Pasco County area

Population and density of Pasco County

The Census Bureau estimates that 674,516 people lived in Pasco County on July 1, 2025. That ranks #104 of 3,222 county equivalents nationally and #10 of 67 in Florida. Since the April 1, 2020 estimates base of 561,909, the population has grown by 112,607 (+20%), compared with +8.9% for Florida as a whole.

With 746.7 square miles of land, that is 903 people per square mile (349 per km²), placing Pasco County #204 nationally for density and #9 in Florida. The median county equivalent has 47 people per square mile; the Florida median is 209. Put another way, there are about 0.708 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 Pasco County

6 incorporated places lie at least partly in Pasco County. Together they are home to 58,645 people (8.7%); the other 615,871 (91.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Zephyrhills city, with 22,447 residents in the county. The county seat, Dade City city, has 10,173 residents. Among places with at least 1,000 residents in 2020, Dade City city grew fastest since then (+42.4%).

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

Metropolitan area

Pasco County is a central county of the Tampa-St. Petersburg-Clearwater, FL Metropolitan Statistical Area, in the Tampa, FL metropolitan division. Its 4 county equivalents have 3,418,895 residents on 2,515.7 square miles of land; Pasco County accounts for 29.7% of the land and 19.7% of the residents. By combined land it ranks #131 of 393 metropolitan areas, and #17 by population.

ZIP codes

32 ZIP Code Tabulation Areas have land in Pasco County; 24 of them have most of their land inside the county, and the others mainly cover neighboring areas.

3352333525335403354133542335433354433545335483354933556335583355933574335763359733809338493461034637346383463934652346533465434655346673466834669346793469034691

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 Pasco County

Pasco County shares a land border with 5 county equivalents. It has more land than 3 of them. The largest neighbor is Polk County (1,798.8 mi²) and the smallest is Pinellas County (273.8 mi²). Together with its neighbors, Pasco County forms a block of 4,871.6 mi² of land, of which it holds 15.3%.

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

Pasco County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.4 times as much. Florida’s county land could hold about 72 areas the size of Pasco County.

Another way to picture it: the same land area would fill a square about 27.3 miles (44 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 Pasco County?

Pasco County has more land than 2,039 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 Pasco County at #758 nationally by total area, 425 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 26.4%, compared with a national county-equivalent median of 1.2% — 25.2 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 Pasco 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.