U.S. Route 77 (US 77) is a major highway that is part of the United States Numbered Highway System that runs from the Veterans International Bridge in Brownsville to Sioux City, Iowa. In Texas, the road runs south-north for 471.3 miles (758.5 km) from the International border with Mexico to the Oklahoma state line north of Gainesville. The highway is being upgraded to a freeway near Corpus Christi to connect to the freeway part of the highway in Raymondville as part of future I-69. A freeway in Robstown is already signed as part of I-69. From Waco to the Oklahoma state line, US 77 overlaps or runs parallel to I-35/I-35E.

US 77 crosses the Rio Grande with US 83 on the Veterans International Bridge. The two highways run together concurrent with I-69E until Harlingen. US 83 runs west (north) along I-2 to McAllen while US 77 runs north along with I-69E to Raymondville where the I-69E designation temporarily ends. North of Raymondville, the highway passes through Kenedy County, serving the county seat of Sarita; US 77 is the only state-maintained route to run through the county.

In Robstown, US 77 again picks up the I-69E designation until the interchange with I-37 in north Corpus Christi. US 77 shares a short overlap with I-37 before leaving the highway. US 77 runs through many small to mid-size communities before arriving in Waco. Here, US 77 begins its overlap with I-35 that lasts until Hillsboro, where the highway then parallels I-35E until Red Oak. North of Red Oak, US 77 overlaps I-35E through Dallas, leaving the interstate again in Denton. In Denton, US 77 is a suburban road that serves the downtown area and has an overlap with US 377 in the town, intersecting US 380 near Texas Women's University. After an interchange with Loop 288, US 77 rejoins I-35 in north Denton. US 77 remains concurrent with I-35 through Gainesville then crosses the Red River into Oklahoma.

US 77 was designated in 1927 from Gainesville to Corpus Christi. In 1943, the highway was extended south of Corpus Christi to the international border at Brownsville; this extension also rerouted the section of highway between Sinton and Corpus Christi, as the previous route traveled through Gregory between the two towns. In 1953, US 77 was rerouted between Halletsville and Victoria over former SH 295. The section of highway through Victoria was rerouted in 1978 to remove a concurrency with US 59, but this was cancelled the following year. In 1997, US 77 was extended so the highway's official designation ran to the Los Tomates International Bridge in Brownsville. In 2000, the city of Denton turned US 77 into a pair of one-ways streets from US 377 to FM 2164, with northbound traffic using Locust Street and southbound traffic using Elm Street. In 2003, the section of US 77 in Robstown between FM 892 and 9th Street was removed the state highway system as construction of a bypass around the town began.

In August 2011, TxDOT received permission from the Federal Highway Administration (FHWA) to designate the Robstown bypass as I-69 due to it already being built to Interstate Highway standards and connecting to another Interstate Highway; the American Association of State Highway and Transportation Officials (AASHTO) approved the designation later that year in October. An official ceremony was held on December 5, 2011 to unveil I-69 signs on the Robstown-Corpus Christi freeway. This section of the highway was later re-designated as I-69E in 2013, though most of the original I-69 signage is still in place.

The section of freeway in the East Rio Grande Valley received approval for Interstate designation in May 2013. This section of highway was designated as I-69E as the two other branches of I-69, I-69C and I-69W were also approved. Signage was installed over the summer of 2013.

US 77 from Raymondville to Victoria is planned to be upgraded to I-69E. South of Corpus Christi, US 77 is a freeway around most of Kingsville, with interchanges being constructed at US 77 Bus. and FM 1717 south of the town that would complete the freeway in Kingsville. A freeway section of US 77 also exists in the town of Bishop, with a bypass of Driscoll recently finishing construction, with the northbound lanes opened to traffic in 2021 while the southbound lanes opened in August 2023; making the freeway complete from I-37 to Kingsville.

Between Corpus Christi and Victoria, US 77 is still mostly a divided highway that does not bypass most of the towns it travels through. As of June 2022, Sinton is the only town along this section of US 77 that the highway bypasses. A bypass for Refugio, Texas is planned. Once completed, I-69E will end at I-69W (US 59) in Victoria, with those two Interstates forming I-69.

County	Location	mi	km	Destinations	Notes
Cameron	Brownsville	0.0	0.0	Veterans International Bridge at Los Tomates over the Rio Grande south end of US 83 overlap
		0.9	1.4	University Boulevard / East Avenue - UT-Brownsville, Texas Southmost College	at-grade intersection
overlap; see I-69E
Kenedy	​	99.6	160.3	Sarita	interchange
Kleberg	Riviera	105.8	170.3	FM 771 east – Riviera Beach
		105.9	170.4	SH 285 west – Falfurrias
	​	108.7	174.9	RM 628 east – Loyola Beach
	​	112.4	180.9	FM 772
	Ricardo	114.6	184.4	FM 1118 east
	Kingsville	116.5	187.5	Bus. US 77 / County Road 2120	interchange under construction
		118.6	190.9	FM 1717 east	interchange under construction
		119.3	192.0	FM 1356 (General Cavazos Boulevard)	interchange; south end of freeway; access to CHRISTUS Spohn Hospital
		120.0	193.1	FM 425 (Senator Carlos Truan Boulevard) / Caesar Avenue
		120.5	193.9	SH 141 (King Avenue) / Kenedy Avenue / Caesar Avenue
		122.1	196.5	FM 1898 (Corral Avenue) / FM 2045 (Santa Gertrudis Avenue)
	​	123.1	198.1	Sage Road
	​	124.0	199.6	Embarque
Nueces	Bishop	126.0	202.8	FM 257 / FM 70 – Bishop, Chapman Ranch, Agua Dulce
	​	129.0	207.6	Bus. US 77 / County Road 10
	​	130.1	209.4	FM 3354 – Bishop Airport
	Driscoll	132.0	212.4	Bus. US 77 – Driscoll	northbound exit and southbound entrance
		134.4	216.3	FM 665
		136.0	218.9	Bus. US 77 – Driscoll	southbound exit and northbound entrance
	​	139.3	224.2	FM 2826 I-69E begins	interchange; current southern terminus of I-69E
	overlap; see I-69E
	Corpus Christi	149.8	241.1	I-37 south – Corpus Christi	current north end of I-69E overlap; south end of I-37 overlap; US 77 south follows exit 14
		150.4	242.0	Sharpsburg Road / Redbird Lane	I-37 exit 15
		152.0	244.6	Labonte Park	I-37 exit 16
San Patricio	​	152.8	245.9	I-37 north – San Antonio	north end of I-37 overlap; US 77 north follows exit 17
	Odem	157.3	253.1	SH 234 west / FM 631 east (Main Street) – Edroy, Taft
	​	159.2	256.2	FM 1944 east – Taft
	Sinton	162.2	261.0	Bus. US 77 north / FM 1945 west	interchange
		164.1	264.1	SH 188 – Mathis	interchange
		165.2	265.9	US 181 – Beeville	interchange
		166.0	267.2	SH 89 to US 181 – Beeville, Gregory	interchange
		167.2	269.1	Bus. US 77	interchange
Refugio	Woodsboro	183.2	294.8	FM 1360 south
		183.4	295.2	FM 136 south – Woodsboro, Bayside
		183.7	295.6	FM 2441 north
	Refugio	188.5	303.4	FM 774 east (Empresario Street) – Austwell
		189.9	305.6	US 77 Alt. north / US 183 north – Goliad
	​	209.6	337.3	SH 239 – Tivoli, Goliad	interchange
Victoria	​	212.7	342.3	FM 445 east – McFaddin
	Victoria	223.5	359.7	US 59 (via Spur 91) – Houston, Victoria	Exit 7 on I-69/US 59 southbound; interchange; northbound exit and southbound entrance; future I-69 north
		224.7	361.6	US 59 north / Bus. US 77 north – Houston, Victoria	interchange; south end of US 59 overlap
		227.1	365.5	FM 446
		228.3	367.4	US 59 south / Bus. US 59 north – Goliad, Laredo	interchange; north end of US 59 overlap
		232.0	373.4	FM 236	interchange; south end of freeway
		233.3	375.5	FM 1685	no direct northbound exit (signed at FM 236)
		236.5	380.6	US 87 – Cuero
		237.1	381.6	Briggs Boulevard / Nursery Drive	no direct northbound exit
		237.3	381.9	Mallette Drive / Invitational Drive
		238.4	383.7	Bus. US 77 south / Loop 463 east – Edna	interchange; north end of freeway
	​	252.8	406.8	FM 444 south – Inez
	​	254.2	409.1	FM 682 north – Terryville, Yoakum
DeWitt	No major junctions
Lavaca	​	261.5	420.8	SH 111 – Edna, Yoakum	interchange
	​	268.5	432.1	FM 531 – Koerth, Ezzell
	​	278.4	448.0	FM 318 south – Sweet Home
	Hallettsville	279.1	449.2	US 77 Alt. south / US 90 Alt. west	south end of US 90 Alt. overlap
		279.7	450.1	US 90 Alt. east – Eagle Lake	north end of US 90 Alt. overlap
		279.9	450.5	FM 957 north (East First Street)
	​	288.1	463.7	FM 532 east – Oakland	south end of FM 532 overlap
	​	288.7	464.6	FM 532 west – Komensky, Moulton	north end of FM 532 overlap
Fayette	Schulenburg	296.2	476.7	Loop 222
		296.9	477.8	US 90 – Flatonia, Weimar
		297.7	479.1	I-10 – Flatonia, San Antonio, Weimar, Houston	I-10 exit 674
	​	299.4	481.8	FM 615 east
	​	302.1	486.2	FM 956 west – Freyburg
	Swiss Alp	304.3	489.7	FM 1383 south – Ammannsville
		305.1	491.0	FM 3171 south
	​	307.7	495.2	FM 2436 west – Hostyn
	​	311.9	502.0	Spur 92 west / FM 155 south – Monument Hill Kreische Brewery State Park, Weimar
	La Grange	313.5	504.5	Bus. SH 71 to SH 159 – Smithville, Brenham
		314.6	506.3	SH 71 – Smithville, Austin, Columbus	interchange
	​	316.2	508.9	FM 2145 north – Nechanitz
	​	320.3	515.5	FM 153 west – Winchester, Smithville
	Warda	324.6	522.4	FM 1482 west
Lee	Giddings	333.5	536.7	FM 448 south
		333.9	537.4	US 290 (Austin Street)
		334.4	538.2	FM 2440 (Independence Street)
	​	340.1	547.3	FM 1624 north – Fedor, Lexington
	​	342.4	551.0	SH 21 – Bastrop, Caldwell	interchange
	​	346.5	557.6	FM 3403 east
	Lexington	350.1	563.4	Loop 123 north / FM 696 west to FM 112 / FM 1624 – Taylor, Elgin	south end of FM 696 overlap
		350.4	563.9	FM 696 east	north end of FM 696 overlap
		351.7	566.0	Loop 123 south to FM 112 / FM 696 / FM 1624
Milam	​	364.8	587.1	FM 487 north
	Rockdale	367.1	590.8	FM 908 – Caldwell, Airport
		369.2	594.2	US 79 – Hearne, Round Rock	interchange
	​	374.9	603.3	FM 1712 south – Rockdale
	​	381.1	613.3	US 190 east / SH 36 south – Milano	south end of US 190 / SH 36 overlap
	​	382.0	614.8	FM 2095 east – Gause
	Cameron	384.6	619.0	US 190 west / SH 36 north	north end of US 190 / SH 36 overlap
	Splawn	389.3	626.5	FM 485 – Hearne, Seaton
	Ben Arnold	392.4	631.5	FM 1444 east – Clarkson
	Burlington	395.5	636.5	FM 1963 north – Barclay
Falls	​	397.4	639.6	FM 1445 south – Clarkson
	Rosebud	400.3	644.2	Loop 265 north / FM 1963 south (Main Street) – Reagan, Barclay
		401.1	645.5	SH 53 west – Temple
	​	402.5	647.8	Loop 265 south to FM 413 – Reagan
	Travis	405.0	651.8	FM 431 east – Cedar Springs	south end of FM 431 overlap
		405.1	651.9	FM 431 west – Westphalia	north end of FM 431 overlap
	Lott	410.1	660.0	SH 320 – Temple, Marlin
	​	413.8	665.9	FM 935 – Troy, Marlin
	​	415.6	668.8	SH 7 east – Marlin	south end of SH 7 overlap
	​	416.3	670.0	FM 1950 west – Cego
	​	416.6	670.5	SH 7 west / Bus. SH 7 east – Bruceville-Eddy	interchange; north end of SH 7 overlap
	Golinda	422.3	679.6	FM 2839 east
McLennan	​	424.0	682.4	FM 2643 west – Levi, Mooreville	south end of FM 2643 overlap
	​	424.1	682.5	FM 2643 east – Asa	north end of FM 2643 overlap
	Robinson	425.7	685.1	FM 2837 west – Lorena
		428.7	689.9	FM 3148 west – Hewitt
	Waco–Robinson line	431.5	694.4	SH 6 / Loop 340 – Meridian, Marlin	interchange
	Waco	433.3	697.3	Loop 396 north – Austin, Fort Worth, Dallas	traffic circle
		434.0	698.5	Bus. US 77 north (La Salle Avenue)
		434.5	699.3	I-35 south (Jack Kultgen Expressway) / South 17th Street (Loop 2) – Austin	south end of I-35 overlap; US 77 south follows exit 334
see I-35
Hill	Hillsboro	470.7	757.5	I-35 north / Spur 579 south – Fort Worth, Dallas	north end of I-35 overlap; US 77 north follows exit 370
	Carl's Corner	474.2	763.2	FM 2959 west to I-35E
	Midway	477.4	768.3	FM 934 west – Itasca
	​	478.4	769.9	FM 1243 south – Brandon
Ellis	Milford	481.3	774.6	FM 308 south – Malone	south end of FM 308 overlap
		481.6	775.1	FM 566 west to I-35E
	​	482.3	776.2	FM 308 north – Maypearl	north end of FM 308 overlap
	Italy	486.7	783.3	SH 34 to I-35E – Ennis
	Forreston	492.2	792.1	FM 329 west to I-35E
	Nena	496.9	799.7	FM 55 south – Avalon
	Waxahachie	499.3	803.5	I-35E – Dallas	I-35E exit 397
		500.9	806.1	FM 66 west (Rogers Street) / FM 877 south (Howard Road)
		501.4	806.9	Bus. US 287 (West Main Street)
		502.0	807.9	FM 878 east (West Marvin Avenue)
		503.8	810.8	US 287 – Fort Worth, Corsicana	interchange
	​	506.6	815.3	FM 387 to I-35E / FM 813
	Red Oak	508.9	819.0	SH 342 north – Red Oak
		509.4	819.8	I-35E south – Waco	south end of I-35E overlap; US 77 south follows exit 408
see I-35E
Denton	Denton	565.3	909.8	I-35E north – Oklahoma City	north end of I-35E overlap; US 77 north follows exit 464
		567.0	912.5	US 377 south (Fort Worth Drive)	south end of US 377 overlap
		567.7	913.6	FM 426 east (McKinney Street)
		568.6	915.1	US 377 north / US 380 (University Drive)	north end of US 377 overlap
		568.7	915.2	FM 428 east (Sherman Drive)
		569.3	916.2	FM 2164 north (Locust Street)
		571.5	919.7	Loop 288 / US 380 Truck	interchange
		572.4	921.2	I-35 south to FM 1173 – Krum	south end of I-35 overlap; US 77 south follows exit 471
see I-35
Cooke	​	605.3	974.1	I-35 north / US 77 north – Ardmore, Oklahoma City	Oklahoma state line (bridge over Red River)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

US 77 has nine designated business loops in Texas, between the one in Waco and the mainline highway's southern terminus at the Mexico border. US 77 also has one auxiliary route designated as Alt. US 77, which is a 91-mile (146 km) alternate route of US 77, located entirely in the state of Texas, running from Hallettsville to Refugio. Alt. US 77 also has a designated business loop in Yoakum, labeled "Business Alternate US 77-Q".

Business U.S. Highway 77
Location	Waco
Length	9.716 mi (15.636 km)
Existed	June 21, 1990–present

Business U.S. Highway 77-L (Bus. US 77-L) is a 9.7-mile (15.6 km) business loop in Waco. The highway is the old alignment of US 77 through the city and was formerly signed as a US 77 and US 81 business loop, but designated as Loop 491 on October 2, 1970, until it was changed to the current Bus. US 77 designation on June 21, 1990. The section of highway from Loop 484 to US 84 is a freeway, making it the only business route in Texas that is a freeway.

Business U.S. Highway 77
Location	Victoria
Length	11.2 mi (18.0 km)
Existed	April 25, 2002–present

Business U.S. Highway 77-S (Bus. US 77-S) is a 11.2-mile (18.0 km) business loop in Victoria. The loop's southern terminus begins at an interchange with US 77 and US 59 south of Victoria, traveling northward before reaching a grade separated interchange with Bus. US 59-T. Bus. US 77-S and Bus. US 59-T travel northeastward on Moody Street before making a sharp right curve eastward to Rio Grande Street. On Main Street, the two highways share a wrong-way concurrency with US 87 before Bus. US 77-S turns to the north onto Navarro Street. The business loop's northern terminus is at an intersection with US 77 and Loop 463 north of town.

Business U.S. Highway 77
Location	Sinton
Length	4.8 mi (7.7 km)

Business U.S. Highway 77-T (Bus. US 77-T) is a 4.8-mile (7.7 km) business loop in Sinton. The business loop begins at an interchange with US 77 southwest of Sinton, turning northeast before intersecting with US 181 and SH 188. After a short overlap with both highways eastward, Bus. US 77-T turns back to the north and continues northeast until its northern terminus at another interchange with US 77 northeast of town.

Business U.S. Highway 77
Location	Nueces County
Length	5.5 mi (8.9 km)

Business U.S. Highway 77-U II (Bus. US 77-U II) is a 5.5-mile (8.9 km) business loop in Nueces County. The business loop's southern terminus begins at an intersection of I-69E and US 77 in southern Robstown, heading north into town. The business loop then intersects with Bus. SH 44-C, sharing a short overlap with the business loop before Bus. US 77-U splits away from Bus. SH 44-C, heading northeast. The business loop intersects with I-69E and US 77 and ends at its northern terminus north of Robstown after running parallel with the latter two highways on the frontage roads.

Business U.S. Highway 77
Location	Driscoll
Length	6.1 mi (9.8 km)

Business U.S. Highway 77-U (Bus. US 77-U) is a 6.1-mile (9.8 km) business loop in Driscoll. The southern terminus of the business loop begins at an interchange with I-69E/US 77 and travels northeast into town, with the only major intersection being FM 665. The business loop runs mostly parallel with the mainline I-69E/US 77 and its northern terminus is at another interchange with the latter highway.

Business U.S. Highway 77
Location	Kingsville–Bishop
Length	13 mi (21 km)

Business U.S. Highway 77-V (Bus. US 77-V) is a 13-mile (21 km) business loop that runs through Kingsville and Bishop. The business loop's southern terminus begins at an intersection with US 77 and travels northwest and then turns to the north, eventually entering Kingsville. The route then turns to the northeast and then turns left onto S 14th Street, heading north. Bus. US 77-V then turns back to the northeast after leaving Kingsville and eventually enters Bishop after a few miles. After passing through Bishop, Bus. US 77-V then turns to the east and hits its northern terminus at another intersection with US 77.

Business U.S. Highway 77
Location	Sebastian–Raymondville
Length	14.2 mi (22.9 km)

Business U.S. Highway 77-W (Bus. US 77-W) is a 14.2-mile (22.9 km) business loop that runs through Sebastian, Lyford, and Raymondville. The business loop begins at its southern terminus at an intersection with I-69E and US 77, turning to the northwest before turning north, running parallel with I-69E and US 77. Bus. US 77-W reaches Sebastian, passing through town before exiting, eventually reaching South Lyford and Lyford. Bus. US 77-W continues northward out of town before turning slightly to the northeast and entering Raymondville. The business loop continues northeastward before reaching an intersection with Willacy County Road 3690W. Bus. 77-W then turns to the right and immediately ends at its northern terminus at another intersection with I-69E and US 77.

Business U.S. Highway 77
Location	San Benito–Combes
Length	15.9 mi (25.6 km)

Business U.S. Highway 77-X (Bus. US 77-X) is a 15.9-mile (25.6 km) business loop that runs through San Benito, Harlingen, and Combes. The business loop begins at an interchange with I-69E and US 77, heading northwest through San Benito before entering Harlingen. After briefly turning to the north while passing through Harlingen, Bus. US 77-X turns back to the northwest where it intersects with I-69E and US 77 again. The business loop then exits Harlingen and continues northwest into Combes. After leaving Combes, the business loop reaches its northern terminus at another intersection with I-69E and US 77.

Business U.S. Highway 77
Location	Brownsville
Length	3.8 mi (6.1 km)

Business U.S. Highway 77-Z (Bus. US 77-Z) is a 3.8-mile (6.1 km) business loop in Brownsville. The loop's southern terminus begins at an intersection of SH 4 and takes a northwestern direction before turning to the north. The business loop's northern terminus is at an intersection of FM 802, close to an intersection of I-69E, US 77, and US 83.

Alternate U.S. Highway 77
Location	Refugio–Hallettsville
Length	91.0 mi (146.5 km)
Existed	1953–present

Alternate US Highway 77 (Alt. US 77) is a north-south auxiliary route of US 77, located entirely within the state of Texas. The alternate route was commissioned in 1953 when the mainline US 77 was rerouted through southeast Texas. Alt. US 77 begins at an intersection in Refugio with the mainline US 77, sharing a concurrency with US 183. The two highways share a concurrency through Goliad and Cuero. SH 239 shares a short overlap with Alt. US 77 and US 183 through Goliad, and US 87 shares a concurrency with the two highways in Cuero. Alt. US 77 splits away from US 183, heading northeast through Yoakum, which also has a business loop of the highway. After passing through Yoakum, Alt. US 77 intersects and merges with Alt. US 90 just west of Hallettsville, where the two highways intersect with mainline US 77.

Business Alternate U.S. Highway 77-Q
Location	Yoakum
Length	2.921 mi (4.701 km)

Alt. US 77 has one business loop in Yoakum. Officially designated by TxDOT as Business US 77-Q, it is signed with two auxiliary banners as Business Alternate US 77 (Bus. Alt. US 77). The route was originally established as Loop 51 in 1939 and was redesignated in 1991. The loop begins at Alt. US 77 south of Yoakum, then travels northwest into the city along Huck Street. It then turns north along Irvine Street, and has a brief concurrency with SH 111. It then turns northwest along Gonzales Street to an intersection with mainline Alt. US 77.

U.S. Route 77
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