List of highways in Williamson County, Texas
Route Name Direction Termini Junctions Length Remarks
FM 112 W/E SH 95 to Milam County SH 95 US 79 FM 619 FM 486 Approximately 18.0 mi ( 29.0 km ) Known in Taylor as E Walnut St and as Martin Luther King , Jr Blvd
RM 243 E/W US 183 to Burnet County US 183 Approximately 0.3 mi ( 0.48 km )
FM 397 Clockwise US 79 to SH 95 US 79 / Bus . US 79 SH 95 3.456 mi ( 5.562 km ) Route entirely in Taylor , where it is known as Carlos G Parker Blvd and forms northwest quadrant of a beltway loop
FM 486 N/S Milam County to FM 112 FM 112 Approximately 2.9 mi ( 4.7 km )
FM 487 W/E Bus . SH 195 to Bell County Bell County to Bell County Bus . SH 195 SH 195 FM 2843 I-35 Approximately 27.8 mi ( 44.7 km ) Known in Florence as E Main St Known in Jarrell as E Ave J , S 6th St , Ave L , IH 35 frontage roads , and also C. Bud Stockton Loop Official route designation is discontinuous as it excludes above detours ( signed as FM 487 due to lack of direct crossing ) Enters Bell County north of Schwertner for approximately 0.4 miles ( 0.64 km ) , re-enters Williamson County for approximately 7.5 miles ( 12.1 km ) , then re-enters Bell County in Bartlett , about 800 feet ( 240 m ) short of SH 95 Known in Bartlett as S Brune St and as W Clark St
FM 619 N/S FM 1331 to Lee County FM 1331 US 79 FM 112 FM 1466 FM Spur 619 Approximately 20.1 mi ( 32.3 km ) Official route designation excludes 0.34-mile ( 0.55 km ) concurrency with FM 112
FM Spur 619 W/E FM 619 to Lee County FM 619 Approximately 2.0 mi ( 3.2 km ) Ends at intersection with Lee CR 304 and Post Oak Dr ( at Lee County Line )
RM 620 W/E Travis County to I-35 RM 2769 US 183 / 183A Toll Road / SH 45 / SH 45 Toll FM 734 SH 45 / SH 45 Toll I-35 Approximately 19.8 mi ( 31.9 km ) Officially known as UR ( Urban Road ) 620 Certified mileage includes 3.3-mile ( 5.3 km ) concurrency with SH 45 frontage roads Junction with RM 2769 ( Anderson Mill Rd ) is at Travis County Line Known within Round Rock city limits as Round Rock Ave
FM 685 N/S US 79 to Travis County US 79 SH 130 Toll Approximately 3.0 mi ( 4.8 km ) Known in and near Hutto ( east of SH 130 ) as Chris Kelley Blvd Concurrent as frontage roads of SH 130 south of that point and into Travis County
FM 734 W/E RM 1431 to Travis County RM 1431 SH 45 / SH 45 Toll / RM 620 Approximately 6.6 mi ( 10.6 km ) Known officially as UR ( Urban Road ) 734 Known locally as Parmer Ln for its entire length
FM 970 W/E US 183 to Bus . SH 195 US 183 RM 2338 Bus . SH 195 8.061 mi ( 12.973 km )
FM 971 W/E Spur 158 to Williamson County Road 361 FM 1105 SH 95 ( concurrency ) 23.818 mi ( 38.331 km ) Known informally in Georgetown as Weir Rd Known in Granger as W Mesquite St , as S Commerce St for two blocks concurrent with SH 95 , and as E Davilla St Certified mileage excludes above concurrency Ends and becomes Williamson CR 361 at an arbitrary point northeast of Granger Lake dam
FM 972 W/E I-35 to SH 95 I-35 FM 1105 ( concurrency ) SH 95 13.685 mi ( 22.024 km )
FM 973 N/S US 79 to Travis County US 79 FM 1660 Approximately 6.8 mi ( 10.9 km )
FM 1063 N/S FM 1331 to US 79 FM 1331 US 79 5.761 mi ( 9.271 km )
FM 1105 S/N FM 2606 to FM 487 FM 2606 FM 972 ( concurrency ) FM 487 13.944 mi ( 22.441 km )
FM 1325 N/S SH 45 to Travis County SH 45 / SH 45 Toll Approximately 1.5 mi ( 2.4 km ) Also known as Burnet Rd ( state designation ends at US 183 )
FM 1331 W/E SH 95 to Milam County SH 95 FM 619 FM 1063 Approximately 12.4 mi ( 20.0 km )
RM 1431 W/E Travis County to I-35 US 183 183A Toll Road FM 734 US 183 I-35 Approximately 10.5 mi ( 16.9 km ) Known in Cedar Park as Whitestone Blvd
FM 1460 N/S Spur 26 to US 79 Spur 26 / FM 2243 US 79 8.066 mi ( 12.981 km ) Known in Round Rock as AW Grimes Blvd
Farm and Ranch to Market Roads
The following is a list of highways in Williamson County, Texas, which are maintained by the Texas Department of Transportation. All state highways in Texas are paved.