Klamath County
Oregon · County seat: Klamath Falls · Active county or equivalent
FIPS code 41035 is Klamath County, Oregon. With a population of 69,506 (2022 ACS estimate), it ranks #15 in Oregon and #779 nationally. Klamath County is part of the Klamath Falls, OR. The state FIPS code for Oregon is 41. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
41035
Population
69,506
2022 ACS · #779 nationally
Density
11.7/mi²
people per sq mile
Land Area
5,941
sq miles
Urban/Rural
Nonmetro — urban 20K+, not adjacent to metro
RUCC 5
How This FIPS Code Works
The 5-digit FIPS code 41035 is formed by combining the 2-digit state identifier 41 (Oregon) with the 3-digit county identifier 035. Together they uniquely identify Klamath County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 41035
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 41035.
Median Household Income
$57,219
ACS B19013_001E
Poverty Rate
17.8%
ACS B17001 (below poverty level)
Median Age
41.1
ACS B01002_001E
Metropolitan Area
Adjacent Counties (7)
Counties that share a border with Klamath County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 41035.
Federal Datasets Using Code 41035
FIPS code 41035 appears as the county identifier in the following federal datasets. Analysts joining data across these sources use this code as the common geographic key.
Using FIPS Code 41035 in Code
Common patterns for querying federal datasets by this county's FIPS code. The leading zeros are significant — always treat FIPS codes as strings, not integers.
import requests
url = "https://api.census.gov/data/2022/acs/acs5"
params = {
"get": "NAME,B19013_001E,B01003_001E",
"for": "county:035",
"in": "state:41",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Klamath County, Oregon, income, pop, ...]
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '41035';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '41'
AND county_fips = '035';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 41035 is WRONG for this county
library(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "41",
county = "035",
year = 2022
)
ZIP Codes in Klamath County
ZIP codes do not align perfectly with county boundaries — a single ZIP code can span multiple counties, and a county can contain parts of many ZIP codes. The ratios below (from the Census 2020 ZCTA relationship file) show the land area share of each ZCTA that falls within Klamath County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 97601 | 100.0% |
| 97603 | 100.0% |
| 97604 | 100.0% |
| 97621 | 100.0% |
| 97622 | 100.0% |
| 97623 | 100.0% |
| 97624 | 100.0% |
| 97625 | 100.0% |
| 97626 | 100.0% |
| 97627 | 100.0% |
| 97632 | 100.0% |
| 97633 | 100.0% |
| 97634 | 100.0% |
| 97639 | 100.0% |
| 97733 | 100.0% |
| 97737 | 100.0% |
| 97731 | 70.8% |
| 97739 | 27.7% |