Campbell County area

Population and density of Campbell County

The Census Bureau estimates that 95,441 people lived in Campbell County on July 1, 2025. That ranks #655 of 3,222 county equivalents nationally and #9 of 120 in Kentucky. Since the April 1, 2020 estimates base of 93,081, the population has grown by 2,360 (+2.5%), compared with +2.2% for Kentucky as a whole.

With 151.3 square miles of land, that is 631 people per square mile (244 per km²), placing Campbell County #277 nationally for density and #4 in Kentucky. The median county equivalent has 47 people per square mile; the Kentucky median is 59. Put another way, there are about 1 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 Campbell County

15 incorporated places lie at least partly in Campbell County. Together they are home to 76,759 people (80.4%); the other 18,682 (19.6%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Fort Thomas city, with 17,142 residents in the county. The county seat, Newport city, has 13,998 residents. By land, Alexandria city is the largest at 6.923 mi². Among places with at least 1,000 residents in 2020, Cold Spring city grew fastest since then (+6.3%).

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

Metropolitan area

Campbell County is a central county of the Cincinnati, OH-KY-IN Metropolitan Statistical Area. Its 15 county equivalents have 2,312,858 residents on 4,385.2 square miles of land; Campbell County accounts for 3.5% of the land and 4.1% of the residents. By combined land it ranks #60 of 393 metropolitan areas, and #30 by population. It belongs to the Cincinnati-Wilmington, OH-KY-IN Combined Statistical Area.

ZIP codes

10 ZIP Code Tabulation Areas have land in Campbell County; 9 of them have most of their land inside the county, and the others mainly cover neighboring areas.

41001410064100741059410714107341074410754107641085

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 Campbell County

Campbell County shares a land border with 4 county equivalents, including 2 in Ohio. Each of them has more land than Campbell County. The largest neighbor is Clermont County (452.6 mi²) and the smallest is Kenton County (160.4 mi²). Together with its neighbors, Campbell County forms a block of 1,446.9 mi² of land, of which it holds 10.5%.

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

Campbell County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 6.8 times as much. Kentucky’s county land could hold about 261 areas the size of Campbell County.

Another way to picture it: the same land area would fill a square about 12.3 miles (19.8 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 Campbell County?

Campbell County has more land than 164 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 Campbell County at #3,074 nationally by total area, 16 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 5.1%, compared with a national county-equivalent median of 1.2% — 3.9 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 Campbell 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.