County outline
Where Tooele County is located
Area breakdown
Land accounts for 96.6% of Tooele County’s measured area and water for 3.4%. Its combined area converts to 18,870.7 square kilometers or approximately 4,663,050 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 7,040.271 | 18,234.218 | 4,505,773.4 |
| Water | 245.745 | 636.477 | 157,276.8 |
| Total | 7,286.016 | 18,870.695 | 4,663,050.2 |
How Tooele County compares
By original Census land area, Tooele County ranks #2 of 29 in Utah and #43 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 2.9 times the Utah county-equivalent median of 2,427.6 square miles. It accounts for 8.5% of the combined county land area in the state.
See the complete Utah ranking · What counts as a county equivalent?
Population and density of Tooele County
The Census Bureau estimates that 87,461 people lived in Tooele County on July 1, 2025. That ranks #689 of 3,222 county equivalents nationally and #7 of 29 in Utah. Since the April 1, 2020 estimates base of 72,703, the population has grown by 14,758 (+20.3%), compared with +8.2% for Utah as a whole.
With 7,040.3 square miles of land, that is 12 people per square mile (4.8 per km²), placing Tooele County #2,562 nationally for density and #13 in Utah. The median county equivalent has 47 people per square mile; the Utah median is 11. Put another way, there are about 52 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 73,349 | 76,782 | 80,029 | 82,266 | 84,828 | 87,461 |
| Change | — | +3,433 | +3,247 | +2,237 | +2,562 | +2,633 |
U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.
Cities and towns in Tooele County
8 incorporated places lie at least partly in Tooele County. Together they are home to 68,287 people (78.1%); the other 19,174 (21.9%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Tooele city, with 42,270 residents in the county. By land, Grantsville city is the largest at 40.8 mi². Among places with at least 1,000 residents in 2020, Grantsville city grew fastest since then (+30.4%).
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Tooele cityCounty seat | 42,270 | +18.3% | 24.2 |
| Grantsville city | 16,472 | +30.4% | 40.8 |
| Erda city | 4,056 | +15.3% | 40.1 |
| Lake Point city | 2,947 | +27.6% | 4.574 |
| Wendover city | 1,135 | +1.3% | 8.928 |
| Stockton town | 621 | +0.3% | 1.684 |
| Rush Valley town | 489 | +12.9% | 18.1 |
| Vernon town | 297 | +19.3% | 8.06 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Tooele County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Tooele County is an outlying county of the Salt Lake City-Murray, UT Metropolitan Statistical Area. Its 2 county equivalents have 1,308,377 residents on 7,793 square miles of land; Tooele County accounts for 90.3% of the land and 6.7% of the residents. By combined land it ranks #21 of 393 metropolitan areas, and #47 by population. It belongs to the Salt Lake City-Provo-Orem, UT-ID Combined Statistical Area.
| County equivalent | Population 2025 | Land mi² |
|---|---|---|
| Salt Lake County | 1,220,916 | 752.7 |
| Tooele County | 87,461 | 7,040.3 |
ZIP codes
8 ZIP Code Tabulation Areas have land in Tooele County, and each lies mostly inside the county.
8402284029840348406984071840748408084083
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Tooele County
Tooele County shares a land border with 7 county equivalents, including 2 in Nevada. It has more land than 5 of them. The largest neighbor is Elko County (17,173.3 mi²) and the smallest is Davis County (324.9 mi²). Together with its neighbors, Tooele County forms a block of 45,355.4 mi² of land, of which it holds 15.5%.
| Bordering county equivalent | Land mi² | Size vs. Tooele | Compare |
|---|---|---|---|
| Elko CountyNevada | 17,173.3 | 2.4× larger | Compare |
| White Pine CountyNevada | 8,886.7 | 1.3× larger | Compare |
| Box Elder County | 5,781.3 | 1.2× smaller | Compare |
| Juab County | 3,391.8 | 2.1× smaller | Compare |
| Utah County | 2,004.5 | 3.5× smaller | Compare |
| Salt Lake County | 752.7 | 9.4× smaller | Compare |
| Davis County | 324.9 | 21.7× smaller | Compare |
How big is Tooele County compared with U.S. states?
Tooele County has more land than 4 of the 50 states. It is about 1.1 times the land area of Hawaii (6,422.6 mi²), while New Jersey, the next larger state, has 1 times as much land (7,355 mi²). Utah’s county land could hold about 12 areas the size of Tooele County.
Another way to picture it: the same land area would fill a square about 83.9 miles (135 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.
State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.
What stands out about Tooele County?
Tooele County has more land than 3,179 of the other 3,221 county equivalents in the dataset.
A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.
Does including water change its rank?
Using land plus water places Tooele County at #48 nationally by total area, 5 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.
Its water share is 3.4%, compared with a national county-equivalent median of 1.2% — 2.2 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.
Closest positions in the national land ranking
These entries sit immediately beside Tooele County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #42 | Riverside County, California | 7,209 | Compare |
| #43 | Tooele County, Utah | 7,040.3 | This county |
| #44 | Aleutians East Borough, Alaska | 6,985.2 | Compare |
Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.
Representative coordinates
The Census internal point is 40.467753, -113.123979. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.
Source and precision
U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 18,234,216,155 m²; AWATER: 636,477,482 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Tooele County?
Tooele County, Utah has 7,040.3 square miles (18,234.2 km²) of land and 245.7 square miles of water, for a total area of 7,286 square miles. It ranks #43 of 3,222 U.S. county equivalents by land area.
Is Tooele County the largest county in Utah?
No. Tooele County ranks #2 of 29 in Utah by land area. The largest is San Juan County, with 7,823.7 square miles of land.
What counties border Tooele County?
Tooele County shares a land border with Juab County, Box Elder County, Elko County, Nevada, Utah County, Davis County, Salt Lake County, and White Pine County, Nevada.
What is the population of Tooele County?
The Census Bureau estimates Tooele County had 87,461 residents on July 1, 2025, ranking #689 of 3,222 county equivalents. That is 12 people per square mile of land.
What is the county seat of Tooele County?
The county seat of Tooele County is Tooele.
What cities and towns are in Tooele County?
Tooele County has 8 incorporated places. The most populous five are Tooele city, Grantsville city, Erda city, Lake Point city, and Wendover city; 19,174 residents live outside any incorporated place.
Is Tooele County part of a metropolitan area?
Yes. It is an outlying county of the Salt Lake City-Murray, UT Metropolitan Statistical Area, which has 2 county equivalents and 1,308,377 residents.
How many ZIP codes are in Tooele County?
8 ZIP Code Tabulation Areas have land in Tooele County, and 8 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Tooele County compare with U.S. states?
It has more land than 4 of the 50 states, including Hawaii (6,422.6 square miles of land).
How many acres of land are in Tooele County?
The land measurement converts to approximately 4,505,773 acres. Including water, total area is approximately 4,663,050 acres. One square mile equals 640 acres.
Why might another source show a different area?
Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.
Can this establish a property boundary?
No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.