The route existed from 1923 until 1933 when it was renumbered to SR 177 due to the addition of US 224 in the northern section of the state.

[5] After 1927, the road appeared on Ohio maps as an unnumbered state highway for three years before being deleted altogether.

[1][13][14] SR 9 stayed south of the railroad tracks before entering the village.

Located in central Seneca County, the route connected Tiffin and Republic.

This incarnation of the designation ran from eastern Bellevue to the community of Strongs Ridge at SR 4 (within Lyme Township).

The route existed from 1923 until 1957 when all state highways in the vicinity of Fremont were moved outside of the city.

[13] The entire route was located in Perrysburg mostly within the area of the Fort Meigs State Memorial.

[23] The route connected SR 65 on the north side of the Fort to the foot of the Maumee-Perrysburg Bridge along US 20, US 23, and US 25.

[25] Around 1971, restoration of the Fort Meigs site resulted in the rerouting of SR 65 south of the park; this relocation also caused the abandonment of some parts of SR 230; the route was removed from the state highway system as a result of this.

[16][18] The route throughout its history ran between West Lafayette and Shanesville and also passed through Baltic.

[6] In 1932, the route was extended north of Killbuck to act as a connector from US 62 to the village of Glenmont.

[8][16] At a length of about 1+1⁄2 miles (2.4 km), the route connected the villages of Buckeye Lake and Hebron.

The state highway was created in 1948 along an unnumbered road and deleted after 1967 when SR 269 was extended north to the park's entrance.

[41] SR 244 was an L-shaped state route that existed from 1925 until 1961 and passed through the community of Newport, Washington County.

[16] In 1961, the route was removed from the state highway system having been replaced by two county roads: CR 25 (Greene Street) is the former north-south section and CR 244 (Dana Road) is the former east-west portion.

From 1925 until 1936, the route was a three-mile-long (4.8 km) connector from Mallet Creek to US 42 (originally SR 3) in Medina Township.

[45] SR 255 was a state highway that existed for one year, 1926, and ran between Ada and Mount Cory.

[2][5] By 1933, the entire route was deleted and the road on which it ran became a northern extension of SR 16.

[8][10] SR 256 was the state-numbered route for Lewis Avenue north of the city limits of Toledo.

Throughout its nearly 40 years in existence, the route always traveled from the community of Osceola at US 30N to Texas Township, just south of the Seneca County line at SR 100.

[47][48] The route, created in 1928, existed until 1975 when the entire road was turned over to county and local control.

[11][49][50][51] SR 270 was a short state highway in the vicinity of Fort Meigs in Perrysburg.