🇺🇸 United States ZIP Code

STANDARD

97603

Klamath Falls

ZIP Code 97603 is a standard zip code serving Klamath Falls, Klamath Falls, Oregon (OR), in Klamath County, United States. It has an estimated population of 29,525 with a median household income of $45,456. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Oregon (OR)
County: Klamath
City: Klamath Falls
Timezone: America/Los_Angeles

Coordinates

Latitude: 42.191900
Longitude: -121.724100

Geographic Details

Land Area: 310.84 mi²
Water Area: 5.14 mi²
Population Density: 95.0 people per mi² (50th percentile)
Bounding Box: 42.375341°N, 42.000311°S, -121.450178°E, -121.934029°W

With 29,525 residents spread across 310.84 square miles, this area has a population density of 95.0 people per square mile.

Demographics

29,525

Population

85th percentile

$45,456

Median Income

40th percentile

$156,900

Median Home Value

60th percentile

310.84 mi²

Land Area

The median household income in 97603 is $45,456, and the median home value is $156,900.

Housing

12,962

Total Units

11,960

Occupied Units

92.3%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Klamath Falls, OR.

97601

Klamath Falls

97602

Klamath Falls

Similar ZIP Codes in Oregon

ZIP codes with similar median household income in Oregon.

97827

Elgin

$45,217

97361

Monmouth

$38,868

97426

Creswell

$50,503

97365

Newport

$45,185

97116

Forest Grove

$49,663

97112

Cloverdale

$47,000

97498

Yachats

$40,231

97520

Ashland

$46,398

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.