List of 18 Zip Codes in Washington County, Ohio

On this page, we'll list out the 18 Washington County, Ohio ZIP codes we have, including the land area and county name of each code.

Ohio is the 34th largest state by total land area, with a land area of 44,826 square miles (116,099 square kilometers) and has a total population of 11,675,275 people as of the most recent U.S. Census survey.

Washington County makes up approximately 2.57% of the total land area for Ohio and we have 18 zip codes for the county in our database, which you can see details of below, with land area information for each zip code.

More Counties in Ohio

If you want to search and find zip codes for different counties in Ohio, the list below contains links to each of the 88 Ohio counties we have data for.

• Adams County
• Allen County
• Ashland County
• Ashtabula County
• Athens County
• Auglaize County
• Belmont County
• Brown County
• Butler County
• Carroll County
• Champaign County
• Clark County
• Clermont County
• Clinton County
• Columbiana County
• Coshocton County
• Crawford County
• Cuyahoga County
• Darke County
• Defiance County
• Delaware County
• Erie County
• Fairfield County
• Fayette County
• Franklin County
• Fulton County
• Gallia County
• Geauga County
• Greene County
• Guernsey County
• Hamilton County
• Hancock County
• Hardin County
• Harrison County
• Henry County
• Highland County
• Hocking County
• Holmes County
• Huron County
• Jackson County
• Jefferson County
• Knox County
• Lake County
• Lawrence County
• Licking County
• Logan County
• Lorain County
• Lucas County
• Madison County
• Mahoning County
• Marion County
• Medina County
• Meigs County
• Mercer County
• Miami County
• Monroe County
• Montgomery County
• Morgan County
• Morrow County
• Muskingum County
• Noble County
• Ottawa County
• Paulding County
• Perry County
• Pickaway County
• Pike County
• Portage County
• Preble County
• Putnam County
• Richland County
• Ross County
• Sandusky County
• Scioto County
• Seneca County
• Shelby County
• Stark County
• Summit County
• Trumbull County
• Tuscarawas County
• Union County
• Van Wert County
• Vinton County
• Warren County
• Washington County
• Wayne County
• Williams County
• Wood County
• Wyandot County

Data Source(s)

All of the zip code data on this page is sourced from the United States Census Bureau geography reference files.

Link To or Reference This Page

We spent a lot of time downloading, cleaning, merging, and formatting the data that is shown on the site.

If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!