53033 FipsDecoder
49057 County FIPS Code

Weber County

Utah · County seat: Ogden · Active county or equivalent

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FIPS code 49057 is Weber County, Utah. With a population of 262,960 (2022 ACS estimate), it ranks #4 in Utah and #264 nationally. Weber County is part of the Ogden, UT. 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

49057

State FIPS

49

UT

Population

262,960

2022 ACS · #264 nationally

Density

456.5/mi²

people per sq mile

Land Area

576

sq miles

Urban/Rural

Metro — 250K–1M population

RUCC 2

How This FIPS Code Works

49 057
49 = State FIPS (Utah)
057 = County FIPS

The 5-digit FIPS code 49057 is formed by combining the 2-digit state identifier 49 (Utah) with the 3-digit county identifier 057. Together they uniquely identify Weber County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 49057

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 49057.

Median Household Income

$82,291

ACS B19013_001E

Poverty Rate

7.6%

ACS B17001 (below poverty level)

Median Age

33.2

ACS B01002_001E

Metropolitan Area

Adjacent Counties (6)

Counties that share a border with Weber County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 49057.

Federal Datasets Using Code 49057

FIPS code 49057 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 49057 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 49057
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:057",
    "in":   "state:49",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Weber County, Utah, income, pop, ...]
SQL — filtering by county FIPS 49057
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '49057';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '49'
  AND county_fips = '057';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 49057 is WRONG for this county
R — tidycensus 49057
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "49",
  county    = "057",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 49 (not 49) and 057 (not 57) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

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

ZIP Code % in county
84414 100.0%
84310 100.0%
84408 100.0%
84067 100.0%
84317 100.0%
84401 100.0%
84403 100.0%
84404 100.0%
84315 77.7%
84405 66.3%

Other Counties in Utah