53033 FipsDecoder
49003 County FIPS Code

Box Elder County

Utah · County seat: Brigham City · Active county or equivalent

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FIPS code 49003 is Box Elder County, Utah. With a population of 58,291 (2022 ACS estimate), it ranks #8 in Utah and #896 nationally. Box Elder County is part of the Brigham City, UT-ID. The state FIPS code for Utah is 49. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.

County FIPS

49003

State FIPS

49

UT

Population

58,291

2022 ACS · #896 nationally

Density

10.2/mi²

people per sq mile

Land Area

5,746

sq miles

Urban/Rural

Nonmetro — urban 20K+, adjacent to metro

RUCC 4

How This FIPS Code Works

49 003
49 = State FIPS (Utah)
003 = County FIPS

The 5-digit FIPS code 49003 is formed by combining the 2-digit state identifier 49 (Utah) with the 3-digit county identifier 003. Together they uniquely identify Box Elder County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 49003

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 49003.

Median Household Income

$72,769

ACS B19013_001E

Poverty Rate

8.2%

ACS B17001 (below poverty level)

Median Age

33.1

ACS B01002_001E

Metropolitan Area

Adjacent Counties (7)

Counties that share a border with Box Elder County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 49003.

Federal Datasets Using Code 49003

FIPS code 49003 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 49003 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 49003
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:003",
    "in":   "state:49",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Box Elder County, Utah, income, pop, ...]
SQL — filtering by county FIPS 49003
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '49003';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '49'
  AND county_fips = '003';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 49003 is WRONG for this county
R — tidycensus 49003
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "49",
  county    = "003",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 49 (not 49) and 003 (not 3) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

ZIP Codes in Box Elder 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 Box Elder County. Why FIPS ≠ ZIP →

ZIP Code % in county
84340 100.0%
84336 100.0%
84337 100.0%
84301 100.0%
84302 100.0%
84306 100.0%
84307 100.0%
84309 100.0%
84311 100.0%
84312 100.0%
84313 100.0%
84314 100.0%
84316 100.0%
84324 100.0%
84329 100.0%
84330 100.0%
84331 100.0%
84334 100.0%
83342 13.3%
84029 0.4%

Other Counties in Utah