Washington County, Ohio
Washington County, Ohio, has 58,389 residents (July 2025 estimate). Its county seat is Marietta. It uses Eastern Time and covers 632 sq mi (1,637 km²) of land.
- Resident population, July 2025
- 58,389
- Land area
- 632 sq mi (1,637 km²)
- County seat or government
- Marietta
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $63,603 ± $3,544
- Median home value
- $185,600 ± $8,371
- Median rent, with utilities
- $852 ± $33
- Homes lived in by their owners
- 75.4% ± 1.7 points
- County type
- County
- Metro or micro area
- Marietta, OH micro areaCentral county
- Water area
- 7.98 sq mi (20.7 km²)
- State
- Ohio
- County code (FIPS)
- 39167
- Coordinates (central point)
- 39.450676, -81.490636
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Washington County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Eastern TimeAmerica/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 4575026,420 people
- 457149,503 people
- 457423,752 people
- 457233,682 people
- 457863,187 people
- 457843,002 people
- 437872,524 people
- 457672,428 people
- 457442,179 people
- 457292,121 people
- 457152,006 people
- 457681,503 people
All 21
21 ZIP Code areas overlap Washington County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Washington County, largest first
- Muskingum Township4,316 people
- Marietta Township4,223 people
- Warren Township3,889 people
- Belpre Township3,862 people
- Waterford Township3,516 people
- Barlow Township2,549 people
- Dunham Township2,535 people
- Newport Township2,171 people
- Decatur Township1,439 people
- Grandview Township1,282 people
- Adams Township1,271 people
- Watertown Township1,224 people
All 22
- Lawrence Township1,042 people
- Salem Township1,035 people
- Palmer Township996 people
- Fairfield Township983 people
- Fearing Township973 people
- Wesley Township661 people
- Ludlow Township471 people
- Aurelius Township356 people
- Liberty Township168 people
- Independence Township159 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Ohio, by county
School districts in Washington County, largest first
- Marietta City School District22,745 people
- Warren Local School District14,445 people
- Morgan Local School District13,219 people
- Caldwell Exempted Village School District8,624 people
- Belpre City School District8,366 people
- Fort Frye Local School District5,256 people
- Frontier Local School District5,028 people
- Wolf Creek Local School District3,218 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Marietta, Ohio (city)13,203 people
- Belpre, Ohio (city)6,654 people
- Devola, Ohio (CDP)2,688 people
- Beverly, Ohio (village)1,625 people
- Newport, Washington County, Ohio (CDP)1,180 people
- Reno, Ohio (CDP)1,040 people
- Matamoras (New Matamoras), Ohio (village)864 people
- Lowell, Ohio (village)556 people
- Waterford, Ohio (CDP)395 people
- Little Hocking, Ohio (CDP)167 people
- Vincent, Ohio (CDP)139 people
- Macksburg, Ohio (village)125 people
All 13
- Lower Salem, Ohio (village)92 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Wood County, West Virginia17 mi south
- Pleasants County, West Virginia18 mi east
- Noble County, Ohio22 mi north
- Morgan County, Ohio23 mi northwest
- Monroe County, Ohio29 mi northeast
- Athens County, Ohio31 mi west
- Tyler County, West Virginia33 mi east
Before using this answer on a form
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