Starr County, Texas

County seat: Rio Grande City · Population 66,319 (2025) · 1,223 sq mi

Starr County is the 56th most populous of Texas's 254 counties, with 66,319 people (2025 estimate). Its county seat is Rio Grande City. It is part of the South Texas region, one of the 12 Texas Comptroller economic regions. The map shows its 4 cities and towns and the 4 neighboring counties.

Map of Starr County, Texas with cities, towns and the county boundary
Starr County, Texas with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
Download PDF (Letter) 143 KBPNG image 84 KBTexas county map

Starr County facts

County seat
Rio Grande City
Population (2025 estimate)
66,319 +0.6% since 2020
Land area
1,223 sq mi 39th largest of 254
Water area
6 sq mi
Population density
54 per sq mi
Established
1848
Named after
James Harper Starr American public official (1809–1890)
Largest city
Rio Grande City 15,451
Median household income
$37,639
Cities and towns
4 plus 111 CDPs
ZIP codes
11
Time zone
Central
FIPS code
48427

Cities and towns in Starr County

Starr County has 4 incorporated cities, towns and villages. Populations count the people living inside Starr County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
Rio Grande City (county seat)City15,451
RomaCity11,543
EscobaresCity2,585
La GrullaCity1,234

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Las Lomas2,154
Mikes1,688
Alto Bonito Heights1,121
Mi Ranchito Estate1,091
Nina965
West Alto Bonito822
El Refugio780
El Rancho Vela623
La Puerta582
El Castillo566
Garza-Salinas II559
Mesquite515
Santa Rosa502
Olivia Lopez de Gutierrez455
Valle Vista424
El Cenizo377
Camargito376
Regino Ramirez369
J.F. Villareal353
La Esperanza347
East Alto Bonito340
La Minita337
Flor del Rio326
Palo Blanco321
La Paloma Ranchettes319
Pablo Pena319
La Victoria314
Sammy Martinez303
Santa Cruz285
El Chaparral282
Los Ebanos281
Ranchitos del Norte263
Los Alvarez245
Rancho Viejo238
Manuel Garcia219
San Isidro214
Fronton205
Garciasville196
Delmita183
North Escobares171
B and E169
La Escondida167
San Juan161
Garceno149
La Chuparosa148
Los Barreras148
Zarate146
Villarreal140
Benjamin Perez133
Loma Vista130
Eugenio Saenz120
Evergreen116
Ramos115
E. Lopez108
Fronton Ranchettes98
Guadalupe Guerra98
Chapeno95
El Brazil94
Narciso Pena91
Olmito and Olmito79
Salineño North77
Ramirez-Perez69
Sunset65
La Loma de Falcon57
La Rosita56
San Fernando55
Amada Acres52
El Quiote51
Salineño51
Barrera49
El Socio49
Lago Vista48
Campo Verde43
Rafael Pena42
Quesada40
Jardin de San Julian34
El Mesquite32
La Casita25
Longoria23
Chaparrito16
Gutierrez11
Martinez11
Airport Heights0
Anacua0
Buena Vista0
Casa Blanca0
Casas0
Elias-Fela Solis0
Falcon Heights0
Falcon Village0
Falconaire0
Fernando Salinas0
H. Cuellar Estates0
Hilltop0
Indio0
La Carla0
Loma Linda East0
Loma Linda West0
Los Arrieros0
Manuel Garcia II0
Miguel Barrera0
Moraida0
Netos0
Pena0
Rivereno0
Sandoval0
Santa Anna0
Santel0
Tierra Dorada0
Valle Hermoso0
Victoria Vera0

ZIP codes in Starr County

11 ZIP codes reach into Starr County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Starr County, 2020–2025

Starr County grew by 403 people (+0.6%) between April 2020 and July 2025: 2,672 more births than deaths and a net loss of 2,300 people from migration.

Year (July 1)Population
202065,853
202165,828
202265,696
202366,062
202466,398
202566,319

Neighboring counties

Printable Starr County map

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Sources

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