53033 FipsDecoder
41035 County FIPS Code

Klamath County

Oregon · County seat: Klamath Falls · Active county or equivalent

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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

State FIPS

41

OR

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

41 035
41 = State FIPS (Oregon)
035 = County FIPS

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.

Census ACS API — Python 41035
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, ...]
SQL — filtering by county FIPS 41035
-- 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
R — tidycensus 41035
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "41",
  county    = "035",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 41 (not 41) and 035 (not 35) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

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%

Other Counties in Oregon