• county
  • FIPS 49035
  • Largest town: Salt Lake City

Salt Lake County, Utah

Salt Lake County had 1,216,274 residents in the Census Vintage 2024 estimate, on 752.9 square miles of land. It is the most populous of Utah's 29 county-equivalents.

Population
1,216,274
#1 of 29 in Utah · #39 in US
Area
752.9 sq mi
#25 of 29 in Utah · #1,169 in US
Density
1,616 / sq mi
#1 of 29 in Utah · #99 in US
Median household income
$94,013
#7 of 29 in Utah · #194 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Salt Lake County within Utah. Pin: Salt Lake City.

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Tools and pages that start from Salt Lake County

Salt Lake County population, land area and income

Salt Lake County had 1,216,274 residents in the Census Vintage 2024 estimate, on 752.9 square miles of land. It is the most populous of Utah's 29 county-equivalents. That works out to 1,615.6 people per square mile, 16.8 times the US average of 96.3, and in the top tenth nationally.

The median county-equivalent in Utah has 20,803 residents, so Salt Lake County is 58.5 times that size.

Its SAIPE 2023 median household income of $94,013 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

1,216,274

3144th1st

39th of 3,144 (US)

Land area

753 sq mi

3144th1st

1169th of 3,144 (US)

Density

1,615.6 / sq mi

3144th1st

99th of 3,144 (US)

Median household income

$94,013

3143rd1st

194th of 3,143 (US)

Rank within Utah (29)

Population

1,216,274

29th1st

1st of 29 (UT)

Land area

753 sq mi

29th1st

25th of 29 (UT)

Density

1,615.6 / sq mi

29th1st

1st of 29 (UT)

Median household income

$94,013

29th1st

7th of 29 (UT)

How Salt Lake County's population changed since 2020

Salt Lake County gained 29,246 residents between the July 2020 and July 2024 estimates, a rise of 2.5%. That ranks 24th of 29 in Utah for growth. The median Utah county changed by +5.7%, and the state as a whole by +6.7%.

Since the April 2020 estimates base, Salt Lake County recorded 62,936 births and 33,341 deaths, a natural change of +29,595. Net international migration added +44,772 and net domestic migration, people moving to or from other US counties, came to -43,731. The largest single component was international migration, which added 44,772 people.

1.19M20201.19M20211.19M20221.20M20231.22M2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
62,936
Deaths
33,341
Net international migration
+44,772
Net domestic migration
-43,731
Change, July 2023 to July 2024
+15,730

Where Salt Lake County is

The Census internal point of Salt Lake County is at 40.667900, -111.924200. It sits in UTM zone 12N. The map shades Utah's 29 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Salt Lake County outlined. Dots are towns of 1,000+ people with residents in it.

Iron County: +14.3%Rich County: +9.9%Summit County: +1.5%San Juan County: +0.6%Duchesne County: +6.0%Uintah County: +7.4%Grand County: +1.1%Box Elder County: +10.7%Cache County: +8.9%Garfield County: +3.8%Salt Lake County: +2.5%Utah County: +12.6%Sanpete County: +7.7%Wayne County: +4.1%Piute County: +6.7%Emery County: +3.2%Juab County: +12.4%Sevier County: +4.4%Wasatch County: +8.0%Daggett County: +0.4%Kane County: +10.9%Tooele County: +15.2%Morgan County: +5.7%Weber County: +5.0%Davis County: +4.0%Washington County: +14.2%Beaver County: +4.7%Millard County: +4.0%Carbon County: +0.6%
Change 2020 to 2024
  1. < +2.5%
  2. < +4.4%
  3. < +6.7%
  4. < +10.7%
  5. ≥ +10.7%
no data

Orange pin: Salt Lake County internal point. Dark pin: Salt Lake City.

Internal point

Decimal
40.667900, -111.924200
DMS
40°40'4.44"N 111°55'27.12"W
UTM
12N 421884.0E 4502302.5N
Geohash
9x0rm5779
Plus code
85GCM39G+58

Towns in Salt Lake County

20 incorporated places of 1,000+ people have residents in Salt Lake County, 1,203,639 people together, or 99% of the county. Each figure counts only the part of the town inside Salt Lake County; towns marked "part" extend into another county. The largest is Salt Lake City with 217,783.

  1. 01Salt Lake City217,783
  2. 02West Valley City138,144
  3. 03West Jordan116,688
  4. 04Sandy92,840
  5. 05South Jordan86,156
  6. 06Millcreek64,217
  7. 07Herriman62,352
  8. 08Taylorsville57,819
  9. 09Murray50,817
  10. 10Riverton46,680
  11. 11Draper (part)46,676
  12. 12Kearns39,398
  13. 13Midvale36,219
  14. 14Cottonwood Heights32,437
  15. 15Magna31,381
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Salt Lake County

The Census 2024 county adjacency file lists 6 neighbors for Salt Lake County. The most populous is Utah County, UT, with 747,234 residents. Distances run between Census internal points in a straight line.

Distance to Salt Lake City and the nearest big city

Salt Lake City is 7.8 miles NNE of Salt Lake County's internal point in a straight line. The nearest place of 100,000 or more is West Valley City, UT (population 138,144), 4.8 miles away. The nearest place of 10,000 or more is Taylorsville, UT (population 57,819), 1.5 miles away.

Salt Lake County FIPS code

The FIPS code of Salt Lake County is 49035: state code 49 for Utah plus county code 035. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $94,013.

Questions people ask

What is the population of Salt Lake County, Utah?

The Census Vintage 2024 estimate for July 1, 2024 is 1,216,274. That is up 29,246 people (2.5%) from the July 2020 estimate of 1,187,028.

What is the FIPS code of Salt Lake County?

49035. The first two digits (49) are Utah; the last three (035) identify the county.

What is the largest town in Salt Lake County?

Salt Lake City, with 217,783 residents inside Salt Lake County in 2024.

Which counties border Salt Lake County?

6 county-equivalents border it in the Census 2024 adjacency file: Utah County, UT; Davis County, UT; Tooele County, UT; Summit County, UT; Wasatch County, UT; Morgan County, UT.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.