Marion County
West Virginia · County seat: Fairmont · Active county or equivalent
FIPS code 54049 is Marion County, West Virginia. With a population of 56,194 (2022 ACS estimate), it ranks #11 in West Virginia and #923 nationally. Marion County is part of the Fairmont, WV. The state FIPS code for West Virginia is 54. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
54049
Population
56,194
2022 ACS · #923 nationally
Density
182.0/mi²
people per sq mile
Land Area
309
sq miles
Urban/Rural
Nonmetro — urban 20K+, adjacent to metro
RUCC 4
How This FIPS Code Works
The 5-digit FIPS code 54049 is formed by combining the 2-digit state identifier 54 (West Virginia) with the 3-digit county identifier 049. Together they uniquely identify Marion County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 54049
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 54049.
Median Household Income
$59,974
ACS B19013_001E
Poverty Rate
14.9%
ACS B17001 (below poverty level)
Median Age
40.3
ACS B01002_001E
Metropolitan Area
Adjacent Counties (4)
Counties that share a border with Marion County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 54049.
Federal Datasets Using Code 54049
FIPS code 54049 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 54049 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:049",
"in": "state:54",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Marion County, West Virginia, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '54049';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '54'
AND county_fips = '049';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 54049 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "54",
county = "049",
year = 2022
)ZIP Codes in Marion 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 Marion County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 26572 | 100.0% |
| 26587 | 100.0% |
| 26586 | 100.0% |
| 26574 | 100.0% |
| 26559 | 100.0% |
| 26560 | 100.0% |
| 26563 | 100.0% |
| 26576 | 100.0% |
| 26571 | 100.0% |
| 26582 | 97.6% |
| 26591 | 96.2% |
| 26554 | 87.3% |
| 26588 | 78.9% |
| 26585 | 67.1% |
| 26570 | 25.8% |
| 26448 | 5.6% |
| 26437 | 3.9% |
| 26354 | 1.8% |