · Crater Lake: –97621 · Beatty: $24k97622 · Bly: $25k97623 · Bonanza: $67k97624 · Chiloquin: $49k97625 · Dairy: $123k97626 · Fort Klamath: –97627 · Keno: $64k97632 · Malin: $44k97633 · Merrill: $62k97634 · Midland: $69k97639 · Sprague River: –97731 · Chemult: $148k97733 · Crescent: $46k97737 · Gilchrist: $108k97739 · La Pine: $59k97624976019773397603977399762397731976229762797639
The residential ZIP codes of Klamath 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 $51,780 and $66,927.

They carry 17 postal town names.

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

All 18 residential ZIP codes in Klamath County

17 ZIP codes lie mainly in Klamath County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Klamath County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
97603 Klamath Falls 33,222 98 $67k $283k 100%
97601 Klamath Falls 22,964 40 $52k $295k 100%
97624 Chiloquin 3,643 6 $49k $233k 100%
97623 Bonanza 2,813 8 $67k $292k 100%
97632 Malin 1,600 25 $44k $273k 100%
97633 Merrill 1,246 44 $62k $206k 100%
97733 Crescent 639 2 $46k $238k 100%
97737 Gilchrist 557 24 $108k $315k 100%
97622 Bly 369 2 $25k – 100%
97634 Midland 277 85 $69k $327k 100%
97621 Beatty 257 2 $24k – 100%
97626 Fort Klamath 251 2 – $251k 100%
97627 Keno 229 7 $64k – 100%
97625 Dairy 134 3 $123k $229k 100%
97731 Chemult 117 2 $148k $429k 71%
97639 Sprague River 15 0 – – 100%
97604 Crater Lake no residents 0 – – 100%

Partly in Klamath County

Residential ZIP codes mainly in another county that reach at least 1% into Klamath County, by their share here
In this county
97739 La Pine 13,183 43 $59k $371k 28%

Download the 19 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?

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

Share of each ZIP code's land in Klamath County and in the neighboring counties
ZIPIn KlamathElsewhere
9773928%Deschutes County 72%
9773171%Douglas County 29%

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

PO Box and single-organization ZIP codes

ZIP codes in Klamath County without a residential area (GeoNames postal codes)
ZIPPostal name
97602Klamath Falls

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Klamath County's ZIP codes use 2 prefixes: 976 and 977.

Three-digit prefixes of Klamath 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 Klamath County's
PrefixSectional centerHereAll codes
976 Medford, OR (SCF 975) 15 23
977 Eugene, OR (SCF 974) 4 33

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