Ashtabula County area

Population and density of Ashtabula County

The Census Bureau estimates that 96,713 people lived in Ashtabula County on July 1, 2025. That ranks #652 of 3,222 county equivalents nationally and #28 of 88 in Ohio. Since the April 1, 2020 estimates base of 97,571, the population has declined by 858 (−0.9%), compared with +0.9% for Ohio as a whole.

With 702.4 square miles of land, that is 138 people per square mile (53 per km²), placing Ashtabula County #815 nationally for density and #37 in Ohio. The median county equivalent has 47 people per square mile; the Ohio median is 120. Put another way, there are about 4.6 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 Ashtabula County

10 incorporated places lie at least partly in Ashtabula County. Together they are home to 46,973 people (48.6%); the other 49,740 (51.4%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Ashtabula city, with 17,474 residents in the county. The county seat, Jefferson village, has 3,148 residents. By land, Conneaut city is the largest at 26.3 mi². Among places with at least 1,000 residents in 2020, Roaming Shores village grew fastest since then (+1.2%).

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

Metropolitan area

Ashtabula 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; Ashtabula County accounts for 26% of the land and 4.5% 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

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

4400344004440104403044032440414404744048440574406244064440684407644082440844408544086440934409944428

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 Ashtabula County

Ashtabula County shares a land border with 5 county equivalents, including 2 in Pennsylvania. It has more land than 3 of them. The largest neighbor is Crawford County (1,012.4 mi²) and the smallest is Lake County (229.4 mi²). Together with its neighbors, Ashtabula County forms a block of 3,761.2 mi² of land, of which it holds 18.7%.

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

Ashtabula County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.5 times as much. Ohio’s county land could hold about 58 areas the size of Ashtabula County.

Another way to picture it: the same land area would fill a square about 26.5 miles (42.7 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 Ashtabula County?

Ashtabula County has more land than 1,901 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 Ashtabula County at #501 nationally by total area, 820 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 48.7%, compared with a national county-equivalent median of 1.2% — 47.5 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 Ashtabula 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.