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

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/TX/HEIDELBERG

Heidelberg ZIP codes, Texas

No ZIP code is named for Heidelberg, TX; addresses there use a neighbouring town's name. The ZIP code covering it is 78570. Its area code is 956.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
2,215
Area code
956
State
Texas

NANPA lists no telephone rate centre for Heidelberg itself, so these are the area codes of the nearest one, Mercedes (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Heidelberg in numbers

About 2,215 people live in Heidelberg, in 572 households. The median household income is $33,953 a year, 57% below the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $57,700 (80% below the Texas median). The median age is 31.6; 3.4% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 14 minutes.

Population2,215Heidelberg2,215
Households572Heidelberg572
Median age31.6Heidelberg31.6Texas35.6US 38.9
Median household income$33,953Heidelberg$33,953Texas$78,476US $80,734
Median home value$57,700Heidelberg$57,700Texas$283,800US $332,700
Bachelor's degree or higher3.4%Heidelberg3.4%Texas33.8%US 35.7%
Mean commute13.7 minHeidelberg13.7 minTexas26.7 minUS 26.4 min
Population density839 / sq miHeidelberg839 / sq mi

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

ZIP codes covering Heidelberg

These ZIP codes cover part of Heidelberg but are addressed as somewhere else.

ZIP codes overlapping Heidelberg
ZIP City Type Population Median income Median home
78570 Mercedes , TX Standard 34,348 $41,965 $86,500

Map of Heidelberg ZIP codes

78570

The ZIP codes of Heidelberg, TX, 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.

Towns near Heidelberg

The nearest larger towns are Mercedes (16,733 people, 2.6 mi), Indian Hills (2,961 people, 2.8 mi) and La Feria (6,891 people, 4.2 mi).

Towns near Heidelberg
TownPopulationDistance
Mercedes 16,733 2.6 mi
Indian Hills 2,961 2.8 mi
La Feria 6,891 4.2 mi
Mila Doce 7,731 5.3 mi
Santa Rosa 3,215 6.3 mi
Weslaco 42,229 6.5 mi
Olivarez 6,326 7.4 mi
Progreso 4,998 7.4 mi
La Villa 3,005 8.2 mi
Midway North 3,594 8.3 mi
Primera 5,344 8.8 mi
Edcouch 2,739 9.0 mi
Donna 16,833 9.6 mi
Elsa 5,697 10.4 mi

More nearby: every ZIP code in Hidalgo County · Texas ZIP codes

Cite this page

zipcodes.pro. “Heidelberg, TX ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/tx/heidelberg

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