Residential delivery area · Oregon
ZIP Code 97603: Klamath Falls, OR
ZIP code 97603 uses the postal name Klamath Falls, Oregon and lies entirely in Klamath County (Census 2020 ZIP-county file). About 33,000 people live there (Census Bureau, ACS 2020-2024), the more populous of Klamath Falls's 2 residential ZIP codes. Median household income is $66,937 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Altamont (2%) and Falcon Heights (under 1%), and 2% in smaller places; 95% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Klamath Falls · 2 residential ZIPs
- County
- Klamath County
- Census places
- Altamont (2%) census-designated place; Falcon Heights (under 1%) census-designated place
- Micro area
- Klamath Falls, OR
- House district
- OR-2 119th Congress
- State
- Oregon
- Time zone
- Pacific
- Land area
- 340.6 sq mi · 98 people per sq mi
- PO Box ZIPs
- 97602 also use the name Klamath Falls
Where is ZIP code 97603?
97603 centers on 42.133°, -121.665° and covers 340.6 square miles of land plus 5.0 of water. It borders 9 ZIP codes: 97634, 97633, 97625, 97632, 97623, 97627, 96023, 96134, 97601.
The map draws ZIP code areas only. For the streets inside 97603, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 97603 compare with the rest of Klamath Falls?
| Measure | 97603 | In Klamath Falls | In Klamath County | In OR |
|---|---|---|---|---|
| People (ACS 2020-2024) | 33,222 | 1st of 2 | 1st of 18 | 46th of 428 |
| Median household income | $67k | 1st of 2 | 1st of 4 | 166th of 226 |
| Median home value | $283k | 2nd of 2 | 4th of 6 | 230th of 257 |
Its median household income is higher than in 42% of U.S. residential ZIP codes, and it is denser than 53% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 97603?
The 2020 Census counted 31,302 people in 97603; the ACS, which samples households over 2020-2024, estimates 33,222. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 33,222
- 2020 Census count
- 31,302
- Households
- 13,273
- Median age
- 38.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 97603?
Of the 33,222 people the ACS estimates in 97603, 24.4% are under 18 and 20.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (73.3%), then Hispanic or Latino (15.1%).
- Under 1824.4%
- 18 to 6455.2%
- 65 and older20.3%
- White, not Hispanic73.3%
- Hispanic or Latino15.1%
- Other or two or more10.1%
- Black, not Hispanic0.9%
- Asian, not Hispanic0.5%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 97603 earn?
Median household income is $66,937 (ACS 2020-2024), the highest of the 4 ranked ZIP codes in Klamath County.
- Median household income
- $66,937
- Income per person
- $33,561
- Below the poverty line
- 14.8%
- Unemployed (of the labor force)
- 6.1%
- Adults 25+ with a bachelor's degree
- 23.4%
- Adjusted gross income per tax return, 2022
- $61,12213,390 returns; wages 69% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 97603?
FHFA's house price index for 97603, built from repeat sales and appraisals of the same homes, rose 106% from 2015 to 2025 and rose 54% from 2020 to 2025, and moved +1.9% in 2025.
- Median home value (owners' estimate)
- $282,800
- Median gross rent
- $1,022
- Homes owned by their occupants
- 70.3%
- Housing units
- 13,884
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 97603?
662 business establishments had a location in this ZIP code in 2023, 37 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction105
- Retail trade94
- Accommodation and food services82
- Health care and social assistance71
- Other services (except public administration)71
- Real estate and rental and leasing48
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 97603?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 97634 | Midland | 277 | $69k | 7.1 mi |
| 97633 | Merrill | 1,246 | $62k | 8.6 mi |
| 97625 | Dairy | 134 | $123k | 13.3 mi |
| 97632 | Malin | 1,600 | $44k | 14.9 mi |
| 97623 | Bonanza | 2,813 | $67k | 18.6 mi |
| 97627 | Keno | 229 | $64k | 21.3 mi |
| 96023 | Dorris, CA | 1,178 | $47k | 22.3 mi |
| 96134 | Tulelake, CA | 2,346 | $50k | 23.4 mi |
| 97601 | Klamath Falls | 22,964 | $52k | 30.0 mi |
| 97639 | Sprague River | 15 | – | 22.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.