Mineral County
West Virginia · County seat: Keyser · Active county or equivalent
FIPS code 54057 is Mineral County, West Virginia. With a population of 26,957 (2022 ACS estimate), it ranks #22 in West Virginia and #1565 nationally. Mineral County is part of the Cumberland, MD-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
54057
Population
26,957
2022 ACS · #1565 nationally
Density
82.2/mi²
people per sq mile
Land Area
328
sq miles
Urban/Rural
Nonmetro — urban 2.5K–19.9K, not adjacent to metro
RUCC 7
How This FIPS Code Works
The 5-digit FIPS code 54057 is formed by combining the 2-digit state identifier 54 (West Virginia) with the 3-digit county identifier 057. Together they uniquely identify Mineral County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 54057
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 54057.
Median Household Income
$64,728
ACS B19013_001E
Poverty Rate
13.9%
ACS B17001 (below poverty level)
Median Age
44.6
ACS B01002_001E
Metropolitan Area
Adjacent Counties (5)
Counties that share a border with Mineral County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 54057.
Federal Datasets Using Code 54057
FIPS code 54057 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 54057 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:057",
"in": "state:54",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Mineral County, West Virginia, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '54057';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '54'
AND county_fips = '057';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 54057 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "54",
county = "057",
year = 2022
)ZIP Codes in Mineral 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 Mineral County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 26753 | 100.0% |
| 26719 | 100.0% |
| 26767 | 100.0% |
| 26750 | 100.0% |
| 26726 | 85.7% |
| 26717 | 82.3% |
| 26710 | 74.4% |
| 26743 | 50.6% |
| 26763 | 34.7% |
| 26852 | 11.6% |