Scioto County, Ohio
County seat: Portsmouth · Population 71,365 (2025) · 610 sq mi
Scioto County is the 36th most populous of Ohio's 88 counties, with 71,365 people (2025 estimate). Its county seat is Portsmouth. The map shows its 5 cities and towns and the 6 neighboring counties.
Scioto County facts
- County seat
- Portsmouth
- Population (2025 estimate)
- 71,365 −3.6% since 2020
- Land area
- 610 sq mi 8th largest of 88
- Water area
- 6 sq mi
- Population density
- 117 per sq mi
- Established
- 1803
- Named after
- Scioto River river in Ohio
- Largest city
- Portsmouth 17,282
- Median household income
- $50,609
- Cities and towns
- 5 plus 10 CDPs
- ZIP codes
- 22
- Time zone
- Eastern
- FIPS code
- 39145
Cities and towns in Scioto County
Scioto County has 5 incorporated cities, towns and villages. Populations count the people living inside Scioto County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Portsmouth (county seat) | City | 17,282 | |
| New Boston | Village | 2,206 | |
| South Webster | Village | 635 | |
| Rarden | Village | 138 | |
| Otway | Village | 88 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Wheelersburg | 6,313 | |
| West Portsmouth | 2,605 | |
| Rosemount | 2,199 | |
| Franklin Furnace | 1,594 | |
| Lucasville | 1,527 | |
| Clarktown | 802 | |
| Sciotodale | 794 | |
| McDermott | 423 | |
| Minford | 379 | |
| Friendship | 353 |
ZIP codes in Scioto County
22 ZIP codes reach into Scioto County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 45613 also Pike and Jackson counties
- 45616 also Adams County
- 45629 also Lawrence County
- 45630
- 45636
- 45638 also Lawrence County
- 45648 also Pike County
- 45652
- 45653 also Jackson County
- 45656 also Jackson, Gallia and Lawrence counties
- 45657 also Adams and Pike counties
- 45659 also Lawrence County
- 45660 also Adams, Pike and Highland counties
- 45661 also Pike County
- 45662
- 45663
- 45671 also Pike and Adams counties
- 45677
- 45682 also Lawrence and Jackson counties
- 45684 also Adams County
- 45694
- 45699
Population of Scioto County, 2020–2025
Scioto County shrank by 2,639 people (−3.6%) between April 2020 and July 2025: 2,399 more deaths than births and a net loss of 230 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 73,849 |
| 2021 | 72,932 |
| 2022 | 72,209 |
| 2023 | 72,047 |
| 2024 | 71,824 |
| 2025 | 71,365 |
Neighboring counties
- Pike County north · 27,061 people
- Lawrence County southeast · 55,710 people
- Adams County west · 27,865 people
- Greenup County, Kentucky south · 35,213 people
- Lewis County, Kentucky southwest · 12,901 people
- Jackson County northeast · 32,817 people
Printable Scioto County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (100 KB)
- PNG (2400 px) (89 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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