53033 FipsDecoder
53003 County FIPS Code

Asotin County

Washington · County seat: Asotin · Active county or equivalent

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FIPS code 53003 is Asotin County, Washington. With a population of 22,370 (2022 ACS estimate), it ranks #30 in Washington and #1746 nationally. Asotin County is part of the Lewiston, ID-WA. The state FIPS code for Washington is 53. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.

County FIPS

53003

State FIPS

53

WA

Population

22,370

2022 ACS · #1746 nationally

Density

35.2/mi²

people per sq mile

Land Area

636

sq miles

Urban/Rural

Metro — under 250K population

RUCC 3

How This FIPS Code Works

53 003
53 = State FIPS (Washington)
003 = County FIPS

The 5-digit FIPS code 53003 is formed by combining the 2-digit state identifier 53 (Washington) with the 3-digit county identifier 003. Together they uniquely identify Asotin County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 53003

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 53003.

Median Household Income

$63,724

ACS B19013_001E

Poverty Rate

16.1%

ACS B17001 (below poverty level)

Median Age

45.4

ACS B01002_001E

Metropolitan Area

Adjacent Counties (4)

Counties that share a border with Asotin County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 53003.

Federal Datasets Using Code 53003

FIPS code 53003 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 53003 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 53003
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:003",
    "in":   "state:53",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Asotin County, Washington, income, pop, ...]
SQL — filtering by county FIPS 53003
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '53003';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '53'
  AND county_fips = '003';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 53003 is WRONG for this county
R — tidycensus 53003
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "53",
  county    = "003",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 53 (not 53) and 003 (not 3) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

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

ZIP Code % in county
99401 100.0%
99402 100.0%
99403 79.9%

Other Counties in Washington