53033 FipsDecoder
53011 County FIPS Code

Clark County

Washington · County seat: Vancouver · Active county or equivalent

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FIPS code 53011 is Clark County, Washington. With a population of 504,091 (2022 ACS estimate), it ranks #5 in Washington and #139 nationally. Clark County is part of the Portland-Vancouver-Hillsboro, OR-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

53011

State FIPS

53

WA

Population

504,091

2022 ACS · #139 nationally

Density

801.4/mi²

people per sq mile

Land Area

629

sq miles

Urban/Rural

Metro — 1M+ population

RUCC 1

How This FIPS Code Works

53 011
53 = State FIPS (Washington)
011 = County FIPS

The 5-digit FIPS code 53011 is formed by combining the 2-digit state identifier 53 (Washington) with the 3-digit county identifier 011. Together they uniquely identify Clark County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 53011

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 53011.

Median Household Income

$90,115

ACS B19013_001E

Poverty Rate

8.9%

ACS B17001 (below poverty level)

Median Age

38.8

ACS B01002_001E

Metropolitan Area

Adjacent Counties (4)

Counties that share a border with Clark County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 53011.

Federal Datasets Using Code 53011

FIPS code 53011 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 53011 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 53011
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:011",
    "in":   "state:53",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Clark County, Washington, income, pop, ...]
SQL — filtering by county FIPS 53011
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '53011';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '53'
  AND county_fips = '011';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 53011 is WRONG for this county
R — tidycensus 53011
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "53",
  county    = "011",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 53 (not 53) and 011 (not 11) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

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

ZIP Code % in county
98686 100.0%
98604 100.0%
98606 100.0%
98607 100.0%
98629 100.0%
98642 100.0%
98660 100.0%
98661 100.0%
98662 100.0%
98663 100.0%
98664 100.0%
98665 100.0%
98683 100.0%
98684 100.0%
98685 100.0%
98675 100.0%
98682 100.0%
98601 91.1%
98671 49.6%
98674 36.7%

Other Counties in Washington