State Route 256 is a 25.99 miles (41.8 km) east–west state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 in the central portion of the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Ohio

Ohio

Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...

. The western terminus of SR 256 is at a T-intersection with U.S. Route 40 (US 40) in Reynoldsburg

Reynoldsburg, Ohio

Reynoldsburg is a city in Fairfield, Franklin, and Licking counties in the U.S. state of Ohio. It is a suburban community in the Columbus, Ohio metropolitan area...

. Its eastern terminus is at a T-intersection with SR 13 approximately 5.5 miles (8.9 km) northeast of Somerset

Somerset, Ohio

Somerset is a village in Perry County, Ohio, United States. The population was 1,549 at the 2000 census.Saint Joseph Church, the oldest Catholic church in Ohio, is located just outside of Somerset on State Route 383.-Geography:...

.

Route description

SR 256 runs through parts of Franklin

Franklin County, Ohio

Franklin County is a county located in the state of Ohio, United States. In 2010 the population was 1,163,414, making it the second largest county in Ohio and the 34th largest county in population in the United States. Franklin County is also the largest in the eight-county Columbus, Ohio...

, Fairfield

Fairfield County, Ohio

Fairfield County is a county located in the state of Ohio, United States. As of 2010, the population was 146,156. Its county seat is Lancaster. Its name is a reference to the Fairfield area of the original Lancaster....

 and Perry

Perry County, Ohio

Perry County is a county located in the state of Ohio, United States. Founded on March 1, 1818, it was the 55th county to be formed in Ohio. Portions of Fairfield, Washington and Muskingum Counties were taken to create Perry County. As of the 2010 census, the population was 36,058. Its county seat...

 Counties. No portion of SR 256 is included within the National Highway System

National Highway System (United States)

The National Highway System is a network of strategic highways within the United States, including the Interstate Highway System and other roads serving major airports, ports, rail or truck terminals, railway stations, pipeline terminals and other strategic transport facilities.Individual states...

(NHS). The NHS is a system of highways deemed most important for the nation's economy, mobility and defense.