53033 FipsDecoder
41045 County FIPS Code

Malheur County

Oregon · County seat: Vale · Active county or equivalent

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FIPS code 41045 is Malheur County, Oregon. With a population of 31,538 (2022 ACS estimate), it ranks #20 in Oregon and #1415 nationally. Malheur County is part of the Ontario, OR-ID. 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

41045

State FIPS

41

OR

Population

31,538

2022 ACS · #1415 nationally

Density

3.2/mi²

people per sq mile

Land Area

9,888

sq miles

Urban/Rural

Nonmetro — urban 2.5K–19.9K, adjacent to metro

RUCC 6

How This FIPS Code Works

41 045
41 = State FIPS (Oregon)
045 = County FIPS

The 5-digit FIPS code 41045 is formed by combining the 2-digit state identifier 41 (Oregon) with the 3-digit county identifier 045. Together they uniquely identify Malheur County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 41045

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 41045.

Median Household Income

$48,371

ACS B19013_001E

Poverty Rate

18.9%

ACS B17001 (below poverty level)

Median Age

35.9

ACS B01002_001E

Metropolitan Area

Adjacent Counties (8)

Counties that share a border with Malheur County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 41045.

Federal Datasets Using Code 41045

FIPS code 41045 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 41045 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 41045
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:045",
    "in":   "state:41",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Malheur County, Oregon, income, pop, ...]
SQL — filtering by county FIPS 41045
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '41045';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '41'
  AND county_fips = '045';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 41045 is WRONG for this county
R — tidycensus 41045
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "41",
  county    = "045",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 41 (not 41) and 045 (not 45) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

ZIP Codes in Malheur 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 Malheur County. Why FIPS ≠ ZIP →

ZIP Code % in county
97920 100.0%
97901 100.0%
97902 100.0%
97903 100.0%
97906 100.0%
97911 100.0%
97914 100.0%
97917 100.0%
97918 100.0%
97908 100.0%
97909 100.0%
97913 99.9%
97910 92.4%
89421 61.1%
97907 26.4%

Other Counties in Oregon