North of Honey Grove, FM 100 travels near the eastern edge of Caddo National Grassland and Lake Crockett.

On December 17, 2009, the section from Elks Boulevard and Preston Bend junction north of Preston south 6.3 miles (10.1 km) was transferred to SH 289, the section from Worthington Lane in Pottsboro south 0.7 miles (1.1 km) to existing FM 120 was transferred to Spur 316, and FM 120 was extended west 4.5 miles (7.2 km) to Cooks Corner Road/Willow Springs Road, replacing a section of FM 996.

The designation of the section previously transferred to UR 120 reverted to FM 120 with the elimination of the Urban Road system on November 15, 2018.

On January 16, 1953, the road was extended west to SH 10 (now US 377) at Tioga, replacing FM 1284 (connecting section designated December 17, 1952).

FM 127 was designated on February 28, 1945, from Spur 134 (later this section became part of rerouted US 271, now SH 49) in Mount Pleasant southwestward 8.2 miles (13.2 km) to a community.

A previous route numbered FM 130 was designated on February 28, 1945, from US 180 at Palo Pinto south to Lone Camp.

On July 15, 1949, the road was extended south to US 80, while a short section of the old route in Leigh was redesignated as a spur connection.

FM 139 was designated on February 28, 1945, to go from SH 7 southeastward 4.3 miles (6.9 km) to the Sabine National Forest boundary.

Farm to Market Road 140 (FM 140) is located in Uvalde, Zavala, Frio, and Atascosa counties.

FM 142 was designated on February 28, 1945, from US 380 (now SH 6) at Stamford eastward and southward 13.0 miles (20.9 km) to Bethel Lutheran Church.

It runs from Cagnon Road near the Texas Department of Criminal Justice's Dominguez Unit southwest of San Antonio to Loop 1604.

On November 16, 1953, the road was extended south 10.2 miles (16.4 km), replacing FM 1304 (connecting section designated October 28).

On December 19, 1959, the section southwest of SH 7 was relocated due to inability to secure right of way, and was renumbered FM 712 as a result.

On November 13, 1953 (connecting section designated October 28), the road was extended west to SH 71, replacing FM 1870.

The next day, another section was added from SH 90 north of Roans Prairie west 10 miles (16 km) to the Keith/Carlos Road, creating a gap.

A previous route numbered FM 161 was designated on June 12, 1945, from US 90 6 miles (9.7 km) west of Dayton north to East Gate Road.

A previous route numbered FM 162 was designated on June 12, 1945, from Moss Hill east 3.0 miles (4.8 km).

FM 163 was designated on June 12, 1945, from the Oak Shade Fire Tower on SH 321 to a point 2.3 miles (3.7 km).

[98][100] RM 165 (in conjunction with Loop 163) provides a bypass of Johnson City and the US 281/290 junction for traffic traveling between Blanco and points east of Henly, such as Dripping Springs and Austin.

On July 5, 1951, the road was extended north to a point 5.0 miles (8.0 km) from Nazareth, replacing FM 1056 (connecting section designated May 23).

[111] The route travels north near Alamito Creek[112] and reaches its northern terminus at US 67 approximately 7 miles (11 km) south of Marfa.

The first FM 177 was designated in Dawson County on June 11, 1945, from SH 137, 3 miles (4.8 km) south of Lamesa, to Patricia.

A previous route numbered FM 180 was designated on June 11, 1945, from Arvana, north of Lamesa, to 3.0 miles (4.8 km) east.

The road begins at US 84 and continues southwestward and northwestward, passing through Pearl and Bee House before ending at US 84 east of Evant.

It runs from Loop 225 in Carrizo Springs southwest 14.2 miles (22.9 km) to a county road that continues to Dentonio.

FM 186 was designated on June 11, 1945, from US 83 (this section became Loop 225 on November 18, 1947) in Carrizo Springs southwest 11.2 miles (18.0 km) toward Dentonio.

[149] From here, the road proceeds northwestward, paralleling the river and passing Fort Quitman and Esperanza,[150][151] before ending at SH 20 at McNary.

[148][152] FM 192 was designated on June 11, 1945, from US 80 (present-day SH 20) at McNary, via Esperanza, to the Arroyo Balluco, at a distance of approximately 12.0 miles (19.3 km).

On July 21, 1949, the route was extended 13.8 miles (22.2 km) further down the river to the Cox School, at its present southern terminus.

The road begins at FM 79 near Direct, and heads northward and eastward via Ragtown and Forest Chapel to US 271 in Arthur City.