53033 FipsDecoder
49035 County FIPS Code

Salt Lake County

Utah · County seat: Salt Lake City · Active county or equivalent

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FIPS code 49035 is Salt Lake County, Utah. With a population of 1,180,643 (2022 ACS estimate), it ranks #1 in Utah and #37 nationally. Salt Lake County is part of the Salt Lake City-Murray, 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

49035

State FIPS

49

UT

Population

1,180,643

2022 ACS · #37 nationally

Density

1,590.6/mi²

people per sq mile

Land Area

742

sq miles

Urban/Rural

Metro — 1M+ population

RUCC 1

How This FIPS Code Works

49 035
49 = State FIPS (Utah)
035 = County FIPS

The 5-digit FIPS code 49035 is formed by combining the 2-digit state identifier 49 (Utah) with the 3-digit county identifier 035. Together they uniquely identify Salt Lake County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 49035

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 49035.

Median Household Income

$90,011

ACS B19013_001E

Poverty Rate

8.1%

ACS B17001 (below poverty level)

Median Age

33.4

ACS B01002_001E

Metropolitan Area

Adjacent Counties (6)

Counties that share a border with Salt Lake County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 49035.

Federal Datasets Using Code 49035

FIPS code 49035 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 49035 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 49035
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:035",
    "in":   "state:49",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Salt Lake County, Utah, income, pop, ...]
SQL — filtering by county FIPS 49035
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '49035';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '49'
  AND county_fips = '035';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 49035 is WRONG for this county
R — tidycensus 49035
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "49",
  county    = "035",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 49 (not 49) and 035 (not 35) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

ZIP Codes in Salt Lake 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 Salt Lake County. Why FIPS ≠ ZIP →

ZIP Code % in county
84180 100.0%
84009 100.0%
84006 100.0%
84044 100.0%
84047 100.0%
84065 100.0%
84070 100.0%
84081 100.0%
84084 100.0%
84088 100.0%
84092 100.0%
84093 100.0%
84094 100.0%
84095 100.0%
84096 100.0%
84101 100.0%
84102 100.0%
84103 100.0%
84104 100.0%
84105 100.0%
84106 100.0%
84107 100.0%
84108 100.0%
84109 100.0%
84111 100.0%
84112 100.0%
84113 100.0%
84114 100.0%
84115 100.0%
84116 100.0%

Showing top 30 of 42 ZIP codes by residential address share.

Other Counties in Utah