Lucas County area

Population and density of Lucas County

The Census Bureau estimates that 423,347 people lived in Lucas County on July 1, 2025. That ranks #182 of 3,222 county equivalents nationally and #6 of 88 in Ohio. Since the April 1, 2020 estimates base of 431,266, the population has declined by 7,919 (−1.8%), compared with +0.9% for Ohio as a whole.

With 339.7 square miles of land, that is 1,246 people per square mile (481 per km²), placing Lucas County #143 nationally for density and #5 in Ohio. The median county equivalent has 47 people per square mile; the Ohio median is 120. Put another way, there are about 0.513 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 Lucas County

11 incorporated places lie at least partly in Lucas County. Together they are home to 333,719 people (78.8%); the other 89,628 (21.2%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Toledo city, with 263,423 residents in the county. Among places with at least 1,000 residents in 2020, Whitehouse village grew fastest since then (+1.7%).

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

Metropolitan area

Lucas County is a central county of the Toledo, OH Metropolitan Statistical Area. Its 3 county equivalents have 599,376 residents on 1,362.3 square miles of land; Lucas County accounts for 24.9% of the land and 70.6% of the residents. By combined land it ranks #235 of 393 metropolitan areas, and #99 by population.

ZIP codes

30 ZIP Code Tabulation Areas have land in Lucas County; 26 of them have most of their land inside the county, and the others mainly cover neighboring areas.

434124343443445435044352243528435324353743542435474355843560435664357143604436054360643607436084360943610436114361243613436144361543616436174362043623

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 Lucas County

Lucas County shares a land border with 6 county equivalents, including 2 in Michigan. It has more land than 1 of them. The largest neighbor is Lenawee County (749.7 mi²) and the smallest is Ottawa County (254.7 mi²). Together with its neighbors, Lucas County forms a block of 3,332 mi² of land, of which it holds 10.2%.

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

Lucas 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 times as much. Ohio’s county land could hold about 120 areas the size of Lucas County.

Another way to picture it: the same land area would fill a square about 18.4 miles (29.7 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 Lucas County?

Lucas County has more land than 508 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 Lucas County at #1,758 nationally by total area, 956 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 43%, compared with a national county-equivalent median of 1.2% — 41.8 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 Lucas 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.