Lorain County area

Population and density of Lorain County

The Census Bureau estimates that 323,219 people lived in Lorain County on July 1, 2025. That ranks #233 of 3,222 county equivalents nationally and #9 of 88 in Ohio. Since the April 1, 2020 estimates base of 312,980, the population has grown by 10,239 (+3.3%), compared with +0.9% for Ohio as a whole.

With 490.5 square miles of land, that is 659 people per square mile (254 per km²), placing Lorain County #268 nationally for density and #9 in Ohio. The median county equivalent has 47 people per square mile; the Ohio median is 120. Put another way, there are about 0.971 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 Lorain County

16 incorporated places lie at least partly in Lorain County. Together they are home to 265,655 people (82.2%); the other 57,564 (17.8%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Lorain city, with 65,366 residents in the county. The county seat, Elyria city, has 53,634 residents. Among places with at least 1,000 residents in 2020, Sheffield village grew fastest since then (+15%).

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

Metropolitan area

Lorain County is an outlying county of the Cleveland, OH Metropolitan Statistical Area. Its 6 county equivalents have 2,165,775 residents on 2,701.5 square miles of land; Lorain County accounts for 18.2% of the land and 14.9% of the residents. By combined land it ranks #115 of 393 metropolitan areas, and #35 by population. It belongs to the Cleveland-Akron-Canton, OH Combined Statistical Area.

ZIP codes

24 ZIP Code Tabulation Areas have land in Lorain County; 15 of them have most of their land inside the county, and the others mainly cover neighboring areas.

440014401144012440284403544039440444404944050440524405344054440554407444089440904425344256442754428044851448594488044889

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 Lorain County

Lorain County shares a land border with 5 county equivalents. It has more land than 4 of them. The largest neighbor is Huron County (492.2 mi²) and the smallest is Erie County (251.3 mi²). Together with its neighbors, Lorain County forms a block of 2,535.7 mi² of land, of which it holds 19.3%.

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

Lorain County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.1 times as much. Ohio’s county land could hold about 83 areas the size of Lorain County.

Another way to picture it: the same land area would fill a square about 22.1 miles (35.6 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 Lorain County?

Lorain County has more land than 1,100 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 Lorain County at #894 nationally by total area, 1,228 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 46.8%, compared with a national county-equivalent median of 1.2% — 45.7 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 Lorain 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.