53033 FipsDecoder
30075 County FIPS Code

Powder River County

Montana · County seat: Broadus · Active county or equivalent

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FIPS code 30075 is Powder River County, Montana. With a population of 1,773 (2022 ACS estimate), it ranks #47 in Montana and #3132 nationally. The state FIPS code for Montana is 30. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.

County FIPS

30075

State FIPS

30

MT

Population

1,773

2022 ACS · #3132 nationally

Density

0.5/mi²

people per sq mile

Land Area

3,297

sq miles

Urban/Rural

Nonmetro — completely rural

RUCC 9

How This FIPS Code Works

30 075
30 = State FIPS (Montana)
075 = County FIPS

The 5-digit FIPS code 30075 is formed by combining the 2-digit state identifier 30 (Montana) with the 3-digit county identifier 075. Together they uniquely identify Powder River County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 30075

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 30075.

Median Household Income

$60,313

ACS B19013_001E

Poverty Rate

12.7%

ACS B17001 (below poverty level)

Median Age

49.9

ACS B01002_001E

Adjacent Counties (7)

Counties that share a border with Powder River County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 30075.

Federal Datasets Using Code 30075

FIPS code 30075 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 30075 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 30075
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:075",
    "in":   "state:30",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Powder River County, Montana, income, pop, ...]
SQL — filtering by county FIPS 30075
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '30075';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '30'
  AND county_fips = '075';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 30075 is WRONG for this county
R — tidycensus 30075
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "30",
  county    = "075",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 30 (not 30) and 075 (not 75) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

ZIP Codes in Powder River 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 Powder River County. Why FIPS ≠ ZIP →

ZIP Code % in county
59317 100.0%
59343 100.0%
59314 100.0%
59316 70.3%
59062 69.1%
59003 61.4%
59351 60.5%
59345 32.0%
59301 2.3%

Other Counties in Montana