Davis County area

Population and density of Davis County

The Census Bureau estimates that 381,227 people lived in Davis County on July 1, 2025. That ranks #204 of 3,222 county equivalents nationally and #3 of 29 in Utah. Since the April 1, 2020 estimates base of 362,676, the population has grown by 18,551 (+5.1%), compared with +8.2% for Utah as a whole.

With 324.9 square miles of land, that is 1,173 people per square mile (453 per km²), placing Davis County #154 nationally for density and #2 in Utah. The median county equivalent has 47 people per square mile; the Utah median is 11. Put another way, there are about 0.545 acres of land per resident.

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 Davis County

15 incorporated places lie at least partly in Davis County. Together they are home to 378,924 people (99.4%); the other 2,303 (0.6%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Layton city, with 85,308 residents in the county. The county seat, Farmington city, has 26,266 residents. Among places with at least 1,000 residents in 2020, Syracuse city grew fastest since then (+24.2%).

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Davis County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Davis County is a central county of the Ogden, UT Metropolitan Statistical Area. Its 3 county equivalents have 672,784 residents on 1,545.1 square miles of land; Davis County accounts for 21% of the land and 56.7% of the residents. By combined land it ranks #216 of 393 metropolitan areas, and #89 by population. It belongs to the Salt Lake City-Provo-Orem, UT-ID Combined Statistical Area.

ZIP codes

13 ZIP Code Tabulation Areas have land in Davis County; 11 of them have most of their land inside the county, and the others mainly cover neighboring areas.

84010840148401584025840378404084041840548405684075840878431584405

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Davis County

Davis County shares a land border with 4 county equivalents. Each of them has more land than Davis County. The largest neighbor is Tooele County (7,040.3 mi²) and the smallest is Morgan County (609.2 mi²). Together with its neighbors, Davis County forms a block of 9,338.1 mi² of land, of which it holds 3.5%.

How big is Davis County compared with U.S. states?

Davis County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 3.2 times as much. Utah’s county land could hold about 254 areas the size of Davis County.

Another way to picture it: the same land area would fill a square about 18 miles (29 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 Davis County?

Davis County has more land than 471 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 Davis County at #1,627 nationally by total area, 1,124 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 48.9%, compared with a national county-equivalent median of 1.2% — 47.7 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 Davis County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

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.