Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/TX/COUNTY/DUVAL

Duval County, TX ZIP codes

Duval County, TX has 5 ZIP codes, in 5 towns: 78384, 78357, 78349, 78376 and 78341.

The county seat is San Diego.

ZIP codes
5
Towns
5
County seat
San Diego
County FIPS
48131
State
Texas
Population
9,742
Median household income
$49,038
Land area
1,793 sq mi

Duval County ZIP codes by town

San Diego (county seat)
78384

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Duval County ZIP codes

7834178349783577837678384

The ZIP codes of Duval County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Duval County in numbers

About 9,742 people live in Duval County, in 3,053 households, the 165th most populous of Texas's 254 counties. The median household income is $49,038 a year, 38% below the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $89,400 (68% below the Texas median), and median gross rent is $741 a month. The median age is 33.6; 6.8% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 30 minutes.

Population9,742Duval9,742
Households3,053Duval3,053
Median age33.6Duval33.6Texas35.6US 38.9
Median household income$49,038Duval$49,038Texas$78,476US $80,734
Median home value$89,400Duval$89,400Texas$283,800US $332,700
Median gross rent$741Duval$741Texas$1,403US $1,413
Bachelor's degree or higher6.8%Duval6.8%Texas33.8%US 35.7%
Mean commute29.8 minDuval29.8 minTexas26.7 minUS 26.4 min
Population density5 / sq miDuval5 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Duval County

Largest towns in Duval County
TownZIP codesPopulation
San Diego 1 3,675
Freer 1 2,253
Benavides 1 1,470
Realitos 1 32
Concepcion 1 16

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Duval County.

Not sure you are in Duval County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Duval County, with figures

ZIP codes in Duval County
ZIP City Type Population Median income Median home
78341 Benavides , TX Standard 1,550 $45,259 $76,100
78349 Concepcion , TX Standard 438 $38,235 $153,600
78357 Freer , TX Standard 2,624 $68,000 $137,500
78376 Realitos , TX Standard 105 $40,714 —
78384 San Diego , TX Standard 5,747 $47,603 $78,100

Cite this page

zipcodes.pro. “Duval County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/tx/county/duval

Underlying data is public domain or openly licensed — sources, vintages and licences.