53033 FipsDecoder
56027 County FIPS Code

Niobrara County

Wyoming · County seat: Lusk · Active county or equivalent

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FIPS code 56027 is Niobrara County, Wyoming. With a population of 2,460 (2022 ACS estimate), it ranks #23 in Wyoming and #3071 nationally. The state FIPS code for Wyoming is 56. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.

County FIPS

56027

State FIPS

56

WY

Population

2,460

2022 ACS · #3071 nationally

Density

0.9/mi²

people per sq mile

Land Area

2,626

sq miles

Urban/Rural

Nonmetro — completely rural

RUCC 9

How This FIPS Code Works

56 027
56 = State FIPS (Wyoming)
027 = County FIPS

The 5-digit FIPS code 56027 is formed by combining the 2-digit state identifier 56 (Wyoming) with the 3-digit county identifier 027. Together they uniquely identify Niobrara County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 56027

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 56027.

Median Household Income

$54,375

ACS B19013_001E

Poverty Rate

18.3%

ACS B17001 (below poverty level)

Median Age

43.6

ACS B01002_001E

Adjacent Counties (7)

Counties that share a border with Niobrara County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 56027.

Federal Datasets Using Code 56027

FIPS code 56027 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 56027 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 56027
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:027",
    "in":   "state:56",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Niobrara County, Wyoming, income, pop, ...]
SQL — filtering by county FIPS 56027
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '56027';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '56'
  AND county_fips = '027';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 56027 is WRONG for this county
R — tidycensus 56027
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "56",
  county    = "027",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 56 (not 56) and 027 (not 27) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

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

ZIP Code % in county
82227 100.0%
82222 100.0%
82225 94.3%
82242 87.4%
82224 48.1%
82701 9.4%
82633 1.0%

Other Counties in Wyoming